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.

Partly Cloudy

67°F

19°C

Humidity 44%
Wind Speed N 10 G 18 mph
Barometer 30.03 in (1015.6 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 21 Feb 8:51 am CST
Extended Forecast for

2 Miles E Castle Hills 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 sunny, with a high near 75. North wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 75 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 42. North wind 10 to 20 mph, with gusts as high as 30 mph.

    Low: 42 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 65. 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 around 5 mph.

    Low: 39 °F

    Mostly Clear

  • Monday

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

    High: 66 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 42. Southeast wind around 5 mph becoming calm in the evening.

    Low: 42 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 73. Light south southwest wind becoming south 10 to 15 mph in the morning. Winds could gust as high as 25 mph.

    High: 73 °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 sunny, with a high near 75. North wind 15 to 20 mph, with gusts as high as 30 mph.
Tonight
Mostly clear, with a low around 42. North wind 10 to 20 mph, with gusts as high as 30 mph.
Sunday
Sunny, with a high near 65. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 39. Northeast wind around 5 mph.
Monday
Sunny, with a high near 66. 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 in the evening.
Tuesday
Sunny, with a high near 73. 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 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:
2 Miles E Castle Hills TX
 29.53°N 98.48°W (Elev. 817 ft)
Last Update:
8:44 am CST Feb 21, 2026
Forecast Valid:
9am CST Feb 21, 2026-6pm CST Feb 27, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation