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

77°F

25°C

Humidity 96%
Wind Speed S 6 mph
Barometer 30.07 in (1017.6 mb)
Dewpoint 76°F (24°C)
Visibility 9.00 mi
Heat Index78°F (26°C)
Last update 10 Aug 7:56 am CDT
Extended Forecast for

Kyle TX

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 4pm. Mostly cloudy, then gradually becoming sunny, with a high near 96. Heat index values as high as 106. South wind 5 to 10 mph.

    High: 96 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 76. South southeast wind 5 to 10 mph.

    Low: 76 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 98. Heat index values as high as 105. South wind 5 to 10 mph.

    High: 98 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 76. South southeast wind 10 to 15 mph.

    Low: 76 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Sunny and hot, with a high near 99. South wind 10 to 15 mph.

    High: 99 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 75. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 75 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 99. South wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 99 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 75. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 75 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 98. South wind 5 to 10 mph.

    High: 98 °F

    Mostly Sunny

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 4pm. Mostly cloudy, then gradually becoming sunny, with a high near 96. Heat index values as high as 106. South wind 5 to 10 mph.
Tonight
Partly cloudy, with a low around 76. South southeast wind 5 to 10 mph.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 98. Heat index values as high as 105. South wind 5 to 10 mph.
Tuesday Night
Increasing clouds, with a low around 76. South southeast wind 10 to 15 mph.
Wednesday
Sunny and hot, with a high near 99. South wind 10 to 15 mph.
Wednesday Night
Mostly clear, with a low around 75. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday
Sunny and hot, with a high near 99. South wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 75. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Friday
Mostly sunny, with a high near 98. South wind 5 to 10 mph.
Friday Night
Partly cloudy, with a low around 75.
Saturday
Mostly sunny, with a high near 97.
Saturday Night
Mostly clear, with a low around 73.
Sunday
Mostly sunny, with a high near 98.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Kyle TX
 30.02°N 97.89°W (Elev. 797 ft)
Last Update:
6:42 am CDT Aug 10, 2026
Forecast Valid:
8am CDT Aug 10, 2026-6pm CDT Aug 16, 2026
 
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Additional Resources

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Chance of Precipitation