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

99°F

37°C

Humidity 34%
Wind Speed Vrbl 3 mph
Barometer 29.91 in (1011.8 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index103°F (39°C)
Last update 21 Jul 3:56 pm CDT
Extended Forecast for

2 Miles NE Kyle TX

Heat Advisory July 22, 12:00pm until July 22, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Tonight

    Tonight: Mostly clear, with a low around 79. South southeast wind around 5 mph becoming calm.

    Low: 79 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 101. Heat index values as high as 109. West wind around 5 mph becoming east in the afternoon.

    High: 101 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 82. East wind around 5 mph becoming calm.

    Low: 82 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 98. Heat index values as high as 105. East northeast wind 5 to 10 mph.

    High: 98 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 79. East wind 5 to 10 mph becoming south after midnight.

    Low: 79 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 97. South wind 5 to 10 mph.

    High: 97 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 78. South southeast wind 5 to 10 mph.

    Low: 78 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 97. South wind 5 to 10 mph.

    High: 97 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 76. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 76 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 79. South southeast wind around 5 mph becoming calm.
Wednesday
Sunny and hot, with a high near 101. Heat index values as high as 109. West wind around 5 mph becoming east in the afternoon.
Wednesday Night
Mostly clear, with a low around 82. East wind around 5 mph becoming calm.
Thursday
Sunny, with a high near 98. Heat index values as high as 105. East northeast wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 79. East wind 5 to 10 mph becoming south after midnight.
Friday
Sunny, with a high near 97. South wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around 78. South southeast wind 5 to 10 mph.
Saturday
Mostly sunny, with a high near 97. South wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 76. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday
Mostly sunny, with a high near 96.
Sunday Night
Mostly clear, with a low around 75.
Monday
Sunny, with a high near 97.
Monday Night
Mostly clear, with a low around 75.
Tuesday
Mostly sunny, with a high near 97.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NE Kyle TX
 30.02°N 97.84°W (Elev. 702 ft)
Last Update:
1:42 pm CDT Jul 21, 2026
Forecast Valid:
4pm CDT Jul 21, 2026-6pm CDT Jul 28, 2026
 
Forecast Discussion
 
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Additional Resources

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