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

74°F

23°C

Humidity 85%
Wind Speed SE 8 mph
Barometer 30.02 in (1014.8 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 12 Oct 1:51 am CDT
Extended Forecast for

San Antonio International Airport TX

  • Overnight

    Overnight: Mostly cloudy, with a low around 72. Southeast wind around 5 mph.

    Low: 72 °F

    Mostly Cloudy

  • Columbus Day

    Columbus Day: A 20 percent chance of showers and thunderstorms after 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 93. Heat index values as high as 102. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 93 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: A 10 percent chance of showers and thunderstorms before 7pm. Increasing clouds, with a low around 76. South southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 76 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Tuesday

    Tuesday: Cloudy, then gradually becoming mostly sunny, with a high near 95. Heat index values as high as 105. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 95 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 76. Southeast wind around 15 mph, with gusts as high as 25 mph.

    Low: 76 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 93. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 93 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 72. Southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 72 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 90. Southeast wind around 10 mph, with gusts as high as 20 mph.

    High: 90 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 67. East wind 5 to 10 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 25 mph.

    Low: 67 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 72. Southeast wind around 5 mph.
Columbus Day
A 20 percent chance of showers and thunderstorms after 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 93. Heat index values as high as 102. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
A 10 percent chance of showers and thunderstorms before 7pm. Increasing clouds, with a low around 76. South southeast wind around 10 mph, with gusts as high as 20 mph.
Tuesday
Cloudy, then gradually becoming mostly sunny, with a high near 95. Heat index values as high as 105. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Partly cloudy, with a low around 76. Southeast wind around 15 mph, with gusts as high as 25 mph.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 93. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
Partly cloudy, with a low around 72. Southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday
Mostly sunny, with a high near 90. Southeast wind around 10 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 67. East wind 5 to 10 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 25 mph.
Friday
Mostly sunny, with a high near 80.
Friday Night
Mostly cloudy, with a low around 60.
Saturday
Mostly sunny, with a high near 75.
Saturday Night
Partly cloudy, with a low around 56.
Sunday
Mostly sunny, with a high near 77.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
San Antonio International Airport TX
 29.53°N 98.45°W (Elev. 771 ft)
Last Update:
1:24 am CDT Oct 12, 2026
Forecast Valid:
2am CDT Oct 12, 2026-6pm CDT Oct 18, 2026
 
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