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

76°F

24°C

Humidity 94%
Wind Speed SE 3 mph
Barometer 30.10 in (1018.2 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index76°F (24°C)
Last update 9 Sep 5:56 am CDT
Extended Forecast for

Kyle TX

  • Today

    Today: Mostly sunny, with a high near 98. Heat index values as high as 105. Calm wind becoming east southeast around 5 mph in the afternoon.

    High: 98 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 74. Southeast wind 5 to 10 mph becoming light south after midnight.

    Low: 74 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 97. Heat index values as high as 102. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 97 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 74. Southeast wind around 5 mph.

    Low: 74 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny and hot, with a high near 99. South southwest wind 5 to 10 mph.

    High: 99 °F

    Hot

  • Friday Night

    Friday Night: Partly cloudy, with a low around 75. South wind 5 to 10 mph.

    Low: 75 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny and hot, with a high near 100. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 100 °F

    Hot

  • Saturday Night

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

    Low: 75 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny and hot, with a high near 99. South wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 99 °F

    Hot

Detailed Forecast

Today
Mostly sunny, with a high near 98. Heat index values as high as 105. Calm wind becoming east southeast around 5 mph in the afternoon.
Tonight
Partly cloudy, with a low around 74. Southeast wind 5 to 10 mph becoming light south after midnight.
Thursday
Mostly sunny, with a high near 97. Heat index values as high as 102. Calm wind becoming south southeast around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 74. Southeast wind around 5 mph.
Friday
Mostly sunny and hot, with a high near 99. South southwest wind 5 to 10 mph.
Friday Night
Partly cloudy, with a low around 75. South wind 5 to 10 mph.
Saturday
Sunny and hot, with a high near 100. South wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Mostly clear, with a low around 75. South wind around 10 mph, with gusts as high as 20 mph.
Sunday
Mostly sunny and hot, with a high near 99. South wind 5 to 15 mph, with gusts as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 75.
Monday
Mostly sunny and hot, with a high near 99.
Monday Night
Mostly clear, with a low around 74.
Tuesday
Mostly sunny, with a high near 98.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Kyle TX
 30.02°N 97.89°W (Elev. 797 ft)
Last Update:
5:32 am CDT Sep 9, 2026
Forecast Valid:
6am CDT Sep 9, 2026-6pm CDT Sep 15, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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