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

Hazardous Weather Conditions

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Fair

83°F

28°C

Humidity 55%
Wind Speed S 8 mph
Barometer 30.00 in (1015.1 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 13 May 7:56 pm CDT
Extended Forecast for

3 Miles ESE Maxwell TX

  • Tonight

    Tonight: Mostly clear, with a low around 64. Calm wind becoming south around 5 mph after midnight.

    Low: 64 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 91. South wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 91 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 67. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 67 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 92. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 92 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 70. South southeast wind 10 to 20 mph, with gusts as high as 30 mph.

    Low: 70 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 90. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 90 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 76. South southeast wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 76 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 87. South southeast wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 87 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 79. South southeast wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 79 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 64. Calm wind becoming south around 5 mph after midnight.
Thursday
Sunny, with a high near 91. South wind 5 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 67. South wind 10 to 15 mph, with gusts as high as 20 mph.
Friday
Partly sunny, with a high near 92. South wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night
Mostly cloudy, with a low around 70. South southeast wind 10 to 20 mph, with gusts as high as 30 mph.
Saturday
Partly sunny, with a high near 90. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday Night
Mostly cloudy, with a low around 76. South southeast wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday
Mostly cloudy, with a high near 87. South southeast wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Mostly cloudy, with a low around 79. South southeast wind 15 to 20 mph, with gusts as high as 30 mph.
Monday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Cloudy, with a high near 86.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 77.
Tuesday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 85.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 74.
Wednesday
Showers and thunderstorms likely. Mostly cloudy, with a high near 82. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Maxwell TX
 29.88°N 97.78°W (Elev. 581 ft)
Last Update:
6:44 pm CDT May 13, 2026
Forecast Valid:
8pm CDT May 13, 2026-6pm CDT May 20, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation