Severe Thunderstorms, Excessive Rain and Heat Hazards

A Moderate Risk of severe thunderstorms (level 4 of 5) is in the outlook across portions of the Midwest today. Damaging winds, a few tornadoes and frequent lightning with heavy rainfall are in the forecast. Meanwhile, dangerous heat across the southern Plains into the Great Lakes, mid-Atlantic and Northeast will expand into Friday. Risk for wildfires for the central Rockies and Sacramento Valley. Read More >

Current conditions at

San Antonio, San Antonio International Airport (KSAT)

Lat: 29.53°NLon: 98.46°WElev: 807ft.

Mostly Cloudy

91°F

33°C

Humidity 57%
Wind Speed S 16 mph
Barometer 29.86 in (1009.2 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index100°F (38°C)
Last update 11 Jun 1:51 pm CDT
Extended Forecast for

San Antonio TX

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 93. Heat index values as high as 103. South southeast wind around 10 mph, with gusts as high as 20 mph.

    High: 93 °F

    Mostly Sunny

  • Tonight

    Tonight: A 20 percent chance of showers after 4am.  Mostly cloudy, with a low around 77. Southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 77 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 93. Heat index values as high as 101. Southeast wind 5 to 10 mph.  Chance of precipitation is 30%.

    High: 93 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of thunderstorms before 7pm.  Partly cloudy, with a low around 76. South southeast wind 5 to 10 mph.  Chance of precipitation is 30%.

    Low: 76 °F

    Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 92. Southeast wind 5 to 10 mph.

    High: 92 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 76. Southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 76 °F

    Partly Cloudy

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 93. East southeast wind 5 to 10 mph.

    High: 93 °F

    Partly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm.  Partly cloudy, with a low around 76. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 60%.

    Low: 76 °F

    Showers
    Likely

  • Monday

    Monday: Showers and thunderstorms likely, mainly after 1pm.  Partly sunny, with a high near 90. Southeast wind 5 to 10 mph.  Chance of precipitation is 70%.

    High: 90 °F

    Chance
    T-storms then
    T-storms
    Likely

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 93. Heat index values as high as 103. South southeast wind around 10 mph, with gusts as high as 20 mph.
Tonight
A 20 percent chance of showers after 4am. Mostly cloudy, with a low around 77. Southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 93. Heat index values as high as 101. Southeast wind 5 to 10 mph. Chance of precipitation is 30%.
Friday Night
A chance of thunderstorms before 7pm. Partly cloudy, with a low around 76. South southeast wind 5 to 10 mph. Chance of precipitation is 30%.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92. Southeast wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 76. Southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Sunday
A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 93. East southeast wind 5 to 10 mph.
Sunday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 76. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Monday
Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 90. Southeast wind 5 to 10 mph. Chance of precipitation is 70%.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 73. Chance of precipitation is 60%.
Tuesday
Showers and thunderstorms likely. Mostly cloudy, with a high near 86. Chance of precipitation is 60%.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73.
Wednesday
Partly sunny, with a high near 91.
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ABOUT THIS FORECAST

 
Point Forecast:
San Antonio TX
 29.46°N 98.5°W (Elev. 741 ft)
1:46 pm CDT Jun 11, 2026
2pm CDT Jun 11, 2026-6pm CDT Jun 17, 2026
 
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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