Waukegan, Illinois Weather Conditions

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Current Conditions

  • 71°
  • Mostly Cloudy
  • Wind: SSE 6 mph
  • Humidity: 81%
  • Visibility: 10.0 miles
  • Dew Point: 65°
  • Pressure: 29.95 in. 0

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Next 12 Hours

4  am
7  am
10  am
1  pm
4  pm
Chance of a Thunderstorm
Chance of T-storms
Chance of a Thunderstorm
Chance of T-storms
Chance of a Thunderstorm
Chance of T-storms
Chance of a Thunderstorm
Chance of T-storms
Chance of a Thunderstorm
Chance of T-storms
68°
70°
70°
73°
72°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Friday
  • Chance of a Thunderstorm
  • High: 75 °
  • Low: 68 °
  • Chance of T-Storms
  • Saturday
  • Thunderstorm
  • High: 77 °
  • Low: 64 °
  • T-Storms
  • Sunday
  • Chance of a Thunderstorm
  • High: 77 °
  • Low: 68 °
  • Chance of a Thunderstorm
  • Monday
  • Chance of a Thunderstorm
  • High: 79 °
  • Low: 63 °
  • Chance of T-Storms
  • Tuesday
  • Partly Cloudy
  • High: 79 °
  • Low: 63 °
  • Partly Cloudy

Forecast for Waukegan, Illinois

Updated: 4:00 AM CDT on August 29, 2014

  • Friday

    Overcast with a chance of a thunderstorm and a chance of rain. High of 75F. Winds from the South at 10 to 15 mph. Chance of rain 50%.

  • Friday Night

    Partly cloudy with a chance of a thunderstorm and a chance of rain. Low of 68F. Winds from the South at 5 to 15 mph. Chance of rain 40% with rainfall amounts near 0.3 in. possible.

  • Saturday

    Overcast with thunderstorms and rain showers, then a chance of a thunderstorm and a chance of rain in the afternoon. High of 77F. Winds from the SW at 5 to 10 mph. Chance of rain 60%.

  • Saturday Night

    Partly cloudy. Low of 64F. Winds from the WSW at 5 to 10 mph.

  • Sunday

    Partly cloudy. High of 77F. Winds from the South at 5 to 10 mph. Chance of rain 20%.

  • Sunday Night

    Partly cloudy with a chance of a thunderstorm and a chance of rain. Fog overnight. Low of 68F. Winds from the South at 10 to 15 mph.

  • Monday

    Overcast with a chance of a thunderstorm and rain. Fog early. High of 79F. Breezy. Winds from the SSW at 15 to 20 mph. Chance of rain 40%.

  • Monday Night

    Partly cloudy with a chance of a thunderstorm and rain. Fog overnight. Low of 63F. Winds from the SW at 5 to 10 mph shifting to the North after midnight. Chance of rain 50% with rainfall amounts near 0.2 in. possible.

  • Tuesday

    Partly cloudy. High of 79F. Winds from the NNW at 5 to 10 mph.

  • Tuesday Night

    Partly cloudy. Low of 63F. Winds from the SSW at 5 to 10 mph.

  • Wednesday

    Partly cloudy. High of 79F. Winds less than 5 mph.

  • Wednesday Night

    Clear. Fog overnight. Low of 63F. Winds less than 5 mph.

  • Thursday

    Clear. High of 79F. Winds from the ESE at 5 to 10 mph.

  • Thursday Night

    Partly cloudy. Fog overnight. Low of 72F. Winds from the SSE at 5 to 15 mph.

  • Friday

    Clear with a chance of a thunderstorm. Fog early. High of 77F. Winds from the SSW at 10 to 15 mph. Chance of rain 20%.

  • Friday Night

    Clear. Fog overnight. Low of 64F. Winds from the SSW at 5 to 15 mph.

  • Saturday

    Partly cloudy with a chance of a thunderstorm. Fog early. High of 77F. Winds less than 5 mph. Chance of rain 50%.

