Thunderstorms and Widespread Rainfall Across the Southern Plains

Isolated severe thunderstorms and widespread showers may produce flash flooding across the Southern Plains through Thursday. Numerous instances of flash flooding are expected in south-central Texas, including portions of the Hill Country; and an additional area across eastern Oklahoma into the Ozarks on Thursday. Heavy rainfall and mountain snow will return to southern California on Thursday. Read More >

Current conditions at

San Antonio, San Antonio International Airport (KSAT)

Lat: 29.53°NLon: 98.46°WElev: 807ft.

Overcast

74°F

23°C

Humidity 88%
Wind Speed SE 10 mph
Barometer 30.01 in (1014.3 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 20 Nov 4:51 am CST
Extended Forecast for

San Antonio International Airport TX

Flood Watch November 20, 05:16am until November 21, 06:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch November 20, 05:16am until November 21, 06:00am

    NOW until 6:00am Fri

    Flood Watch

  • Overnight

    Low: 71 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 3pm.  Mostly cloudy, with a high near 82. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 40%.

    High: 82 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms.  Increasing clouds, with a low around 68. East wind 5 to 10 mph becoming south southwest after midnight.  New rainfall amounts between a quarter and half of an inch possible.

    Low: 68 °F

    Chance
    T-storms

  • Friday

    Friday: A chance of showers and thunderstorms before noon, then a slight chance of showers.  Cloudy, then gradually becoming mostly sunny, with a high near 80. Southwest wind around 5 mph becoming northeast in the afternoon.  Chance of precipitation is 50%.

    High: 80 °F

    Chance
    Showers then
    Slight Chance
    Showers

  • Friday Night

    Friday Night: A slight chance of showers, then a chance of showers and thunderstorms after 9pm.  Partly cloudy, with a low around 65. Northeast wind around 5 mph.  Chance of precipitation is 30%.

    Low: 65 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A 40 percent chance of showers.  Mostly cloudy, with a high near 78. East northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 78 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 40 percent chance of showers.  Mostly cloudy, with a low around 66. East wind 5 to 10 mph.

    Low: 66 °F

    Chance
    Showers

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 78. South southeast wind around 10 mph, with gusts as high as 20 mph.

    High: 78 °F

    Chance
    Showers

Detailed Forecast

Overnight
A 20 percent chance of showers. Mostly cloudy, with a low around 71. South southeast wind around 10 mph.
Thursday
A chance of showers, with thunderstorms also possible after 3pm. Mostly cloudy, with a high near 82. South southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Thursday Night
A 50 percent chance of showers and thunderstorms. Increasing clouds, with a low around 68. East wind 5 to 10 mph becoming south southwest after midnight. New rainfall amounts between a quarter and half of an inch possible.
Friday
A chance of showers and thunderstorms before noon, then a slight chance of showers. Cloudy, then gradually becoming mostly sunny, with a high near 80. Southwest wind around 5 mph becoming northeast in the afternoon. Chance of precipitation is 50%.
Friday Night
A slight chance of showers, then a chance of showers and thunderstorms after 9pm. Partly cloudy, with a low around 65. Northeast wind around 5 mph. Chance of precipitation is 30%.
Saturday
A 40 percent chance of showers. Mostly cloudy, with a high near 78. East northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 66. East wind 5 to 10 mph.
Sunday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 78. South southeast wind around 10 mph, with gusts as high as 20 mph.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64. South wind around 10 mph, with gusts as high as 20 mph.
Monday
Showers likely and possibly a thunderstorm before noon, then a chance of showers. Partly sunny, with a high near 75. Chance of precipitation is 60%.
Monday Night
Mostly clear, with a low around 52.
Tuesday
Sunny, with a high near 77.
Tuesday Night
Mostly clear, with a low around 54.
Wednesday
Mostly sunny, with a high near 72.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
San Antonio International Airport TX
 29.53°N 98.48°W (Elev. 817 ft)
5:02 am CST Nov 20, 2025
5am CST Nov 20, 2025-6pm CST Nov 26, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database