Areas of Excessive Rainfall and Extreme Heat; Monitoring Tropical Storm Erin

Heavy to excessive rainfall over the southern Appalachians may bring areas of flooding Tuesday. Hot to extremely hot temperatures are in place through Tuesday across much of the western U.S. and northern New England. Tropical Storm Erin is forecast to become a Major Hurricane by this weekend as it moves across the central Atlantic Ocean. Monitor future forecasts for any East Coast impacts. Read More >

Current conditions at

San Antonio, Stinson Municipal Airport (KSSF)

Lat: 29.34°NLon: 98.47°WElev: 574ft.

A Few Clouds

92°F

33°C

Humidity 41%
Wind Speed SE 7 mph
Barometer 29.86 in (1009.8 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 11 Aug 8:53 pm CDT
Extended Forecast for

3 Miles SSE San Antonio TX

  • Tonight

    Tonight: Mostly clear, with a low around 77. South southeast wind 5 to 10 mph.

    Low: 77 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 99. Heat index values as high as 102. Calm wind becoming east northeast around 5 mph in the afternoon.

    High: 99 °F

    Hot

  • Tuesday Night

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

    Low: 78 °F

    Mostly Clear

  • Wednesday

    Wednesday: A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm.  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.  Chance of precipitation is 20%.

    High: 99 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of thunderstorms before 7pm.  Mostly clear, with a low around 78. South southeast wind 5 to 10 mph.  Chance of precipitation is 10%.

    Low: 78 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Thursday

    Thursday: 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

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 78. South southeast wind 10 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 99. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 99 °F

    Hot

  • Friday Night

    Friday Night: Partly cloudy, with a low around 79. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 79 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 77. South southeast wind 5 to 10 mph.
Tuesday
Sunny and hot, with a high near 99. Heat index values as high as 102. Calm wind becoming east northeast around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 78. East southeast wind 5 to 10 mph becoming south after midnight.
Wednesday
A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. 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. Chance of precipitation is 20%.
Wednesday Night
A slight chance of thunderstorms before 7pm. Mostly clear, with a low around 78. South southeast wind 5 to 10 mph. Chance of precipitation is 10%.
Thursday
Sunny and hot, with a high near 100. South wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 78. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Friday
Mostly sunny and hot, with a high near 99. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Friday Night
Partly cloudy, with a low around 79. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday
Mostly sunny and hot, with a high near 99.
Saturday Night
Partly cloudy, with a low around 77.
Sunday
Mostly sunny and hot, with a high near 100.
Sunday Night
Mostly clear, with a low around 77.
Monday
Mostly sunny and hot, with a high near 100.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE San Antonio TX
 29.41°N 98.48°W (Elev. 646 ft)
8:36 pm CDT Aug 11, 2025
9pm CDT Aug 11, 2025-6pm CDT Aug 18, 2025
 
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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