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.

Overcast

76°F

24°C

Humidity 91%
Wind Speed SW 3 mph
Barometer 30.15 in (1019.8 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index76°F (24°C)
Last update 16 Aug 3:56 am CDT
Extended Forecast for

Kyle TX

  • Today

    Today: Sunny and hot, with a high near 101. Heat index values as high as 104. South wind around 5 mph.

    High: 101 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 75. South southeast wind 5 to 10 mph.

    Low: 75 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 99. Heat index values as high as 102. Southwest wind around 5 mph becoming south southeast in the afternoon.

    High: 99 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 75. South southeast wind around 5 mph.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 99. South southwest wind around 5 mph.

    High: 99 °F

    Hot

  • Tuesday Night

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

    Low: 76 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny and hot, with a high near 100. South southwest wind 5 to 10 mph.

    High: 100 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 75. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 75 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny and hot, with a high near 101. South wind 5 to 10 mph.

    High: 101 °F

    Hot

Detailed Forecast

Today
Sunny and hot, with a high near 101. Heat index values as high as 104. South wind around 5 mph.
Tonight
Mostly clear, with a low around 75. South southeast wind 5 to 10 mph.
Monday
Sunny and hot, with a high near 99. Heat index values as high as 102. Southwest wind around 5 mph becoming south southeast in the afternoon.
Monday Night
Mostly clear, with a low around 75. South southeast wind around 5 mph.
Tuesday
Sunny and hot, with a high near 99. South southwest wind around 5 mph.
Tuesday Night
Partly cloudy, with a low around 76. South wind 5 to 10 mph.
Wednesday
Sunny and hot, with a high near 100. South southwest wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 75. South wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday
Mostly sunny and hot, with a high near 101. South wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 76.
Friday
Sunny and hot, with a high near 101.
Friday Night
Mostly clear, with a low around 76.
Saturday
Mostly sunny and hot, with a high near 101.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Kyle TX
 30°N 97.86°W (Elev. 699 ft)
Last Update:
2:42 am CDT Aug 16, 2026
Forecast Valid:
4am CDT Aug 16, 2026-6pm CDT Aug 22, 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