National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Tracking a Couple of Storm Systems Across the Country

Showers, along with a few strong to severe thunderstorms, are expected from the Great Lakes, New England and southward into the Ohio and Tennessee Valleys. In the wake of this system, a stronger storm is expected to track from the Pacific Northwest, Plains and through the Eastern U.S. this weekend. Strong winds, showers and a larger drop in temperatures are expected this weekend into Monday. Read More >

Hazardous Weather Conditions

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Fair and Breezy

64°F

18°C

Humidity 30%
Wind Speed N 23 G 29 mph
Barometer 30.33 in (1026.3 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 9 Nov 8:56 am CST
Extended Forecast for

4 Miles WNW San Marcos TX

Wind Advisory November 9, 09:02am until November 9, 06:00pm
Red Flag Warning until November 9, 09:00pm
Click here for hazard details and duration
Wind Advisory
Red Flag Warning
  •  
    Wind Advisory November 9, 09:02am until November 9, 06:00pm
    Red Flag Warning until November 9, 09:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Today

    High: 69 °F

    Sunny and
    Breezy then
    Sunny

  • Tonight

    Tonight: Clear, with a low around 36. North wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 36 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 61. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 61 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 31. Calm wind becoming south southwest around 5 mph after midnight.

    Low: 31 °F

    Clear

  • Veterans Day

    Veterans Day: Sunny, with a high near 72. South southwest wind 5 to 15 mph, with gusts as high as 30 mph.

    High: 72 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 53. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 53 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 82. South wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 82 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 58. South wind around 5 mph.

    Low: 58 °F

    Mostly Clear

Detailed Forecast

Today
Sunny, with a high near 69. Breezy, with a north wind 15 to 25 mph, with gusts as high as 35 mph.
Tonight
Clear, with a low around 36. North wind 10 to 15 mph, with gusts as high as 30 mph.
Monday
Sunny, with a high near 61. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
Clear, with a low around 31. Calm wind becoming south southwest around 5 mph after midnight.
Veterans Day
Sunny, with a high near 72. South southwest wind 5 to 15 mph, with gusts as high as 30 mph.
Tuesday Night
Clear, with a low around 53. South wind around 10 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 82. South wind 5 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
Mostly clear, with a low around 58. South wind around 5 mph.
Thursday
Sunny, with a high near 83. South wind 5 to 10 mph, with gusts as high as 25 mph.
Thursday Night
Mostly clear, with a low around 59.
Friday
Sunny, with a high near 83.
Friday Night
Partly cloudy, with a low around 61.
Saturday
Mostly sunny, with a high near 82.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW San Marcos TX
 29.9°N 97.99°W (Elev. 850 ft)
Last Update:
7:42 am CST Nov 9, 2025
Forecast Valid:
9am CST Nov 9, 2025-6pm CST Nov 15, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation