San Marcos, Texas Weather Conditions

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Current Conditions

  • 70°
  • Overcast
  • Wind: SSW 7 mph
  • Humidity: 88%
  • Visibility: 7.0 miles
  • Dew Point: 66°
  • Pressure: 29.72 in. 0

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Next 12 Hours

6  am
9  am
12  pm
3  pm
6  pm
Overcast
Overcast
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Partly Cloudy
Partly Cloudy
Chance of a Thunderstorm
Chance of T-storms
69°
70°
78°
85°
83°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Sunday
  • Chance of a Thunderstorm
  • High: 87 °
  • Low: 63 °
  • Chance of T-Storms
  • Monday
  • Partly Cloudy
  • High: 85 °
  • Low: 58 °
  • Partly Cloudy
  • Tuesday
  • Partly Cloudy
  • High: 69 °
  • Low: 48 °
  • Partly Cloudy
  • Wednesday
  • Clear
  • High: 75 °
  • Low: 49 °
  • Clear
  • Thursday
  • Clear
  • High: 78 °
  • Low: 53 °
  • Clear

Forecast for San Marcos, Texas

Updated: 4:15 AM CDT on January 26, 2015

  • Sunday

    Mostly cloudy early with scattered thunderstorms developing this afternoon. A few storms may be severe. High 87F. Winds S at 15 to 25 mph. Chance of rain 40%.

  • Sunday Night

    Scattered thunderstorms early, then mostly cloudy overnight with heavy thunderstorms becoming likely. A few storms may be severe. Low 63F. SSE winds shifting to WNW at 15 to 25 mph. Chance of rain 90%.

  • Monday

    Sunshine and clouds mixed. A stray shower or thunderstorm is possible. High around 85F. Winds N at 10 to 15 mph.

  • Monday Night

    Partly cloudy skies in the evening, then becoming cloudy overnight. A stray shower or thunderstorm is possible. Low 58F. Winds N at 15 to 25 mph.

  • Tuesday

    Partly cloudy and windy. High 69F. Winds N at 20 to 30 mph.

  • Tuesday Night

    Clear skies. Low 48F. Winds NNW at 10 to 20 mph.

  • Wednesday

    Sunny. High near 75F. Winds NNW at 10 to 15 mph.

  • Wednesday Night

    Clear. Low 49F. Winds NW at 5 to 10 mph.

  • Thursday

    A few clouds from time to time. High 78F. Winds N at 5 to 10 mph.

  • Thursday Night

    Clear. Low 53F. Winds SE at 5 to 10 mph.

  • Friday

    Except for a few afternoon clouds, mainly sunny. High 81F. Winds S at 5 to 10 mph.

  • Friday Night

    Clear. Low 56F. Winds S at 5 to 10 mph.

  • Saturday

    Sunshine and clouds mixed. High 81F. Winds SSE at 10 to 15 mph.

  • Saturday Night

    A few clouds. Low around 60F. Winds SSE at 10 to 15 mph.

  • Sunday

    Sun and clouds mixed with a slight chance of thunderstorms during the afternoon. High 82F. Winds SSE at 10 to 20 mph. Chance of rain 30%.

  • Sunday Night

    Partly cloudy skies early followed by increasing clouds with showers developing later at night. Low 63F. Winds SSE at 10 to 15 mph. Chance of rain 40%.

  • Monday

    Scattered thunderstorms in the morning. Partly cloudy skies late. High 84F. Winds SSE at 10 to 20 mph. Chance of rain 50%.

  • Monday Night

    Variable clouds with a slight chance of thunderstorms overnight. Low 66F. Winds SSE at 10 to 15 mph. Chance of rain 30%.

  • Tuesday

    Mixed clouds and sun with scattered thunderstorms. High near 85F. Winds SSE at 10 to 20 mph. Chance of rain 40%.

  • Tuesday Night

    Variably cloudy with scattered thunderstorms. Low 67F. Winds SSE at 10 to 20 mph. Chance of rain 40%.

  • Wednesday

    Scattered showers and thunderstorms. High near 85F. Winds SSE at 10 to 20 mph. Chance of rain 50%.

  • Wednesday Night

    Variable clouds with thunderstorms, especially overnight. Low 68F. Winds SSE at 10 to 15 mph. Chance of rain 40%.

Severe Weather Alert Descriptions

 Record Report  Statement as of 2:00 am CDT on April 26, 2015


... Record daily maximum rainfall set at San Antonio...

Record rainfall of 2.20 inches was set at San Antonio yesterday
April 25th. This breaks the old record of 1.84 set in 1915.




Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Heritage, San Marcos, TX

Updated: 6:26 AM CDT

Temperature: 72.7 °F Dew Point: 67 °F Humidity: 83% Wind: North at - Pressure: 29.55 in Hourly Precipitation: 0.00 in Heat Index: 72 °F Graphs

Location: Spring Lake Hills, San Marcos, TX

Updated: 6:29 AM CDT

Temperature: 70.3 °F Dew Point: 55 °F Humidity: 59% Wind: Calm Pressure: 29.92 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Willow Creek, San Marcos, TX

Updated: 6:29 AM CDT

Temperature: 70.3 °F Dew Point: 68 °F Humidity: 94% Wind: Calm Pressure: 29.60 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Siesta Verde, San Marcos, TX

Updated: 6:29 AM CDT

Temperature: 69.4 °F Dew Point: 68 °F Humidity: 96% Wind: Calm Pressure: 29.62 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Lime Kiln, San Marcos, TX

Updated: 6:29 AM CDT

Temperature: 69.7 °F Dew Point: 68 °F Humidity: 94% Wind: South at 1.0 mph Pressure: 29.66 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Hay Barn Drive, Kyle, TX

Updated: 6:25 AM CDT

Temperature: 70.9 °F Dew Point: 68 °F Humidity: 92% Wind: North at - Pressure: 29.57 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Hunter Ridge, San Marcos, TX

Updated: 6:29 AM CDT

Temperature: 69.4 °F Dew Point: 69 °F Humidity: 100% Wind: Calm Pressure: 29.70 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Quail Run, Martindale, TX

Updated: 6:29 AM CDT

Temperature: 70.2 °F Dew Point: 66 °F Humidity: 86% Wind: South at 1.6 mph Pressure: 29.79 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Oak Meadows, San Marcos, TX

Updated: 6:29 AM CDT

Temperature: 69.3 °F Dew Point: 69 °F Humidity: 99% Wind: Calm Pressure: 29.67 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Cypress Road, Kyle, TX

Updated: 6:29 AM CDT

Temperature: 69.8 °F Dew Point: 68 °F Humidity: 94% Wind: Calm Pressure: 29.55 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Goodger Farm, Martindale, TX

Updated: 6:29 AM CDT

Temperature: 70.3 °F Dew Point: 70 °F Humidity: 98% Wind: Calm Pressure: 29.64 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Silverado, Kyle, TX

Updated: 6:22 AM CDT

Temperature: 74.5 °F Dew Point: 74 °F Humidity: 98% Wind: West at 3.7 mph Pressure: 29.55 in Hourly Precipitation: - Heat Index: 71 °F Graphs

Location: Downtown, Staples, TX

Updated: 6:29 AM CDT

Temperature: 72.1 °F Dew Point: 70 °F Humidity: 93% Wind: South at 3.6 mph Pressure: 29.74 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Windy Hill, Kyle, TX

Updated: 6:28 AM CDT

Temperature: 69.8 °F Dew Point: 70 °F Humidity: 99% Wind: SSW at 2.2 mph Pressure: 29.74 in Hourly Precipitation: - Heat Index: - Graphs

Location: Elk Ridge Rockpile, Canyon Lake, TX

Updated: 6:27 AM CDT

Temperature: 68.9 °F Dew Point: 68 °F Humidity: 96% Wind: SW at 3.7 mph Pressure: 29.46 in Hourly Precipitation: - Heat Index: - Graphs

Location: Havenwood, New Braunfels, TX

Updated: 6:25 AM CDT

Temperature: 69.7 °F Dew Point: 68 °F Humidity: 95% Wind: Calm Pressure: 29.50 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: paradise hills, Wimberley, TX

Updated: 6:29 AM CDT

Temperature: 70.9 °F Dew Point: 49 °F Humidity: 46% Wind: Calm Pressure: 28.38 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: rolling oaks, New Braunfels, TX

Updated: 6:29 AM CDT

Temperature: 69.8 °F Dew Point: 69 °F Humidity: 98% Wind: Calm Pressure: 29.38 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: ParkPlace4RV's, Canyon Lake, TX

Updated: 6:29 AM CDT

Temperature: 68.6 °F Dew Point: 68 °F Humidity: 97% Wind: South at 6.0 mph Pressure: 29.67 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: MesoWest, New Braunfels, TX

Updated: 5:25 AM CDT

Temperature: 69 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: - Graphs

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

Updated: 6:25 AM CDT

Temperature: 69.2 °F Dew Point: 68 °F Humidity: 95% Wind: SW at 2.0 mph Pressure: 29.67 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Eden Ranch Drive, New Braunfels, TX

Updated: 6:26 AM CDT

Temperature: 70.0 °F Dew Point: 68 °F Humidity: 92% Wind: North at - Pressure: 29.61 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: River Road/Lange Road, Wimberley, TX

Updated: 6:18 AM CDT

Temperature: 69.6 °F Dew Point: 68 °F Humidity: 95% Wind: Calm Pressure: 29.58 in Hourly Precipitation: - Heat Index: - Graphs

Location: MesoWest, Lockhart, TX

Updated: 5:20 AM CDT

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

Location: Creekside Drive, Buda, TX

Updated: 6:25 AM CDT

Temperature: 72.5 °F Dew Point: 68 °F Humidity: 87% Wind: North at - Pressure: 29.53 in Hourly Precipitation: - Heat Index: 71 °F Graphs

Location: Sierra West Sect 4, Driftwood, TX

Updated: 6:14 AM CDT

Temperature: 68.7 °F Dew Point: 68 °F Humidity: 96% Wind: South at 1.1 mph Pressure: 29.64 in Hourly Precipitation: - Heat Index: - Graphs

Location: River Chase, New Braunfels, TX

Updated: 6:27 AM CDT

Temperature: 69.1 °F Dew Point: 59 °F Humidity: 70% Wind: SE at 1.1 mph Pressure: 29.49 in Hourly Precipitation: - Heat Index: - Graphs

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

Updated: 6:29 AM CDT

Temperature: 69.3 °F Dew Point: 69 °F Humidity: 99% Wind: Calm Pressure: 29.50 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Skyline Ranch, Wimberley, TX

Updated: 6:29 AM CDT

Temperature: 68.5 °F Dew Point: 67 °F Humidity: 96% Wind: South at 1.1 mph Pressure: 29.74 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Gruene Crossing, New Braunfels, TX

Updated: 6:29 AM CDT

Temperature: 70.5 °F Dew Point: 65 °F Humidity: 82% Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: 70 °F Graphs

Location: Rainbow Ranch, Wimberley, TX

Updated: 6:29 AM CDT

Temperature: 69.6 °F Dew Point: 69 °F Humidity: 99% Wind: SE at 4.5 mph Pressure: 29.52 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Flying Horses Ranch, Buda, TX

Updated: 6:29 AM CDT

Temperature: 69.6 °F Dew Point: 68 °F Humidity: 95% Wind: South at 2.9 mph Pressure: 29.71 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Canyon Falls RV Park, Canyon Lake, TX

Updated: 6:29 AM CDT

Temperature: 70.7 °F Dew Point: 69 °F Humidity: 93% Wind: Calm Pressure: 29.74 in Hourly Precipitation: 0.00 in Heat Index: - 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 
405 am CDT sun Apr 26 2015 


Short term (today through monday)... 
a humid airmass has surged back north across south central Texas 
early this morning on a strengthening southerly lower level flow 
ahead of an upper level trough drifting to the east across the 
Desert Southwest. Another period of active convective weather is 
possible in the short term. The dryline slowly moves to the east 
across south central Texas as the upper level trough moves to the 
Southern Plains on Monday. Moisture convergence along and ahead 
of the dryline will allow for isolated to scattered showers and 
thunderstorms late this morning through Monday. The most active 
period will be overnight into early Monday morning when upward 
motion is maximized by the dryline and trough axis passage along 
with favorable upper level jet energy. Convective available potential energy of 1000 to 3000 j/kg 
and deep layer shear indicate a few strong to severe storms are 
possible. Above average temperatures are expected until a cold 
front passage late on Monday. 


&& 


Long term (monday night through saturday)... 
the front clears south central Texas Monday evening leading to 
breezy northerly winds Monday night into Tuesday. Proximity to the 
upper trough may allow for isolated to scattered showers and 
thunderstorms across northeastern areas of south central Texas 
Monday night. Models showing less rainfall potential for Tuesday 
as the upper level trough continues to the east and have removed 
mention. The remainder of the forecast is rain free as an upper 
level ridge slowly moves over Texas and a much drier airmass 
filters into our area. A cool surface high brings well below 
average temperatures middle week with lows in the middle to upper 40s in 
parts of The Hill Country. The surface high drifts off to the east 
allowing for southerly flow to return leading to a warming trend. 
Another chance of rain is possible in the days beyond this 
forecast. 


&& 


Preliminary point temps/pops... 
Austin Camp Mabry 88 67 85 59 71 / 20 50 30 20 10 
Austin Bergstrom international Airport 86 66 83 58 72 / 20 50 30 20 10 
New Braunfels Muni Airport 87 67 85 59 74 / 20 50 30 10 10 
Burnet Muni Airport 86 62 83 56 70 / 30 50 30 30 10 
del Rio International Airport 90 62 87 60 77 / 10 20 10 - 10 
Georgetown Muni Airport 87 65 83 57 69 / 30 50 30 30 10 
Hondo Muni Airport 88 65 85 59 75 / 20 40 20 - 10 
San Marcos Muni Airport 87 67 84 60 73 / 20 50 30 10 10 
La Grange - Fayette regional 87 69 82 62 73 / 20 40 50 20 10 
San Antonio International Airport 88 68 86 61 74 / 20 40 20 10 10 
Stinson Muni Airport 88 69 85 62 75 / 20 50 30 10 10 


&& 


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


$$ 


Mesoscale/aviation...05 
synoptic/grids...04 






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