Heavy Great Lakes Snow through Friday; Extreme Cold and Potential for Major Winter Storm Late Week into this Weekend

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Current conditions at

San Antonio - Kelly Field (KSKF)

Lat: 29.38°NLon: 98.58°WElev: 689ft.

Overcast

58°F

14°C

Humidity 91%
Wind Speed SE 3 mph
Barometer 30.12 in (1019.8 mb)
Dewpoint 56°F (13°C)
Visibility 9.00 mi
Last update 21 Jan 1:55 am CST
Extended Forecast for

San Antonio TX

  • Overnight

    Overnight: A 20 percent chance of showers.  Patchy fog.  Otherwise, cloudy, with a low around 54. Southeast wind around 5 mph becoming calm.

    Low: 54 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Wednesday

    Wednesday: A slight chance of showers between 9am and noon.  Cloudy, then gradually becoming mostly sunny, with a high near 69. Calm wind becoming south southwest around 5 mph.  Chance of precipitation is 20%.

    High: 69 °F

    Slight Chance
    Showers then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 53. Calm wind becoming north northeast around 5 mph after midnight.

    Low: 53 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 72. North northeast wind around 5 mph becoming southeast in the afternoon.

    High: 72 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 59. South southeast wind around 5 mph.

    Low: 59 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 3pm.  Cloudy, with a high near 70. South southeast wind 5 to 10 mph becoming northeast in the afternoon.  Chance of precipitation is 40%.

    High: 70 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Showers.  Low around 35. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 80%.

    Low: 35 °F

    Showers

  • Saturday

    Saturday: Showers.  High near 38. North northeast wind around 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 80%.

    High: 38 °F

    Showers

  • Saturday Night

    Saturday Night: A chance of freezing rain.  Mostly cloudy, with a low around 22. North wind around 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 50%.

    Low: 22 °F

    Chance
    Freezing Rain

Detailed Forecast

Overnight
A 20 percent chance of showers. Patchy fog. Otherwise, cloudy, with a low around 54. Southeast wind around 5 mph becoming calm.
Wednesday
A slight chance of showers between 9am and noon. Cloudy, then gradually becoming mostly sunny, with a high near 69. Calm wind becoming south southwest around 5 mph. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 53. Calm wind becoming north northeast around 5 mph after midnight.
Thursday
Partly sunny, with a high near 72. North northeast wind around 5 mph becoming southeast in the afternoon.
Thursday Night
Mostly cloudy, with a low around 59. South southeast wind around 5 mph.
Friday
A chance of showers, with thunderstorms also possible after 3pm. Cloudy, with a high near 70. South southeast wind 5 to 10 mph becoming northeast in the afternoon. Chance of precipitation is 40%.
Friday Night
Showers. Low around 35. North northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Saturday
Showers. High near 38. North northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Saturday Night
A chance of freezing rain. Mostly cloudy, with a low around 22. North wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Sunday
A slight chance of freezing rain before noon. Partly sunny, with a high near 35. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 20.
Monday
Sunny, with a high near 43.
Monday Night
Mostly clear, with a low around 24.
Tuesday
Sunny, with a high near 49.
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ABOUT THIS FORECAST

 
Point Forecast:
San Antonio TX
 29.46°N 98.53°W (Elev. 699 ft)
12:44 am CST Jan 21, 2026
1am CST Jan 21, 2026-6pm CST Jan 27, 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