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

63°F

17°C

Humidity 84%
Wind Speed NW 3 mph
Barometer 29.93 in (1011.9 mb)
Dewpoint 58°F (14°C)
Visibility 7.00 mi
Last update 21 Feb 5:51 am CST
Extended Forecast for

Alamo Heights TX

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

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 75. North wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 75 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Mostly clear, with a low around 42. North wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 42 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 65. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 65 °F

    Sunny

  • Sunday Night

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

    Low: 39 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 66. Northeast wind around 5 mph becoming east southeast in the afternoon.

    High: 66 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 42. East southeast wind around 5 mph becoming south southwest after midnight.

    Low: 42 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 74. South wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 74 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 54. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 54 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 85. South southwest wind around 10 mph, with gusts as high as 20 mph.

    High: 85 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 75. North wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Tonight
Mostly clear, with a low around 42. North wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday
Sunny, with a high near 65. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 39. Northeast wind 5 to 10 mph.
Monday
Sunny, with a high near 66. Northeast wind around 5 mph becoming east southeast in the afternoon.
Monday Night
Mostly clear, with a low around 42. East southeast wind around 5 mph becoming south southwest after midnight.
Tuesday
Sunny, with a high near 74. South wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 54. South wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday
Mostly sunny, with a high near 85. South southwest wind around 10 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Sunny, with a high near 87.
Thursday Night
Clear, with a low around 54.
Friday
Sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Alamo Heights TX
 29.48°N 98.45°W (Elev. 797 ft)
Last Update:
5:46 am CST Feb 21, 2026
Forecast Valid:
6am CST Feb 21, 2026-6pm CST Feb 27, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation