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

90°F

32°C

Humidity 28%
Wind Speed NE 9 mph
Barometer 29.92 in (1012.4 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 7 Oct 4:56 pm CDT
Extended Forecast for

Maxwell TX

  • Tonight

    Tonight: Clear, with a low around 64. North wind around 5 mph.

    Low: 64 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 91. North wind 5 to 10 mph.

    High: 91 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 67. East northeast wind around 5 mph becoming calm in the evening.

    Low: 67 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 89. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 89 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 66. East northeast wind around 5 mph becoming calm in the evening.

    Low: 66 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 91. North wind around 5 mph.

    High: 91 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 65. East northeast wind around 5 mph becoming calm.

    Low: 65 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 90. Light south wind increasing to 5 to 10 mph in the afternoon.

    High: 90 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 70. Southeast wind around 5 mph becoming calm in the evening.

    Low: 70 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 64. North wind around 5 mph.
Thursday
Sunny, with a high near 91. North wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 67. East northeast wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 89. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 66. East northeast wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 91. North wind around 5 mph.
Saturday Night
Mostly clear, with a low around 65. East northeast wind around 5 mph becoming calm.
Sunday
Sunny, with a high near 90. Light south wind increasing to 5 to 10 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 70. Southeast wind around 5 mph becoming calm in the evening.
Columbus Day
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 91.
Monday Night
Partly cloudy, with a low around 73.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 92.
Tuesday Night
Partly cloudy, with a low around 73.
Wednesday
A 20 percent chance of showers. Mostly sunny, with a high near 92.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Maxwell TX
 29.9°N 97.84°W (Elev. 597 ft)
Last Update:
2:46 pm CDT Oct 7, 2026
Forecast Valid:
5pm CDT Oct 7, 2026-6pm CDT Oct 14, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation