National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Rain From the Central Plains to the Mid-Atlantic; Heat Wave Begins This Weekend

Strong to severe thunderstorms and heavy rain will impact portions of the central Plains into the Upper Midwest and the Mid-Atlantic through the weekend. A stretch of unusually hot and humid weather is expected across portions of the central U.S. and the Southeast beginning this weekend and continuing through next week. The heat may reach dangerous levels, particularly mid to late next week. Read More >

Current conditions at

San Antonio, San Antonio International Airport (KSAT)

Lat: 29.53°NLon: 98.46°WElev: 807ft.

Mostly Cloudy

85°F

29°C

Humidity 59%
Wind Speed SE 15 mph
Barometer 30.05 in (1015.5 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 18 Jul 10:51 pm CDT
Extended Forecast for

3 Miles E San Antonio International Airport TX

  • Tonight

    Tonight: Mostly cloudy, with a low around 76. South southeast wind 5 to 10 mph.

    Low: 76 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 97. Heat index values as high as 102. South wind 5 to 10 mph.

    High: 97 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 77. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 77 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 96. Heat index values as high as 103. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 96 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 77. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 77 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 97. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 97 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 76. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 76 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 98. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 98 °F

    Partly Sunny

  • Tuesday Night

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

    Low: 76 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 76. South southeast wind 5 to 10 mph.
Saturday
Partly sunny, with a high near 97. Heat index values as high as 102. South wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 77. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday
Partly sunny, with a high near 96. Heat index values as high as 103. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Sunday Night
Mostly cloudy, with a low around 77. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Monday
Partly sunny, with a high near 97. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 76. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday
Partly sunny, with a high near 98. South wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 76. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Wednesday
Mostly sunny, with a high near 98.
Wednesday Night
Mostly clear, with a low around 76.
Thursday
Mostly sunny, with a high near 98.
Thursday Night
Partly cloudy, with a low around 77.
Friday
Mostly sunny, with a high near 97.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E San Antonio International Airport TX
 29.53°N 98.43°W (Elev. 741 ft)
Last Update:
7:42 pm CDT Jul 18, 2025
Forecast Valid:
11pm CDT Jul 18, 2025-6pm CDT Jul 25, 2025
 
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