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

94°F

34°C

Humidity 43%
Wind Speed SW 13 G 22 mph
Barometer 30.04 in (1016.1 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 24 Aug 11:56 am CDT
Extended Forecast for

Kyle TX

Heat Advisory August 24, 11:59am until August 26, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 24, 11:59am until August 26, 07:00pm

    NOW until 7:00pm Wed

    Heat Advisory

  • Today

    High: 103 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 75. South southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, then gradually becoming sunny and hot, with a high near 102. South southwest wind 5 to 10 mph.

    High: 102 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 75. South southeast wind around 10 mph.

    Low: 75 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 101. South southwest wind around 5 mph.

    High: 101 °F

    Hot

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 77. South southeast wind around 5 mph.

    Low: 77 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 100. South southwest wind around 5 mph becoming southeast in the afternoon.

    High: 100 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 75. Southeast wind around 5 mph becoming calm in the evening.

    Low: 75 °F

    Slight Chance
    T-storms

Detailed Forecast

Today
Sunny and hot, with a high near 103. South wind around 10 mph.
Tonight
Mostly clear, with a low around 75. South southeast wind around 10 mph, with gusts as high as 20 mph.
Tuesday
Partly sunny, then gradually becoming sunny and hot, with a high near 102. South southwest wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 75. South southeast wind around 10 mph.
Wednesday
Sunny and hot, with a high near 101. South southwest wind around 5 mph.
Wednesday Night
Partly cloudy, with a low around 77. South southeast wind around 5 mph.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 100. South southwest wind around 5 mph becoming southeast in the afternoon.
Thursday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 75. Southeast wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny and hot, with a high near 99. South southwest wind around 5 mph becoming southeast in the afternoon.
Friday Night
Mostly clear, with a low around 75.
Saturday
Sunny, with a high near 98.
Saturday Night
Mostly clear, with a low around 75.
Sunday
Sunny, with a high near 98.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Kyle TX
 30.02°N 97.89°W (Elev. 797 ft)
Last Update:
11:32 am CDT Aug 24, 2026
Forecast Valid:
11am CDT Aug 24, 2026-6pm CDT Aug 30, 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