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

77°F

25°C

Humidity 85%
Wind Speed SE 3 mph
Barometer 30.02 in (1015.5 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 1 Sep 1:56 am CDT
Extended Forecast for

3 Miles NE Kyle TX

  • Overnight

    Overnight: Mostly clear, with a low around 75. South southwest wind around 5 mph.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm. Increasing clouds, with a high near 98. Heat index values as high as 104. Calm wind becoming east around 5 mph.

    High: 98 °F

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 76. East northeast wind around 5 mph becoming calm in the evening.

    Low: 76 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly between 1pm and 4pm. Mostly sunny, with a high near 98. Heat index values as high as 103. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 98 °F

    Mostly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms, then a chance of showers after 10pm. Partly cloudy, with a low around 75. Southeast wind 5 to 10 mph. Chance of precipitation is 30%.

    Low: 75 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 97. South wind 5 to 10 mph.

    High: 97 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 75. South wind 5 to 10 mph. Chance of precipitation is 30%.

    Low: 75 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 96. South wind around 5 mph.

    High: 96 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 75. Southeast wind 5 to 10 mph.

    Low: 75 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 75. South southwest wind around 5 mph.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Increasing clouds, with a high near 98. Heat index values as high as 104. Calm wind becoming east around 5 mph.
Tuesday Night
Partly cloudy, with a low around 76. East northeast wind around 5 mph becoming calm in the evening.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly between 1pm and 4pm. Mostly sunny, with a high near 98. Heat index values as high as 103. Calm wind becoming southwest around 5 mph in the afternoon.
Wednesday Night
A slight chance of showers and thunderstorms, then a chance of showers after 10pm. Partly cloudy, with a low around 75. Southeast wind 5 to 10 mph. Chance of precipitation is 30%.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 97. South wind 5 to 10 mph.
Thursday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 75. South wind 5 to 10 mph. Chance of precipitation is 30%.
Friday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 96. South wind around 5 mph.
Friday Night
Mostly clear, with a low around 75. Southeast wind 5 to 10 mph.
Saturday
Mostly sunny, with a high near 96.
Saturday Night
Mostly clear, with a low around 75.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 96.
Sunday Night
Mostly clear, with a low around 74.
Labor Day
Mostly sunny, with a high near 97.
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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:
1:36 am CDT Sep 1, 2026
Forecast Valid:
2am CDT Sep 1, 2026-6pm CDT Sep 7, 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