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

Hazardous Weather Conditions

Current conditions at

San Antonio, San Antonio International Airport (KSAT)

Lat: 29.53°NLon: 98.46°WElev: 807ft.

Mostly Cloudy

100°F

38°C

Humidity 28%
Wind Speed Calm
Barometer 30.01 in (1014.3 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index101°F (38°C)
Last update 2 Aug 4:51 pm CDT
Extended Forecast for

San Antonio TX

  • This Afternoon

    This Afternoon: A 40 percent chance of showers and thunderstorms. Partly sunny and hot, with a high near 103. Northeast wind around 5 mph.

    High: 103 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 77. Northeast wind around 5 mph becoming calm in the evening.

    Low: 77 °F

    Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: Sunny and hot, with a high near 101. Heat index values as high as 107. Calm wind becoming east around 5 mph.

    High: 101 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 79. East southeast wind around 5 mph becoming northeast in the evening.

    Low: 79 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 100. Southeast wind around 5 mph.

    High: 100 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 77. East wind 5 to 10 mph.

    Low: 77 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 98. Calm wind becoming east around 5 mph in the afternoon.

    High: 98 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 75. East wind 5 to 10 mph becoming south southeast after midnight.

    Low: 75 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 97. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 97 °F

    Sunny

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms. Partly sunny and hot, with a high near 103. Northeast wind around 5 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 77. Northeast wind around 5 mph becoming calm in the evening.
Sunday
Sunny and hot, with a high near 101. Heat index values as high as 107. Calm wind becoming east around 5 mph.
Sunday Night
Mostly clear, with a low around 79. East southeast wind around 5 mph becoming northeast in the evening.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 100. Southeast wind around 5 mph.
Monday Night
Partly cloudy, with a low around 77. East wind 5 to 10 mph.
Tuesday
Mostly sunny, with a high near 98. Calm wind becoming east around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 75. East wind 5 to 10 mph becoming south southeast after midnight.
Wednesday
Sunny, with a high near 97. Calm wind becoming southeast around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 76.
Thursday
Sunny and hot, with a high near 99.
Thursday Night
Mostly clear, with a low around 77.
Friday
Sunny and hot, with a high near 99.
Friday Night
Mostly clear, with a low around 76.
Saturday
Sunny, with a high near 98.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
San Antonio TX
 29.46°N 98.5°W (Elev. 741 ft)
Last Update:
5:18 pm CDT Aug 2, 2025
Forecast Valid:
5pm CDT Aug 2, 2025-6pm CDT Aug 9, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation