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.

Overcast

73°F

23°C

Humidity 90%
Wind Speed SE 7 mph
Barometer 29.85 in (1009.2 mb)
Dewpoint 70°F (21°C)
Visibility 9.00 mi
Last update 8 May 11:51 pm CDT
Extended Forecast for

San Antonio International Airport TX

  • Overnight

    Overnight: A 20 percent chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 70. East wind around 5 mph becoming calm.

    Low: 70 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A slight chance of showers and thunderstorms before 7am, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 87. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 87 °F

    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: A 10 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 70. Southeast wind around 5 mph becoming calm in the evening.

    Low: 70 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 90. South wind around 5 mph.

    High: 90 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 1am, then a slight chance of showers and thunderstorms between 1am and 4am, then a slight chance of showers after 4am. Partly cloudy, with a low around 69. Southeast wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 60%.

    Low: 69 °F

    Showers
    Likely

  • Monday

    Monday: Mostly sunny, with a high near 85. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 85 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 64. Northeast wind 5 to 10 mph.

    Low: 64 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 85. Northeast wind around 5 mph becoming southeast in the afternoon.

    High: 85 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 65. Southeast wind around 5 mph.

    Low: 65 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 70. East wind around 5 mph becoming calm.
Saturday
A slight chance of showers and thunderstorms before 7am, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 87. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 20%.
Saturday Night
A 10 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 70. Southeast wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 90. South wind around 5 mph.
Sunday Night
Showers likely and possibly a thunderstorm before 1am, then a slight chance of showers and thunderstorms between 1am and 4am, then a slight chance of showers after 4am. Partly cloudy, with a low around 69. Southeast wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 85. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 64. Northeast wind 5 to 10 mph.
Tuesday
Mostly sunny, with a high near 85. Northeast wind around 5 mph becoming southeast in the afternoon.
Tuesday Night
Partly cloudy, with a low around 65. Southeast wind around 5 mph.
Wednesday
Mostly sunny, with a high near 88.
Wednesday Night
Mostly clear, with a low around 66.
Thursday
Partly sunny, with a high near 89.
Thursday Night
Partly cloudy, with a low around 69.
Friday
Partly sunny, with a high near 89.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
San Antonio International Airport TX
 29.55°N 98.46°W (Elev. 751 ft)
Last Update:
11:32 pm CDT May 8, 2026
Forecast Valid:
12am CDT May 9, 2026-6pm CDT May 15, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation