Severe Thunderstorms and Excessive Rainfall in the Central U.S.; Heat Building in the Western U.S.

A cold front pressing east across the central U.S. will be the focus for areas of strong to severe thunderstorms and excessive rainfall through this weekend. Strong to severe thunderstorms my bring damaging winds, hail, and a few tornadoes while excessive rainfall may lead to areas of flooding. Heat will build across the western U.S. with heat-related watches, warnings, and advisories issued. Read More >

Hazardous Weather Conditions

Current conditions at

San Antonio, San Antonio International Airport (KSAT)

Lat: 29.53°NLon: 98.46°WElev: 807ft.

A Few Clouds

82°F

28°C

Humidity 74%
Wind Speed SE 15 mph
Barometer 30.00 in (1013.8 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 12 Jul 10:51 pm CDT
Extended Forecast for

2 Miles E Castle Hills TX

Flood Watch July 12, 11:46pm until July 13, 07:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch July 12, 11:46pm until July 13, 07:00pm

    NOW until 7:00pm Sun

    Flood Watch

  • Tonight

    Low: 76 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Some of the storms could produce heavy rainfall.  Cloudy, then gradually becoming mostly sunny, with a high near 94. Heat index values as high as 102. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 94 °F

    Heavy Rain

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before 1am. Some of the storms could produce heavy rainfall.  Mostly cloudy, with a low around 76. Southeast wind 5 to 10 mph.

    Low: 76 °F

    Heavy Rain

  • Monday

    Monday: Partly sunny, with a high near 95. Heat index values as high as 100. South southeast wind 5 to 10 mph.

    High: 95 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 77. South southeast wind 5 to 10 mph.

    Low: 77 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 95. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 95 °F

    Partly Sunny

  • Tuesday Night

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

    Low: 76 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 96. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 96 °F

    Mostly Sunny

Detailed Forecast

Tonight
Mostly cloudy, with a low around 76. South southeast wind 5 to 10 mph.
Sunday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Some of the storms could produce heavy rainfall. Cloudy, then gradually becoming mostly sunny, with a high near 94. Heat index values as high as 102. South wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms before 1am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 76. Southeast wind 5 to 10 mph.
Monday
Partly sunny, with a high near 95. Heat index values as high as 100. South southeast wind 5 to 10 mph.
Monday Night
Mostly cloudy, with a low around 77. South southeast wind 5 to 10 mph.
Tuesday
Partly sunny, with a high near 95. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly cloudy, with a low around 76. Southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Wednesday
Mostly sunny, with a high near 96. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 74. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday
Mostly sunny, with a high near 96.
Thursday Night
Mostly clear, with a low around 74.
Friday
Mostly sunny, with a high near 97.
Friday Night
Partly cloudy, with a low around 75.
Saturday
Mostly sunny, with a high near 97.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles E Castle Hills TX
 29.53°N 98.48°W (Elev. 817 ft)
11:42 pm CDT Jul 12, 2025
11pm CDT Jul 12, 2025-6pm CDT Jul 19, 2025
 
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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