Tracking Late December Winter Storm Expected to Impact the Northern Plains through the Northeast U.S.

A winter storm system will rapidly intensify over the Midwest on Sunday and track through the Great Lakes on Monday. Periods of heavy snow are anticipated across the Upper Great Lakes late Sunday and continuing into Monday. At least 1/10 inch of ice accumulation is expected from a wintry mix across much of the interior Northeast U.S. starting Sunday afternoon. Read More >

Current conditions at

San Antonio, San Antonio International Airport (KSAT)

Lat: 29.53°NLon: 98.46°WElev: 807ft.

Mostly Cloudy

79°F

26°C

Humidity 60%
Wind Speed S 12 mph
Barometer 29.87 in (1009.8 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 27 Dec 3:51 pm CST
Extended Forecast for

San Antonio TX

  • Tonight

    Tonight: Increasing clouds, with a low around 67. Southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 67 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Cloudy, then gradually becoming mostly sunny, with a high near 79. South wind 5 to 10 mph becoming west northwest in the afternoon.

    High: 79 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: A 20 percent chance of showers before midnight.  Mostly cloudy, with a low around 45. Breezy, with a light north wind becoming north northeast 20 to 25 mph in the evening. Winds could gust as high as 45 mph.

    Low: 45 °F

    Slight Chance
    Showers then
    Mostly Cloudy
    and Breezy

  • Monday

    Monday: Mostly cloudy, with a high near 52. Breezy, with a north northeast wind 20 to 25 mph decreasing to 15 to 20 mph in the afternoon. Winds could gust as high as 45 mph.

    High: 52 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 41. North wind around 10 mph, with gusts as high as 20 mph.

    Low: 41 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 55. North wind around 5 mph becoming calm  in the afternoon.

    High: 55 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 38. Calm wind.

    Low: 38 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 61. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 61 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 43. South wind around 5 mph becoming calm  in the evening.

    Low: 43 °F

    Partly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 67. Southeast wind around 10 mph, with gusts as high as 20 mph.
Sunday
Cloudy, then gradually becoming mostly sunny, with a high near 79. South wind 5 to 10 mph becoming west northwest in the afternoon.
Sunday Night
A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 45. Breezy, with a light north wind becoming north northeast 20 to 25 mph in the evening. Winds could gust as high as 45 mph.
Monday
Mostly cloudy, with a high near 52. Breezy, with a north northeast wind 20 to 25 mph decreasing to 15 to 20 mph in the afternoon. Winds could gust as high as 45 mph.
Monday Night
Mostly cloudy, with a low around 41. North wind around 10 mph, with gusts as high as 20 mph.
Tuesday
Partly sunny, with a high near 55. North wind around 5 mph becoming calm in the afternoon.
Tuesday Night
Partly cloudy, with a low around 38. Calm wind.
Wednesday
Mostly sunny, with a high near 61. Calm wind becoming south southwest around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 43. South wind around 5 mph becoming calm in the evening.
New Year's Day
Partly sunny, with a high near 69.
Thursday Night
Partly cloudy, with a low around 50.
Friday
Mostly sunny, with a high near 73.
Friday Night
Partly cloudy, with a low around 54.
Saturday
Mostly sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
San Antonio TX
 29.44°N 98.5°W (Elev. 650 ft)
4:32 pm CST Dec 27, 2025
4pm CST Dec 27, 2025-6pm CST Jan 3, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database