Flooding Threat in Parts of Texas and New Mexico; Heat in the Western U.S.

Heavy to excessive rainfall across parts of central Texas into southern New Mexico may bring areas of flooding into this evening. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Hot temperatures are forecast for the far southwest U.S., parts of California, and the interior northwest U.S. this week. Read More >

Current conditions at

San Antonio, San Antonio International Airport (KSAT)

Lat: 29.53°NLon: 98.46°WElev: 807ft.

Mostly Cloudy

94°F

34°C

Humidity 43%
Wind Speed NE 8 mph
Barometer 29.93 in (1011.4 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 31 Aug 3:51 pm CDT
Extended Forecast for

San Antonio TX

Flood Watch until September 1, 12:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch until September 1, 12:00pm

    NOW until 12:00pm Mon

    Flood Watch

  • This Afternoon

    High: 95 °F

    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 7pm, then showers likely and possibly a thunderstorm between 7pm and 10pm, then a chance of showers and thunderstorms after 10pm.  Mostly cloudy, with a low around 76. Northeast wind 5 to 10 mph.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 76 °F

    Showers
    Likely then
    Chance
    T-storms

  • Labor Day

    Labor Day: A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm.  Mostly cloudy, with a high near 91. Northeast wind around 5 mph.  Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 91 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am.  Mostly cloudy, with a low around 75. East northeast wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 30%.

    Low: 75 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 95. Northeast wind around 5 mph.

    High: 95 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 74. East northeast wind around 5 mph becoming calm.

    Low: 74 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 96. North northwest wind around 5 mph.

    High: 96 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 72. East northeast wind around 5 mph becoming calm  in the evening.

    Low: 72 °F

    Mostly Clear

Detailed Forecast

This Afternoon
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 95. Heat index values as high as 101. East wind around 10 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms before 7pm, then showers likely and possibly a thunderstorm between 7pm and 10pm, then a chance of showers and thunderstorms after 10pm. Mostly cloudy, with a low around 76. Northeast wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Labor Day
A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 91. Northeast wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly cloudy, with a low around 75. East northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 95. Northeast wind around 5 mph.
Tuesday Night
Mostly clear, with a low around 74. East northeast wind around 5 mph becoming calm.
Wednesday
Sunny, with a high near 96. North northwest wind around 5 mph.
Wednesday Night
Mostly clear, with a low around 72. East northeast wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 97. West wind around 5 mph becoming southeast in the afternoon.
Thursday Night
Partly cloudy, with a low around 74.
Friday
Partly sunny, with a high near 96.
Friday Night
Mostly cloudy, with a low around 74.
Saturday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 91.
Saturday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
San Antonio TX
 29.46°N 98.5°W (Elev. 741 ft)
3:50 pm CDT Aug 31, 2025
4pm CDT Aug 31, 2025-6pm CDT Sep 7, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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