  • Saturday Night

    Overcast with a chance of a thunderstorm. Fog overnight. Low of 63F. Winds less than 5 mph. Chance of rain 50% with rainfall amounts near 0.2 in. possible.

  • Sunday

    Partly cloudy. High of 75F. Winds less than 5 mph.

  • Sunday Night

    Clear. Low of 63F. Winds less than 5 mph.

  • Monday

    Clear. High of 73F. Winds less than 5 mph.

  • Monday Night

    Clear. Low of 63F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: North Side, Waukegan, Waukegan, IL

Updated: 5:01 AM CDT

Temperature: 72.0 °F Dew Point: 67 °F Humidity: 83% Wind: South at 2.0 mph Pressure: 29.82 in Hourly Precipitation: 0.00 in Heat Index: 71 °F Graphs

Location: HADS WAUKEGAN HARBOR NWS-GLOS, Waukegan, IL

Updated: 3:40 AM CDT

Temperature: 72 °F Dew Point: - Humidity: - Wind: South at 9 mph Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: The Pines, Gurnee, IL

Updated: 4:45 AM CDT

Temperature: 69.6 °F Dew Point: 69 °F Humidity: 97% Wind: ESE at 1.1 mph Pressure: 29.87 in Hourly Precipitation: - Heat Index: - Graphs

Location: Westgate, Gurnee, IL

Updated: 5:02 AM CDT

Temperature: 69.4 °F Dew Point: 67 °F Humidity: 92% Wind: Calm Pressure: 29.20 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Prairie Ridge Farm, Green Oaks, IL

Updated: 5:02 AM CDT

Temperature: 69.1 °F Dew Point: 67 °F Humidity: 92% Wind: Calm Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Jerry's South Central Zion 2, Zion, IL

Updated: 5:02 AM CDT

Temperature: 69.8 °F Dew Point: 66 °F Humidity: 89% Wind: Calm Pressure: 29.89 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Jerry's South Central Zion 1, Zion, IL

Updated: 5:02 AM CDT

Temperature: 71.8 °F Dew Point: 67 °F Humidity: 85% Wind: Calm Pressure: 29.86 in Hourly Precipitation: 0.00 in Heat Index: 71 °F Graphs

Location: Reserve at the Merit Club, Libertyville, IL

Updated: 5:02 AM CDT

Temperature: 69.7 °F Dew Point: 68 °F Humidity: 94% Wind: Calm Pressure: 30.02 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Zion E.S.D.A., Zion, IL

Updated: 5:02 AM CDT

Temperature: 70.6 °F Dew Point: 67 °F Humidity: 88% Wind: SSE at 2.0 mph Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Tom's Central Zion, Zion, IL

Updated: 5:02 AM CDT

Temperature: 70.5 °F Dew Point: 70 °F Humidity: 99% Wind: Calm Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Near West Elementary School, Zion, IL

Updated: 5:02 AM CDT

Temperature: 71.1 °F Dew Point: 66 °F Humidity: 83% Wind: South at 4.7 mph Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: 71 °F Graphs

Location: Concord Oaks East, Gurnee, IL

Updated: 5:02 AM CDT

Temperature: 69.3 °F Dew Point: 67 °F Humidity: 91% Wind: SE at 2.9 mph Pressure: 29.85 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Concord Oaks - West, Gurnee, IL

Updated: 5:00 AM CDT

Temperature: 68.5 °F Dew Point: 65 °F Humidity: 89% Wind: Calm Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: near lake michigan, Lake Bluff, IL

Updated: 5:02 AM CDT

Temperature: 71.2 °F Dew Point: 64 °F Humidity: 79% Wind: Calm Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: 72 °F Graphs

Location: Libertyville Township Highway Dept., Libertyville, IL

Updated: 4:48 AM CDT

Temperature: 67.6 °F Dew Point: 67 °F Humidity: 99% Wind: Calm Pressure: 29.91 in Hourly Precipitation: - Heat Index: - Graphs

Location: Deerpath, Lake Villa, IL

Updated: 5:02 AM CDT

Temperature: 68.7 °F Dew Point: 66 °F Humidity: 92% Wind: Calm Pressure: 29.94 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Lorelei Acres, Zion, IL

Updated: 5:02 AM CDT

Temperature: 70.7 °F Dew Point: 67 °F Humidity: 89% Wind: Calm Pressure: 30.02 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Bull Creek, Libertyville, IL

Updated: 5:02 AM CDT

Temperature: 68.4 °F Dew Point: 67 °F Humidity: 95% Wind: Calm Pressure: 29.91 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Country Place, Lindenhurst, IL

Updated: 4:54 AM CDT

Temperature: 68.4 °F Dew Point: 67 °F Humidity: 94% Wind: Calm Pressure: 29.88 in Hourly Precipitation: - Heat Index: - Graphs

Location: Sunshine Subdivision, Third Lake, IL

Updated: 5:02 AM CDT

Temperature: 69.3 °F Dew Point: 66 °F Humidity: 89% Wind: Calm Pressure: 29.03 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: The Highlands, Libertyville, IL

Updated: 5:02 AM CDT

Temperature: 67.5 °F Dew Point: 65 °F Humidity: 91% Wind: Calm Pressure: 29.17 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: 7th & Landon (Near Metra), Winthrop Harbor, IL

Updated: 4:58 AM CDT

Temperature: 72.3 °F Dew Point: 72 °F Humidity: 99% Wind: South at 1.0 mph Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Lake Forest, IL

Updated: 4:46 AM CDT

Temperature: 68.8 °F Dew Point: 66 °F Humidity: 92% Wind: Calm Pressure: 29.24 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: CountryPlaceM, Lindenhurst, IL

Updated: 4:49 AM CDT

Temperature: 68.5 °F Dew Point: 68 °F Humidity: 98% Wind: Calm Pressure: 29.82 in Hourly Precipitation: - Heat Index: - Graphs

Location: Covenant Cove, Winthrop Harbor, IL

Updated: 4:55 AM CDT

Temperature: 70.7 °F Dew Point: 68 °F Humidity: 90% Wind: Calm Pressure: 29.95 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Greentree, Libertyville, IL

Updated: 5:02 AM CDT

Temperature: 68.2 °F Dew Point: 67 °F Humidity: 98% Wind: Calm Pressure: 29.35 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Greggs Landing, Vernon Hills, IL

Updated: 5:02 AM CDT

Temperature: 68.5 °F Dew Point: 67 °F Humidity: 95% Wind: Calm Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Grayslake, IL

Updated: 4:47 AM CDT

Temperature: 68.7 °F Dew Point: 66 °F Humidity: 92% Wind: SSE at 1.0 mph Pressure: 29.95 in Hourly Precipitation: - Heat Index: - Graphs

Location: Lake Linden, Lindenhurst, IL

Updated: 5:02 AM CDT

Temperature: 68.5 °F Dew Point: 66 °F Humidity: 91% Wind: Calm Pressure: 29.93 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Cedar Crossing, Lake Villa, IL

Updated: 5:02 AM CDT

Temperature: 67.0 °F Dew Point: 64 °F Humidity: 89% Wind: Calm Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: New Century Town, Vernon Hills, IL

Updated: 5:02 AM CDT

Temperature: 69.6 °F Dew Point: 66 °F Humidity: 89% Wind: Calm Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Silver Oaks, Round Lake Beach, IL

Updated: 4:53 AM CDT

Temperature: 67.6 °F Dew Point: 67 °F Humidity: 98% Wind: Calm Pressure: 29.73 in Hourly Precipitation: - Heat Index: - Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Chicago/Romeoville Illinois 
331 am CDT Friday Aug 29 2014 


Discussion... 
326 am CDT 


The main forecast concerns will center around convective chances and 
timing...as well as temperatures today...and through the Holiday weekend. 


