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

San Antonio, San Antonio International Airport (KSAT)

Lat: 29.53°NLon: 98.46°WElev: 807ft.

Mostly Cloudy

80°F

27°C

Humidity 52%
Wind Speed SE 5 mph
Barometer 30.04 in (1015.2 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 31 Jul 1:51 am CDT
Extended Forecast for

San Antonio TXSimilar City Names

  • Overnight

    Overnight: Partly cloudy, with a low around 75. Calm wind.

    Low: 75 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny and hot, with a high near 101. Calm wind becoming east southeast around 5 mph in the afternoon.

    High: 101 °F

    Hot

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 78. Southeast wind around 5 mph becoming south southwest after midnight.

    Low: 78 °F

    Partly Cloudy

  • Friday

    Friday: A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Sunny and hot, with a high near 101. Heat index values as high as 105. Calm wind becoming east southeast around 5 mph in the afternoon. Chance of precipitation is 30%.

    High: 101 °F

    Mostly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly clear, with a low around 78. East southeast wind around 5 mph. Chance of precipitation is 20%.

    Low: 78 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Saturday

    Saturday: A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Sunny and hot, with a high near 99. Calm wind becoming east southeast around 5 mph in the afternoon. Chance of precipitation is 30%.

    High: 99 °F

    Sunny then
    Chance
    Showers

  • Saturday Night

    Saturday Night: A slight chance of thunderstorms before 7pm. Partly cloudy, with a low around 79. East southeast wind around 5 mph. Chance of precipitation is 10%.

    Low: 79 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: Sunny and hot, with a high near 100. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 100 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 79. South southeast wind around 5 mph.

    Low: 79 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 75. Calm wind.
Thursday
Mostly sunny and hot, with a high near 101. Calm wind becoming east southeast around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 78. Southeast wind around 5 mph becoming south southwest after midnight.
Friday
A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Sunny and hot, with a high near 101. Heat index values as high as 105. Calm wind becoming east southeast around 5 mph in the afternoon. Chance of precipitation is 30%.
Friday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly clear, with a low around 78. East southeast wind around 5 mph. Chance of precipitation is 20%.
Saturday
A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Sunny and hot, with a high near 99. Calm wind becoming east southeast around 5 mph in the afternoon. Chance of precipitation is 30%.
Saturday Night
A slight chance of thunderstorms before 7pm. Partly cloudy, with a low around 79. East southeast wind around 5 mph. Chance of precipitation is 10%.
Sunday
Sunny and hot, with a high near 100. Calm wind becoming southeast around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 79. South southeast wind around 5 mph.
Monday
Mostly sunny, with a high near 98.
Monday Night
Partly cloudy, with a low around 77.
Tuesday
Sunny, with a high near 98.
Tuesday Night
Mostly clear, with a low around 77.
Wednesday
Mostly sunny, with a high near 98.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
San Antonio TXSimilar City Names
 29.46°N 98.5°W (Elev. 741 ft)
Last Update:
1:42 am CDT Jul 31, 2025
Forecast Valid:
2am CDT Jul 31, 2025-6pm CDT Aug 6, 2025
 
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Additional Resources

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Chance of Precipitation