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

70°F

21°C

Humidity 76%
Wind Speed SE 7 mph
Barometer 30.15 in (1019.4 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 27 Oct 12:51 am CDT
Extended Forecast for

San Antonio TX

  • Overnight

    Overnight: Mostly cloudy, with a low around 66. East wind around 5 mph.

    Low: 66 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after 10am. Cloudy, then gradually becoming mostly sunny, with a high near 80. East southeast wind 5 to 10 mph.

    High: 80 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 65. East wind around 5 mph becoming calm.

    Low: 65 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly between 1pm and 4pm. Cloudy through mid morning, then gradual clearing, with a high near 84. East northeast wind around 5 mph becoming southeast in the afternoon.

    High: 84 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 10 percent chance of showers before 7pm. Mostly cloudy, with a low around 68. Southeast wind around 5 mph.

    Low: 68 °F

    Slight Chance
    Showers then
    Cloudy

  • Thursday

    Thursday: Showers likely, with thunderstorms also possible after 1pm. Cloudy, with a high near 78. East wind 5 to 10 mph. Chance of precipitation is 70%.

    High: 78 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A 20 percent chance of showers. Cloudy, with a low around 65. East southeast wind 5 to 10 mph.

    Low: 65 °F

    Slight Chance
    Showers

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, with a high near 77. East wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 77 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 65. East wind around 5 mph becoming calm in the evening.

    Low: 65 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 66. East wind around 5 mph.
Tuesday
A 40 percent chance of showers and thunderstorms after 10am. Cloudy, then gradually becoming mostly sunny, with a high near 80. East southeast wind 5 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 65. East wind around 5 mph becoming calm.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly between 1pm and 4pm. Cloudy through mid morning, then gradual clearing, with a high near 84. East northeast wind around 5 mph becoming southeast in the afternoon.
Wednesday Night
A 10 percent chance of showers before 7pm. Mostly cloudy, with a low around 68. Southeast wind around 5 mph.
Thursday
Showers likely, with thunderstorms also possible after 1pm. Cloudy, with a high near 78. East wind 5 to 10 mph. Chance of precipitation is 70%.
Thursday Night
A 20 percent chance of showers. Cloudy, with a low around 65. East southeast wind 5 to 10 mph.
Friday
A 50 percent chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, with a high near 77. East wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 65. East wind around 5 mph becoming calm in the evening.
Saturday
Partly sunny, with a high near 82.
Saturday Night
Partly cloudy, with a low around 66.
Sunday
Partly sunny, with a high near 84.
Sunday Night
Partly cloudy, with a low around 68.
Monday
Partly sunny, with a high near 85.
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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:
1:24 am CDT Oct 27, 2026
Forecast Valid:
1am CDT Oct 27, 2026-6pm CST Nov 2, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation