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Areas of Excessive Rainfall and Severe Thunderstorms Today

Heavy to excessive rainfall from thunderstorms may bring areas of flooding today across parts of Texas, the Southeast U.S., and the lower Ohio Valley. Severe thunderstorms with large hail, damaging wind gusts, and a couple tornadoes are expected this afternoon and evening across parts of west and southwest Texas. Read More >

Hazardous Weather Conditions

Current conditions at

San Antonio, Stinson Municipal Airport (KSSF)

Lat: 29.34°NLon: 98.47°WElev: 574ft.

Mostly Cloudy

83°F

28°C

Humidity 65%
Wind Speed SE 12 G 20 mph
Barometer 29.81 in (1008.4 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 26 May 1:53 pm CDT
Extended Forecast for

San Antonio, Stinson Municipal Airport TX

Flood Watch May 26, 04:00pm until May 27, 08:00am
Click here for hazard details and duration
Flood Watch

  • This Afternoon

    This Afternoon: A 40 percent chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 86. Southeast wind around 10 mph, with gusts as high as 20 mph.

    High: 86 °F

    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Low around 70. East wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    Low: 70 °F

    Showers

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before 7am, then a chance of showers and thunderstorms after 7am. Partly sunny, with a high near 83. East southeast wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Showers
    Likely then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 70. East wind 5 to 10 mph becoming light east northeast in the evening.

    Low: 70 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Partly sunny, with a high near 87. East wind around 5 mph.

    High: 87 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 73. East wind around 5 mph becoming calm in the evening.

    Low: 73 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 90. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 90 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 74. East southeast wind around 5 mph.

    Low: 74 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 89. South wind around 5 mph.

    High: 89 °F

    Partly Sunny

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 86. Southeast wind around 10 mph, with gusts as high as 20 mph.
Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Low around 70. East wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Wednesday
Showers likely and possibly a thunderstorm before 7am, then a chance of showers and thunderstorms after 7am. Partly sunny, with a high near 83. East southeast wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Increasing clouds, with a low around 70. East wind 5 to 10 mph becoming light east northeast in the evening.
Thursday
Partly sunny, with a high near 87. East wind around 5 mph.
Thursday Night
Partly cloudy, with a low around 73. East wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 90. Calm wind becoming southeast around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 74. East southeast wind around 5 mph.
Saturday
Partly sunny, with a high near 89. South wind around 5 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 74.
Sunday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 89.
Sunday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Monday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
San Antonio, Stinson Municipal Airport TX
 29.32°N 98.47°W (Elev. 581 ft)
Last Update:
1:44 pm CDT May 26, 2026
Forecast Valid:
2pm CDT May 26, 2026-6pm CDT Jun 1, 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