Cold Temperatures for the Eastern U.S.; Lake Effect Snow in the Great Lakes; Heavy Rain in the Pacific Northwest

Cold temperatures will continue across much of the eastern U.S. into today. Heavy lake effect snow continues into today east of Lakes Erie and Ontario. Two Pacific cold fronts will cross the Pacific Northwest early this week followed by another atmospheric river. Heavy rain and gusty winds are expected through midweek, with the potential for renewed urban and river flooding. Read More >

Current conditions at

San Antonio, San Antonio International Airport (KSAT)

Lat: 29.53°NLon: 98.46°WElev: 807ft.

Mostly Cloudy

53°F

12°C

Humidity 38%
Wind Speed SE 8 mph
Barometer 30.27 in (1024.4 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 15 Dec 5:51 pm CST
Extended Forecast for

San Antonio International Airport TX

  • Tonight

    Tonight: Mostly cloudy, with a low around 43. Southeast wind around 5 mph becoming calm.

    Low: 43 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Cloudy, with a high near 60. Calm wind becoming south southeast around 5 mph.

    High: 60 °F

    Cloudy

  • Tuesday Night

    Tuesday Night: A chance of showers, with thunderstorms also possible after 3am.  Patchy fog after 9pm.  Otherwise, cloudy, with a low around 55. Calm wind.  Chance of precipitation is 40%.

    Low: 55 °F

    Chance
    Showers and
    Patchy Fog

  • Wednesday

    Wednesday: A chance of showers and thunderstorms.  Patchy fog before 11am.  Otherwise, cloudy, with a high near 69. Calm wind becoming east southeast around 5 mph.  Chance of precipitation is 30%.

    High: 69 °F

    Chance
    Showers and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 61. Calm wind becoming south southwest around 5 mph after midnight.

    Low: 61 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 78. Southwest wind 5 to 10 mph becoming north in the afternoon.

    High: 78 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 48. North northeast wind 5 to 10 mph.

    Low: 48 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 68. North northeast wind around 5 mph becoming south southeast in the afternoon.

    High: 68 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 52. South wind around 5 mph.

    Low: 52 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 43. Southeast wind around 5 mph becoming calm.
Tuesday
Cloudy, with a high near 60. Calm wind becoming south southeast around 5 mph.
Tuesday Night
A chance of showers, with thunderstorms also possible after 3am. Patchy fog after 9pm. Otherwise, cloudy, with a low around 55. Calm wind. Chance of precipitation is 40%.
Wednesday
A chance of showers and thunderstorms. Patchy fog before 11am. Otherwise, cloudy, with a high near 69. Calm wind becoming east southeast around 5 mph. Chance of precipitation is 30%.
Wednesday Night
Mostly cloudy, with a low around 61. Calm wind becoming south southwest around 5 mph after midnight.
Thursday
Mostly sunny, with a high near 78. Southwest wind 5 to 10 mph becoming north in the afternoon.
Thursday Night
Mostly clear, with a low around 48. North northeast wind 5 to 10 mph.
Friday
Sunny, with a high near 68. North northeast wind around 5 mph becoming south southeast in the afternoon.
Friday Night
Mostly clear, with a low around 52. South wind around 5 mph.
Saturday
Mostly sunny, with a high near 77.
Saturday Night
Mostly clear, with a low around 57.
Sunday
Mostly sunny, with a high near 78.
Sunday Night
Partly cloudy, with a low around 58.
Monday
Partly sunny, with a high near 78.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
San Antonio International Airport TX
 29.55°N 98.46°W (Elev. 751 ft)
5:46 pm CST Dec 15, 2025
6pm CST Dec 15, 2025-6pm CST Dec 22, 2025
 
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