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.

Partly Cloudy

83°F

28°C

Humidity 61%
Wind Speed W 8 mph
Barometer 29.87 in (1009.6 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 9 May 11:51 am CDT
Extended Forecast for

San Antonio TX

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 88. Calm wind becoming south around 5 mph.

    High: 88 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 71. Southeast wind around 5 mph becoming calm in the evening.

    Low: 71 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 91. Calm wind becoming south southeast around 5 mph in the morning.

    High: 91 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm before 1am, then a slight chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Low around 68. Southeast wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%.

    Low: 68 °F

    Showers

  • Monday

    Monday: A 30 percent chance of showers before 7am. Mostly sunny, with a high near 84. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 84 °F

    Chance
    Showers then
    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 66. North northeast wind 5 to 10 mph.

    Low: 66 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 85. North northeast wind around 5 mph becoming east in the afternoon.

    High: 85 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 68. East southeast wind around 5 mph becoming calm in the evening.

    Low: 68 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 88. Calm wind becoming east southeast around 5 mph in the afternoon.

    High: 88 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 88. Calm wind becoming south around 5 mph.
Tonight
Mostly clear, with a low around 71. Southeast wind around 5 mph becoming calm in the evening.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 91. Calm wind becoming south southeast around 5 mph in the morning.
Sunday Night
Showers and possibly a thunderstorm before 1am, then a slight chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Low around 68. Southeast wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%.
Monday
A 30 percent chance of showers before 7am. Mostly sunny, with a high near 84. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
Partly cloudy, with a low around 66. North northeast wind 5 to 10 mph.
Tuesday
Mostly sunny, with a high near 85. North northeast wind around 5 mph becoming east in the afternoon.
Tuesday Night
Partly cloudy, with a low around 68. East southeast wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 88. Calm wind becoming east southeast around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 68.
Thursday
Mostly sunny, with a high near 90.
Thursday Night
Partly cloudy, with a low around 69.
Friday
Mostly sunny, with a high near 91.
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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:
12:44 pm CDT May 9, 2026
Forecast Valid:
12pm CDT May 9, 2026-6pm CDT May 15, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation