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.

Fair

74°F

23°C

Humidity 91%
Wind Speed Calm
Barometer 30.04 in (1016.3 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 19 Sep 2:56 am CDT
Extended Forecast for

3 Miles NE Kyle TX

  • Overnight

    Overnight: Partly cloudy, with a low around 73. South wind around 5 mph becoming calm.

    Low: 73 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 98. Heat index values as high as 102. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 98 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 73. Southeast wind 5 to 10 mph.

    Low: 73 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly sunny, with a high near 98. Heat index values as high as 103. Calm wind becoming south around 5 mph.

    High: 98 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 74. Southeast wind around 5 mph.

    Low: 74 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 98. Calm wind becoming east southeast around 5 mph in the afternoon.

    High: 98 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 74. East southeast wind around 5 mph becoming calm in the evening.

    Low: 74 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers before 1pm. Sunny, with a high near 97. Calm wind becoming east around 5 mph in the afternoon.

    High: 97 °F

    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 74. East wind 5 to 10 mph becoming light and variable in the evening. Chance of precipitation is 20%.

    Low: 74 °F

    Slight Chance
    T-storms

Detailed Forecast

Overnight
Partly cloudy, with a low around 73. South wind around 5 mph becoming calm.
Saturday
Mostly sunny, with a high near 98. Heat index values as high as 102. Calm wind becoming southeast around 5 mph in the afternoon.
Saturday Night
Increasing clouds, with a low around 73. Southeast wind 5 to 10 mph.
Sunday
Mostly sunny, with a high near 98. Heat index values as high as 103. Calm wind becoming south around 5 mph.
Sunday Night
Partly cloudy, with a low around 74. Southeast wind around 5 mph.
Monday
Sunny, with a high near 98. Calm wind becoming east southeast around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 74. East southeast wind around 5 mph becoming calm in the evening.
Tuesday
A 20 percent chance of showers before 1pm. Sunny, with a high near 97. Calm wind becoming east around 5 mph in the afternoon.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 74. East wind 5 to 10 mph becoming light and variable in the evening. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 97.
Wednesday Night
Partly cloudy, with a low around 74.
Thursday
Mostly sunny, with a high near 96.
Thursday Night
Partly cloudy, with a low around 72.
Friday
Mostly sunny, with a high near 96.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NE Kyle TX
 30.02°N 97.84°W (Elev. 702 ft)
Last Update:
2:44 am CDT Sep 19, 2026
Forecast Valid:
3am CDT Sep 19, 2026-6pm CDT Sep 25, 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