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.

Mostly Cloudy

79°F

26°C

Humidity 88%
Wind Speed S 9 mph
Barometer 29.96 in (1013.4 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 30 Jul 3:56 am CDT
Extended Forecast for

Kyle TX

  • Today

    Today: Partly sunny, then gradually becoming sunny, with a high near 98. Heat index values as high as 105. South wind around 10 mph.

    High: 98 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 75. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 75 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, then gradually becoming sunny, with a high near 98. Heat index values as high as 103. South southwest wind 5 to 10 mph.

    High: 98 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 76. South wind 5 to 10 mph.

    Low: 76 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 98. Southwest wind around 5 mph.

    High: 98 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 77. West wind around 5 mph becoming calm.

    Low: 77 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 96. North wind around 5 mph.

    High: 96 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 75. North northeast wind around 5 mph becoming calm in the evening.

    Low: 75 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 97. Calm wind becoming south around 5 mph in the afternoon.

    High: 97 °F

    Sunny

Detailed Forecast

Today
Partly sunny, then gradually becoming sunny, with a high near 98. Heat index values as high as 105. South wind around 10 mph.
Tonight
Partly cloudy, with a low around 75. South wind 5 to 10 mph, with gusts as high as 20 mph.
Friday
Partly sunny, then gradually becoming sunny, with a high near 98. Heat index values as high as 103. South southwest wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around 76. South wind 5 to 10 mph.
Saturday
Mostly sunny, with a high near 98. Southwest wind around 5 mph.
Saturday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 77. West wind around 5 mph becoming calm.
Sunday
Mostly sunny, with a high near 96. North wind around 5 mph.
Sunday Night
Mostly clear, with a low around 75. North northeast wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 97. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 76.
Tuesday
Mostly sunny, with a high near 96.
Tuesday Night
Mostly clear, with a low around 76.
Wednesday
Mostly sunny, with a high near 96.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Kyle TX
 29.99°N 97.89°W (Elev. 791 ft)
Last Update:
4:00 am CDT Jul 30, 2026
Forecast Valid:
4am CDT Jul 30, 2026-6pm CDT Aug 5, 2026
 
Forecast Discussion
 
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Additional Resources

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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