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

68°F

20°C

Humidity 87%
Wind Speed S 6 mph
Barometer 30.00 in (1015.2 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 14 May 1:56 am CDT
Extended Forecast for

Maxwell TX

  • Overnight

    Overnight: Clear, with a low around 64. South southwest wind around 5 mph.

    Low: 64 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 91. Light south wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 20 mph.

    High: 91 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 67. South southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 67 °F

    Mostly Cloudy

  • Friday

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

    High: 92 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 70. South southeast wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 70 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 91. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 91 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 76. South southeast wind 10 to 20 mph, with gusts as high as 25 mph.

    Low: 76 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 90. South southeast wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 90 °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

Overnight
Clear, with a low around 64. South southwest wind around 5 mph.
Thursday
Sunny, with a high near 91. Light south wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
Mostly cloudy, with a low around 67. South southeast wind around 10 mph, with gusts as high as 20 mph.
Friday
Mostly cloudy, 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 15 mph, with gusts as high as 30 mph.
Saturday
Mostly sunny, with a high near 91. South wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday Night
Mostly cloudy, with a low around 76. South southeast wind 10 to 20 mph, with gusts as high as 25 mph.
Sunday
Mostly cloudy, with a high near 90. South southeast wind 10 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 30 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 89.
Monday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 78.
Tuesday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 89.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 75.
Wednesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 86. Chance of precipitation is 60%.
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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:
2:42 am CDT May 14, 2026
Forecast Valid:
2am CDT May 14, 2026-6pm CDT May 20, 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