National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

San Antonio, Stinson Municipal Airport (KSSF)

Lat: 29.34°NLon: 98.47°WElev: 574ft.

Fair

99°F

37°C

Humidity 33%
Wind Speed SE 10 mph
Barometer 29.87 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index102°F (39°C)
Last update 31 Aug 6:53 pm CDT
Extended Forecast for

3 Miles SSE San Antonio TX

  • Tonight

    Tonight: Mostly clear, with a low around 78. East wind 5 to 10 mph becoming south after midnight.

    Low: 78 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 99. Heat index values as high as 105. Calm wind becoming east southeast around 5 mph in the afternoon.

    High: 99 °F

    Hot

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 78. East wind around 5 mph.

    Low: 78 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy through mid morning, then gradual clearing and hot, with a high near 101. Heat index values as high as 106. South wind around 5 mph.

    High: 101 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 78. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 78 °F

    Mostly Clear

  • Thursday

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

    High: 101 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 78. Southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 78 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny and hot, with a high near 100. South southeast wind 5 to 10 mph.

    High: 100 °F

    Hot

  • Friday Night

    Friday Night: A 20 percent chance of showers before 1am. Mostly clear, with a low around 78. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 78 °F

    Slight Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 78. East wind 5 to 10 mph becoming south after midnight.
Tuesday
Sunny and hot, with a high near 99. Heat index values as high as 105. Calm wind becoming east southeast around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 78. East wind around 5 mph.
Wednesday
Mostly cloudy through mid morning, then gradual clearing and hot, with a high near 101. Heat index values as high as 106. South wind around 5 mph.
Wednesday Night
Mostly clear, with a low around 78. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday
Sunny and hot, with a high near 101. South southeast wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 78. Southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Friday
Mostly sunny and hot, with a high near 100. South southeast wind 5 to 10 mph.
Friday Night
A 20 percent chance of showers before 1am. Mostly clear, with a low around 78. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday
Sunny and hot, with a high near 99.
Saturday Night
Partly cloudy, with a low around 78.
Sunday
Sunny and hot, with a high near 99.
Sunday Night
Partly cloudy, with a low around 78.
Labor Day
Mostly sunny and hot, with a high near 99.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE San Antonio TX
 29.41°N 98.5°W (Elev. 630 ft)
Last Update:
7:42 pm CDT Aug 31, 2026
Forecast Valid:
7pm CDT Aug 31, 2026-6pm CDT Sep 7, 2026
 
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Additional Resources

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Chance of Precipitation