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

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Fair

70°F

21°C

Humidity 73%
Wind Speed S 3 mph
Barometer 30.07 in (1017.7 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 11 Nov 5:56 pm CST
Extended Forecast for

Maxwell TX

  • Tonight

    Tonight: Mostly clear, with a low around 55. Light north wind increasing to 5 to 10 mph after midnight.

    Low: 55 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 75. North wind 5 to 10 mph becoming light north northeast in the afternoon.

    High: 75 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 48. Calm wind becoming west northwest around 5 mph.

    Low: 48 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 76. Northwest wind around 5 mph becoming calm.

    High: 76 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 49. South southeast wind around 5 mph becoming calm.

    Low: 49 °F

    Mostly Clear

  • Saturday

    Saturday: A 40 percent chance of showers after noon. Partly sunny, with a high near 71. Light east wind becoming east southeast 10 to 15 mph in the morning. Winds could gust as high as 25 mph.

    High: 71 °F

    Partly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers, mainly after midnight. Mostly cloudy, with a low around 55. East southeast wind 5 to 10 mph, with gusts as high as 25 mph.

    Low: 55 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after noon. Mostly cloudy, with a high near 72. East southeast wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.

    High: 72 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A 30 percent chance of showers, mainly before midnight. Mostly cloudy, with a low around 54. Light northeast wind becoming north 10 to 15 mph after midnight. Winds could gust as high as 20 mph.

    Low: 54 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 55. Light north wind increasing to 5 to 10 mph after midnight.
Thursday
Sunny, with a high near 75. North wind 5 to 10 mph becoming light north northeast in the afternoon.
Thursday Night
Clear, with a low around 48. Calm wind becoming west northwest around 5 mph.
Friday
Sunny, with a high near 76. Northwest wind around 5 mph becoming calm.
Friday Night
Mostly clear, with a low around 49. South southeast wind around 5 mph becoming calm.
Saturday
A 40 percent chance of showers after noon. Partly sunny, with a high near 71. Light east wind becoming east southeast 10 to 15 mph in the morning. Winds could gust as high as 25 mph.
Saturday Night
A 30 percent chance of showers, mainly after midnight. Mostly cloudy, with a low around 55. East southeast wind 5 to 10 mph, with gusts as high as 25 mph.
Sunday
A chance of showers, with thunderstorms also possible after noon. Mostly cloudy, with a high near 72. East southeast wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Sunday Night
A 30 percent chance of showers, mainly before midnight. Mostly cloudy, with a low around 54. Light northeast wind becoming north 10 to 15 mph after midnight. Winds could gust as high as 20 mph.
Monday
Partly sunny, with a high near 63.
Monday Night
Partly cloudy, with a low around 48.
Tuesday
Mostly sunny, with a high near 62.
Tuesday Night
Partly cloudy, with a low around 49.
Wednesday
Partly sunny, with a high near 68.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Maxwell TX
 29.88°N 97.83°W (Elev. 571 ft)
Last Update:
5:44 pm CST Nov 11, 2026
Forecast Valid:
6pm CST Nov 11, 2026-6pm CST Nov 18, 2026
 
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