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.

Mostly Cloudy

67°F

19°C

Humidity 53%
Wind Speed E 5 mph
Barometer 29.77 in (1006.7 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 20 Feb 7:51 pm CST
Extended Forecast for

Balcones Heights TX

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

  • Tonight

    Tonight: Mostly cloudy, with a low around 58. East northeast wind around 5 mph becoming north after midnight.

    Low: 58 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 75. North wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 75 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 43. North northeast wind around 15 mph, with gusts as high as 25 mph.

    Low: 43 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 65. North northeast wind around 10 mph, with gusts as high as 25 mph.

    High: 65 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 41. East northeast wind around 5 mph.

    Low: 41 °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 43. Southeast wind around 5 mph.

    Low: 43 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 73. South wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 73 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 55. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 55 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 58. East northeast wind around 5 mph becoming north after midnight.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 75. North wind 5 to 15 mph, with gusts as high as 25 mph.
Saturday Night
Mostly clear, with a low around 43. North northeast wind around 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 25 mph.
Sunday Night
Mostly clear, with a low around 41. East northeast wind around 5 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 43. Southeast wind around 5 mph.
Tuesday
Mostly sunny, with a high near 73. South wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 55. South wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday
Mostly sunny, with a high near 86.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Sunny, with a high near 85.
Thursday Night
Mostly clear, with a low around 54.
Friday
Sunny, with a high near 81.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Balcones Heights TX
 29.48°N 98.56°W (Elev. 784 ft)
Last Update:
5:44 pm CST Feb 20, 2026
Forecast Valid:
8pm CST Feb 20, 2026-6pm CST Feb 27, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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