San Marcos, Texas Weather Conditions

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Current Conditions

  • 46°
  • Clear
  • Wind: North 9 mph
  • Humidity: 66%
  • Visibility: 10.0 miles
  • Dew Point: 36°
  • Pressure: 30.39 in. +
  • Heat Index: 42

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Next 12 Hours

7  am
10  am
1  pm
4  pm
7  pm
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
45°
55°
64°
68°
59°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Saturday
  • Clear
  • High: 68 °
  • Low: 45 °
  • Clear
  • Sunday
  • Partly Cloudy
  • High: 75 °
  • Low: 57 °
  • Partly Cloudy
  • Monday
  • Chance of a Thunderstorm
  • High: 79 °
  • Low: 64 °
  • Chance of a Thunderstorm
  • Tuesday
  • Chance of a Thunderstorm
  • High: 75 °
  • Low: 57 °
  • Chance of T-Storms
  • Wednesday
  • Chance of Rain
  • High: 64 °
  • Low: 52 °
  • Chance of Rain

Forecast for San Marcos, Texas

Updated: 4:00 AM CDT on November 01, 2014

  • Saturday

    Clear. High of 68F. Winds from the ESE at 5 to 15 mph.

  • Saturday Night

    Clear in the evening, then partly cloudy. Low of 45F. Winds from the SE at 5 to 10 mph.

  • Sunday

    Mostly cloudy in the morning, then overcast. High of 75F. Winds from the SE at 5 to 15 mph.

  • Sunday Night

    Mostly cloudy in the evening, then overcast. Fog overnight. Low of 57F. Winds from the SE at 5 to 15 mph.

  • Monday

    Overcast with a chance of a thunderstorm and a chance of rain. High of 79F. Breezy. Winds from the SSE at 10 to 20 mph. Chance of rain 20%.

  • Monday Night

    Overcast with a chance of a thunderstorm and a chance of rain. Low of 64F. Winds from the SSE at 10 to 15 mph.

  • Tuesday

    Overcast with a chance of a thunderstorm and rain in the afternoon. High of 75F. Winds from the SSE at 5 to 10 mph. Chance of rain 40%.

  • Tuesday Night

    Overcast with a chance of a thunderstorm and rain, then a chance of rain after midnight. Fog overnight. Low of 57F. Winds from the ENE at 5 to 15 mph shifting to the North after midnight. Chance of rain 80% with rainfall amounts near 1.0 in. possible.

  • Wednesday

    Overcast with a chance of rain. High of 64F. Breezy. Winds from the North at 10 to 20 mph. Chance of rain 70% with rainfall amounts near 0.4 in. possible.

  • Wednesday Night

    Overcast with a chance of rain. Low of 52F. Winds from the North at 10 to 15 mph. Chance of rain 50% with rainfall amounts near 0.3 in. possible.

  • Thursday

    Mostly cloudy with a chance of rain. High of 75F. Winds from the North at 10 to 15 mph. Chance of rain 50%.

  • Thursday Night

    Partly cloudy with a chance of rain. Low of 46F. Winds from the North at 5 to 10 mph. Chance of rain 40% with rainfall amounts near 0.4 in. possible.

  • Friday

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

  • Friday Night

    Clear. Low of 45F. Winds less than 5 mph.

  • Saturday

    Clear. High of 75F. Winds from the SSW at 5 to 10 mph.

  • Saturday Night

    Clear. Low of 52F. Winds from the ESE at 5 to 10 mph shifting to the NNE after midnight.

  • Sunday

    Clear. High of 75F. Winds less than 5 mph.

  • Sunday Night

    Clear. Fog overnight. Low of 52F. Winds less than 5 mph.

  • Monday

    Clear. High of 77F. Winds less than 5 mph.

  • Monday Night

    Partly cloudy. Fog overnight. Low of 54F. Winds less than 5 mph.

  • Tuesday

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

  • Tuesday Night

    Clear. Low of 54F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Spring Lake Hills, San Marcos, TX

Updated: 7:53 AM CDT

Temperature: 46.0 °F Dew Point: 42 °F Humidity: 85% Wind: NE at 4.5 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: Willow Creek, San Marcos, TX

Updated: 7:53 AM CDT

Temperature: 43.9 °F Dew Point: 41 °F Humidity: 89% Wind: Calm Pressure: 30.22 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: Siesta Verde, San Marcos, TX

Updated: 7:53 AM CDT

Temperature: 44.6 °F Dew Point: 39 °F Humidity: 81% Wind: North at 1.0 mph Pressure: 29.47 in Hourly Precipitation: 0.00 in Windchill: 45 °F Graphs

Location: Lime Kiln, San Marcos, TX

Updated: 7:53 AM CDT

Temperature: 44.1 °F Dew Point: 39 °F Humidity: 83% Wind: North at 4.0 mph Pressure: 30.35 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Hunter Ridge, San Marcos, TX

Updated: 7:53 AM CDT

Temperature: 49.3 °F Dew Point: 41 °F Humidity: 73% Wind: Calm Pressure: 30.36 in Hourly Precipitation: 0.00 in Windchill: 49 °F Graphs

Location: Oak Meadows, San Marcos, TX

Updated: 7:53 AM CDT

Temperature: 43.5 °F Dew Point: 41 °F Humidity: 90% Wind: Calm Pressure: 30.29 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: Four Seasons, Kyle, TX

Updated: 7:53 AM CDT

Temperature: 47.1 °F Dew Point: 40 °F Humidity: 77% Wind: North at 3.0 mph Pressure: 30.43 in Hourly Precipitation: 0.00 in Windchill: 47 °F Graphs

Location: Goodger Farm, Martindale, TX

Updated: 7:53 AM CDT

Temperature: 43.2 °F Dew Point: 43 °F Humidity: 98% Wind: Calm Pressure: 30.28 in Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

Location: Silverado, Kyle, TX

Updated: 7:41 AM CDT

Temperature: 46.0 °F Dew Point: 19 °F Humidity: 34% Wind: ENE at 1.7 mph Pressure: 30.24 in Hourly Precipitation: - Windchill: 46 °F Graphs

Location: Downtown, Staples, TX

Updated: 7:53 AM CDT

Temperature: 48.0 °F Dew Point: 42 °F Humidity: 79% Wind: NNW at 2.0 mph Pressure: 30.38 in Hourly Precipitation: 0.00 in Windchill: 48 °F Graphs

Location: River Mountain Ranch, Wimberley, TX

Updated: 7:53 AM CDT

Temperature: 40.6 °F Dew Point: 40 °F Humidity: 99% Wind: Calm Pressure: 30.27 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: Havenwood, New Braunfels, TX

Updated: 7:50 AM CDT

Temperature: 46.3 °F Dew Point: 40 °F Humidity: 79% Wind: Calm Pressure: 30.16 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: paradise hills, Wimberley, TX

Updated: 7:53 AM CDT

Temperature: 46.2 °F Dew Point: 15 °F Humidity: 28% Wind: North at 2.7 mph Pressure: 29.03 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: rolling oaks, New Braunfels, TX

Updated: 7:53 AM CDT

Temperature: 45.7 °F Dew Point: 40 °F Humidity: 79% Wind: Calm Pressure: 30.01 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: ParkPlace4RV's, Canyon Lake, TX

Updated: 7:53 AM CDT

Temperature: 45.5 °F Dew Point: 40 °F Humidity: 80% Wind: NE at 4.0 mph Pressure: 30.34 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: Un Encino Rancho - Box Canyon, Wimberley, TX

Updated: 7:12 AM CDT

Temperature: 40.9 °F Dew Point: 38 °F Humidity: 89% Wind: Calm Pressure: 30.20 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: MesoWest GOODWN TX US UPR, New Braunfels, TX

Updated: 4:20 AM CDT

Temperature: 48 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 48 °F Graphs

Location: Hilltop Ridge - The Summit, New Braunfels, TX

Updated: 7:40 AM CDT

Temperature: 43.2 °F Dew Point: 39 °F Humidity: 86% Wind: Calm Pressure: 30.34 in Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

Location: River Road/Lange Road, Wimberley, TX

Updated: 7:48 AM CDT

Temperature: 39.4 °F Dew Point: 38 °F Humidity: 95% Wind: Calm Pressure: 30.30 in Hourly Precipitation: - Windchill: 39 °F Graphs

Location: Sierra West Section 2, Driftwood, TX

Updated: 7:53 AM CDT

Temperature: 42.7 °F Dew Point: 39 °F Humidity: 86% Wind: Calm Pressure: 30.40 in Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

Location: River Chase, New Braunfels, TX

Updated: 7:44 AM CDT

Temperature: 46.2 °F Dew Point: 35 °F Humidity: 65% Wind: Calm Pressure: 30.12 in Hourly Precipitation: - Windchill: 46 °F Graphs

Location: Guadalupe River at Riverside Path, Canyon Lake, TX

Updated: 7:53 AM CDT

Temperature: 40.1 °F Dew Point: 40 °F Humidity: 99% Wind: Calm Pressure: 30.23 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: RAWS AUSTIN WATER QD TX US, Driftwood, TX

Updated: 6:48 AM CDT

Temperature: 39 °F Dew Point: 37 °F Humidity: 93% Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

Location: Gruene Crossing, New Braunfels, TX

Updated: 7:53 AM CDT

Temperature: 46.9 °F Dew Point: 22 °F Humidity: 37% Wind: North at 2.2 mph Pressure: 29.77 in Hourly Precipitation: 0.00 in Windchill: 47 °F Graphs

Location: Preiss Heights, New Braunfels, TX

Updated: 7:53 AM CDT

Temperature: 46.1 °F Dew Point: 41 °F Humidity: 82% Wind: Calm Pressure: 30.31 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: Flying Horses Ranch, Buda, TX

Updated: 7:53 AM CDT

Temperature: 44.2 °F Dew Point: 40 °F Humidity: 84% Wind: Calm Pressure: 30.37 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: Canyon Falls RV Park, Canyon Lake, TX

Updated: 7:53 AM CDT

Temperature: 47.3 °F Dew Point: 40 °F Humidity: 74% Wind: Calm Pressure: 30.27 in Hourly Precipitation: 0.00 in Windchill: 47 °F Graphs

Location: Garlic Creek West, Buda, TX

Updated: 7:39 AM CDT

Temperature: 43.8 °F Dew Point: 41 °F Humidity: 89% Wind: Calm Pressure: 30.34 in Hourly Precipitation: - Windchill: 44 °F Graphs

Location: Garlic Creek, Buda, TX

Updated: 7:44 AM CDT

Temperature: 43.3 °F Dew Point: 39 °F Humidity: 86% Wind: NNW at 1.7 mph Pressure: 30.33 in Hourly Precipitation: - Windchill: 43 °F Graphs

Location: LCYC, Canyon Lake, TX

Updated: 7:49 AM CDT

Temperature: 49.1 °F Dew Point: 41 °F Humidity: 74% Wind: NNE at 3.0 mph Pressure: 30.32 in Hourly Precipitation: 0.00 in Windchill: 49 °F Graphs

Location: Turnersville, Buda, TX

Updated: 7:53 AM CDT

Temperature: 43.7 °F Dew Point: 33 °F Humidity: 66% Wind: NNE at 11.0 mph Pressure: 30.31 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: La Ventana, Driftwood, TX

Updated: 7:50 AM CDT

Temperature: 41.4 °F Dew Point: 38 °F Humidity: 87% Wind: Calm Pressure: 30.33 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: Blanco River Estates, Wimberley, TX

Updated: 7:53 AM CDT

Temperature: 36.5 °F Dew Point: 34 °F Humidity: 91% Wind: Calm Pressure: 30.38 in Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

Location: APRSWXNET Buda TX US, Austin, TX

Updated: 7:16 AM CDT

Temperature: 41 °F Dew Point: 35 °F Humidity: 80% Wind: Calm Pressure: 30.26 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Austin/San Antonio Texas 
631 am CDT Sat Nov 1 2014 


Aviation... 
surface high moves off to the east today. Northeasterly winds early this 
morning shift to southeasterly with 5 to 10 kts most areas late morning 
into this afternoon...except 10 to 15 kts along the Rio Grande 
into Edwards Plateau including kdrt. VFR skies prevail today into 
this evening...then lower level moisture increases leading to MVFR 
ceilings in stratus across areas west of a kvct to khyi to kaqo line 
during by early Sunday morning. Further east...will go with only a 
tempo middle morning at kaus. By late morning...ceilings rise to low end 
VFR all areas. 


