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

Thunderstorms, Heavy Rain and Fire Weather

On Tuesday, isolated strong to severe thunderstorms with damaging winds and hail are possible in parts of the Northeast and Mid-Atlantic and in the southern Plains. Locally heavy rainfall is expected in parts of the Four Corners region and in Texas. Finally, elevated and critical fire weather conditions are likely in the northern High Plains. Read More >

Hazardous Weather Conditions

Current conditions at

San Antonio, Stinson Municipal Airport (KSSF)

Lat: 29.34°NLon: 98.47°WElev: 574ft.

Mostly Cloudy

87°F

31°C

Humidity 65%
Wind Speed S 5 mph
Barometer 29.89 in (1010.8 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index95°F (35°C)
Last update 28 Sep 10:53 am CDT
Extended Forecast for

3 Miles SSE San Antonio TX

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 95. Southeast wind 5 to 10 mph.

    Slight Chance
    T-storms

    High: 95 °F

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 4am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 73. Southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between 1 and 2 inches possible.

    Heavy Rain

    Low: 73 °F

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 90. South southeast wind 5 to 10 mph. New rainfall amounts between a quarter and half of an inch possible.

    Chance
    T-storms

    High: 90 °F

  • Wednesday
    Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 73. Southeast wind 5 to 10 mph.

    Chance
    T-storms

    Low: 73 °F

  • Thursday

    Thursday: Showers and thunderstorms, mainly after 1pm. High near 88. East southeast wind 5 to 10 mph. Chance of precipitation is 80%.

    Chance
    T-storms then
    T-storms

    High: 88 °F

  • Thursday
    Night

    Thursday Night: Showers and thunderstorms likely. Mostly cloudy, with a low around 72. East southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.

    T-storms
    Likely

    Low: 72 °F

  • Friday

    Friday: Showers and thunderstorms. High near 82. East wind around 10 mph. Chance of precipitation is 90%.

    T-storms

    High: 82 °F

  • Friday
    Night

    Friday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. East wind 5 to 10 mph.

    Chance
    T-storms

    Low: 71 °F

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 82. East wind 5 to 10 mph. Chance of precipitation is 80%.

    Chance
    T-storms then
    Showers

    High: 82 °F

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 95. Southeast wind 5 to 10 mph.
Tonight
Showers and thunderstorms likely, mainly before 4am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 73. Southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between 1 and 2 inches possible.
Wednesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 90. South southeast wind 5 to 10 mph. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
A 40 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 73. Southeast wind 5 to 10 mph.
Thursday
Showers and thunderstorms, mainly after 1pm. High near 88. East southeast wind 5 to 10 mph. Chance of precipitation is 80%.
Thursday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 72. East southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Friday
Showers and thunderstorms. High near 82. East wind around 10 mph. Chance of precipitation is 90%.
Friday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. East wind 5 to 10 mph.
Saturday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 82. East wind 5 to 10 mph. Chance of precipitation is 80%.
Saturday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Sunday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.
Sunday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Monday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
3 Miles SSE San Antonio TX
 29.41°N 98.48°W (Elev. 646 ft)
Last Update:
10:50 am CDT Sep 28, 2021
Forecast Valid:
11am CDT Sep 28, 2021-6pm CDT Oct 4, 2021
 
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