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

Hazardous Weather Conditions

Current conditions at

San Antonio, San Antonio International Airport (KSAT)

Lat: 29.53°NLon: 98.46°WElev: 807ft.

Overcast

70°F

21°C

Humidity 55%
Wind Speed NE 9 mph
Barometer 29.79 in (1007.1 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 20 Feb 12:51 pm CST
Extended Forecast for

San Antonio International Airport TX

Red Flag Warning February 21, 10:00am until February 21, 09:00pm
Click here for hazard details and duration
Red Flag Warning

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 73. Northeast wind around 5 mph.

    High: 73 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 57. East northeast wind around 5 mph becoming calm.

    Low: 57 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 76. North wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 76 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 42. North wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 42 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 65. North northeast wind around 10 mph, with gusts as high as 20 mph.

    High: 65 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 39. North northeast wind 5 to 10 mph.

    Low: 39 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 67. North northeast wind around 5 mph becoming southeast in the afternoon.

    High: 67 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 42. Southeast wind around 5 mph becoming calm after midnight.

    Low: 42 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 74. Light south southwest wind becoming south 10 to 15 mph in the morning. Winds could gust as high as 25 mph.

    High: 74 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 73. Northeast wind around 5 mph.
Tonight
Mostly cloudy, with a low around 57. East northeast wind around 5 mph becoming calm.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 76. North wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph.
Saturday Night
Mostly clear, with a low around 42. North wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday
Sunny, with a high near 65. North northeast wind around 10 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 39. North northeast wind 5 to 10 mph.
Monday
Sunny, with a high near 67. North northeast wind around 5 mph becoming southeast in the afternoon.
Monday Night
Mostly clear, with a low around 42. Southeast wind around 5 mph becoming calm after midnight.
Tuesday
Mostly sunny, with a high near 74. Light south southwest wind becoming south 10 to 15 mph in the morning. Winds could gust as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Mostly sunny, with a high near 86.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
San Antonio International Airport TX
 29.53°N 98.45°W (Elev. 771 ft)
Last Update:
12:44 pm CST Feb 20, 2026
Forecast Valid:
1pm CST Feb 20, 2026-6pm CST Feb 26, 2026
 
Forecast Discussion
 
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Additional Resources

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