&& 


Previous discussion... /issued 331 am CDT Sat Nov 1 2014/ 


Short term (today through sunday)... 
high pressure over The Big Bend region will cause dry northwest 
winds for Saturday across the area. This will result in sunny 
skies with highs below seasonal normals. As we fall back an hour 
Sunday morning temperatures will drop into the low to middle 40s 
across the I-35 corridor and Hill Country while the Rio Grande 
plains see lows in the middle 50s. The surface high shifts east on 
Sunday switching the winds around out of the southeast. Skies will 
be partly to mostly cloudy Sunday with temperatures closer to 
normal due to both Pacific moisture from Vance and the return of 
moisture from the Gulf. 


Long term (sunday night through friday)... 
Monday will be a transition day as the high pressure continues to 
push off to the east and the upper trough approaches from the west. 
With the approaching trough and ample moisture in place areas 
across The Hill Country and Edwards Plateau could see an isolated 
showers or thunderstorm. 


It is at this point where models begin to disagree concerning the 
upper level trough. Of all of the Middle-Range forecast models the 
GFS is the most progressive. It brings a cold front through the 
area Tuesday into Wednesday with a deep trough across northern 
Mexico becoming a cut off low across Texas Wednesday and Thursday. 
GFS precipitable water values for Tuesday through Thursday range from 1.3 to 1.5 
inches hinting at the possibility for some heavy rainfall. 


The European model (ecmwf) is much slower with a trough over Arizona Tuesday into 
Wednesday...a cut off low over northern Mexico Wednesday into 
Thursday...finally ejecting out over North Texas Friday. The cold 
front with the European model (ecmwf) is also slower by about 12 hours to move 
through central Texas. 


Another middle to long range model...the dgex seems to be a blend of 
the European model (ecmwf) and GFS. It has the slower movement of the low while keep 
the southern trajectory. 


With so much disagreement in the models have gone with a 
persistence forecast for now blending the models together...but 
leaning heavier on the GFS. The best chances of rain at this point 
look to be Tuesday and Wednesday...with lingering isolated 
activity possible Thursday into Friday. With Pacific moisture from 
Vance streaming in ahead of the trough there could be some locally 
heavy rainfall. Depending on the track and timing of the trough there is 
a chance that the moisture and lift from the trough are not timed 
together...or we get dry slotted from the low...both decreasing 
the chance and amount of rainfall. Despite this confidence remains 
moderate to high that we will see a good chance for showers and 
thunderstorms by the middle of next week due to the cold 
front...the trough...and plentiful moisture. 


The cold front will drop south central Texas temperatures to about 
10 degrees below normal for the middle of next week with 
temperature warming to near seasonal normals...in the low to middle 
70s...by next weekend. 


Treadway 


&& 


Preliminary point temps/pops... 
Austin Camp Mabry 67 47 72 61 77 / 0 0 - 10 20 
Austin Bergstrom international Airport 67 42 73 58 77 / 0 0 - 10 20 
New Braunfels Muni Airport 70 47 74 61 79 / 0 0 - 10 20 
Burnet Muni Airport 65 47 69 61 74 / 0 0 - 10 20 
del Rio International Airport 70 57 74 64 79 / - - 10 10 20 
Georgetown Muni Airport 65 44 70 59 76 / 0 0 - 10 20 
Hondo Muni Airport 69 47 72 61 77 / - - 10 10 20 
San Marcos Muni Airport 68 45 74 60 78 / 0 0 - 10 20 
La Grange - Fayette regional 68 43 74 61 79 / - 10 10 10 10 
San Antonio International Airport 70 52 74 65 79 / 0 0 - 10 20 
Stinson Muni Airport 71 51 76 64 80 / 0 0 - 10 20 


&& 


Ewx watches/warnings/advisories... 
none. 
&& 


$$ 


Mesoscale/aviation...04 
synoptic/grids...12 



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