Currently...the remnant mesoscale convective vortex from yesterday evenings showers and 
storms continues to shift across my southern counties early this 
morning. However...only a few light showers/sprinkles remain across 
this area...with drier and fairly stable conditions in place to the east. 


Another area of convection is ongoing to our west across Iowa and 
into southern Minnesota. This activity is occurring within a region of good 
lower level warm air advection/isentropic ascent on the downstream 
periphery of a remnant middle/upper level trough over the plains states. 
Down stream upper ridging over the Great Lakes region is leading to a 
steering flow to the northeast. Therefore...most if not all of this 
convective activity will shift into southern Wisconsin and perhaps 
far northwestern Illinois this morning. In spite of this...I have 
left slight chance probability of precipitation in this morning as it is possible that some 
additional cells could develop in association with an eastward moving 
outflow boundary...as evident off of the dmx radar moving towards 
eastern Iowa. This activity...if it occurs in any of northern 
Illinois early this morning...would likely be isolated to widely 
scattered...with the main focus remaining north. 


A surface warm front is expected to lift northward over the area 
into this afternoon...with a warmer airmass expected in its wake. In 
spite of this...however...high temperatures across the area will be 
tricky as it appears that some scattered thunderstorms could develop 
across portions of the area this afternoon...and hamper the magnitude 
of the warmth across some areas. Modest height falls aloft are forecast 
across northern Illinois in association with the aforementioned upper 
trough shifting eastward over the middle Missouri Valley this 
afternoon. In spite of the fact that the best large scale forcing 
for ascent with this disturbance should remain west of the area this 
afternoon...the expected increase in low-level Theta-E is expected 
to produce an uncapped atmosphere featuring MLCAPES of around 1500 
j/kg by this afternoon. A majority of the global models...as well as 
the hires convective allowing models fire up activity within this 
regime this afternoon. It appears we will have to watch morning 
cloud cover...however...as this could inhibit the degree of 
warming a bit through the morning...and possibly lead to weaker 
instability than what the models are currently advertising. 


If the convection does develop as expected...marginal deep layer 
shear of 25 to 30 knots could allow for a few stronger storms capable 
of some isolated high wind gusts. Some torrential downpours would 
also be a threat from these storms given the juicy airmass featuring 
precipitable waters  up around 1.75 inches. However...extreme rainfall amounts 
appear unlikely given storm motions should be to the northeast 
around 30 knots. So the storms should not be over a given area too 
long. Much of this activity appears to be highly diurnal in 
nature...so a rapid downward trend is expected after sunset this 
evening. 


Another round of thunderstorms appears likely on 
Saturday...especially during the morning as the upper level 
trough...and an associated surface low and cold front shifts 
eastward across across southern WI and northern Illinois. This activity 
could linger into Saturday evening across my far southeastern 
counties. However...it appears that following this frontal passage 
we will be greeted with a nice dry Sunday across the area. 


Unfortunately...Labor Day appears that it could be another active 
weather day across the region. Another potent upper level 
disturbance and surface front is forecast to shift over the area by 
Monday. We will also have to watch for the threat of severe 
thunderstorms on Monday and Monday night as a 45 to 50 knots middle level 
jet is prognosticated to develop across the area. This could result in deep 
layer shear strong enough to produce more organized strong to severe 
convection. Very heavy rainfall would again be a concern with this 
activity...especially if the frontal zone stalls out over the area 
Monday night. At this time...however...uncertainty is high on where 
the surface front may stall and hence what areas could be favored for 
extended periods of very heavy rainfall. 


The active weather pattern could shift south of the area for a day 
or two into middle to late week before more periods of convection are 
possible. Overall...it appears temperatures will remain on the warm 
side of average...with the potential for some very warm and humid days 
later next week. 


Kjb 


&& 


Aviation... 


//Ord and mdw concerns...updated 09z... 


* isolated rain showers/thunderstorms and rain late tonight into early Friday morning. 


* Scattered thunderstorms and rain Friday afternoon/early evening. 


* South wind with gusts developing to 20kt late morning Friday. 


Krein 


//discussion...updated 06z... 


Forecast concerns will focus on rain showers/thunderstorms and rain potential through the 
period as well as gusty south winds developing late Friday morning 
and persisting into early Friday evening. 


For the remainder of the overnight hours...the region will remain 
under southeasterly flow...north of a warm front currently over central MO to 
southern Illinois. Some remnant showers from earlier convective activity are 
still seen on the latest radar imagery...but this activity is 
diminishing with time for much of the region. The exception is a 
small area of rain which is more persistent over ecntrl Illinois. With 
middle level flow more southwesterly...there has been a more 
persistent fetch of light precipitation into northwestern Illinois...so kgyy could likely 
see some light rain through the night though no addition thunder 
is anticipated with this precipitation. With a very moist airmass in place 
from recent precipitation along with light winds...there will be the 
potential for some patchy br with kdpa/krfd being the more likely 
taf sites to see visible drop at least into MVFR levels. Expect that 
Ord/mdw should remain VFR as winds will remain a little stronger 
and temperature/dewpoint spreads a little higher. 


The warm front will slowly lift northward through the night and push 
north of the terminals by late Friday morning. At this 
point...winds will shift to more southerly. Some breaks in the 
cloud cover should allow for deeper layer mixing...tapping 
stronger winds aloft and expect that winds will begin to gust to 
20kt following the warm frontal passage. 


Instability will increases very quickly as the warm front passes 
to the north and warm sector air overspreads the region bringing 
increasing temperatures and dewpoints. Middle level impulses should 
track across the area Friday afternoon and evening in upper level 
southwesterly flow as the upper ridge pushes to the east and a larger scale 
upper trough moves across the Central Plains. These impulses will 
be the triggering mechanism for additional shra/tsra...but in the 
absence of any surface forcing...activity will generally be scattered 
and difficult to time at the terminals. So...will maintain the 
going prob30 group for thunderstorms and rain with the most favorable timing during 
the afternoon hours. However...with scattered coverage...any of 
the terminals could see some rain showers/thunderstorms and rain a little earlier or a 
little later than the going prob30 timing. 


Krein 


//Ord and mdw confidence...updated 09z... 


* low confidence in thunder chances/coverage and specific timing 
Friday afternoon. 


* High confidence in wind trends through the period. 


* Medium confidence that Ord/mdw will remain VFR through the 
remainder of the night and into early Friday morning. 


Krein 


//outlook for Ord/mdw for 12z Saturday-12z Thursday...updated 00z... 


* Saturday...thunderstorms and rain likely. 
* Sunday...slight chance of thunderstorms and rain. 
* Monday and Tuesday...chance of thunderstorms and rain. 
* Wednesday and Thursday...slight chance of thunderstorms and rain 


Kmd 


&& 


Marine... 
315 am CDT 


High pressure over the eastern Great Lakes will move east off the 
New England coast Friday evening...while a trough of low pressure 
develops across the Central Plains and upper Midwest. This will 
set up a period of southerly winds and as the trough moves 
east...the gradient over the lake will strengthen and winds should 
increase to the 20-25 knots range. A deepening low center within the 
trough will move to Wisconsin Saturday and across Northern Lake 
Michigan Saturday evening. As the low tracks to the northeast...an 
associated cold front will move down the lake Saturday afternoon 
and evening...quickly shifting winds to northwesterly following the frontal passage. 
The latest model guidance suggests that the front will wash out 
late Saturday night before reaching the south end of the lake and 
winds there should never truly shift northwesterly...but rather becoming 
light and variable late Saturday night through Sunday morning. A 
deeper low is expected to develop over the Dakotas and lift 
through western Ontario Sunday night and Monday bringing a return 
to brisk south to southwest winds to the lake for Monday and 
Tuesday. 


Krein 


&& 


Lot watches/warnings/advisories... 
Illinois...none. 
In...none. 
Lm...none. 
&& 


$$ 


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