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, San Antonio International Airport (KSAT)

Lat: 29.53°NLon: 98.46°WElev: 807ft.

Overcast

66°F

19°C

Humidity 78%
Wind Speed SW 8 mph
Barometer 30.15 in (1019.6 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 21 Jan 11:51 am CST
Extended Forecast for

3 Miles WNW Shavano Park TX

  • This Afternoon

    This Afternoon: Mostly cloudy early, then becoming sunny, with a high near 70. West wind around 5 mph.

    High: 70 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 49. Calm wind becoming north around 5 mph after midnight.

    Low: 49 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 72. North wind around 5 mph becoming south southeast in the afternoon.

    High: 72 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 58. South southeast wind around 5 mph.

    Low: 58 °F

    Increasing
    Clouds

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 3pm.  Cloudy, with a high near 67. South southeast wind 5 to 10 mph becoming east northeast in the afternoon.  Chance of precipitation is 50%.

    High: 67 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Friday Night

    Friday Night: Showers.  Low around 37. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.  Chance of precipitation is 80%.

    Low: 37 °F

    Showers

  • Saturday

    Saturday: Showers.  High near 39. North northeast wind around 15 mph, with gusts as high as 30 mph.  Chance of precipitation is 90%.

    High: 39 °F

    Showers

  • Saturday Night

    Saturday Night: Freezing rain likely, mainly before midnight.  Mostly cloudy, with a low around 19. North wind around 15 mph, with gusts as high as 30 mph.  Chance of precipitation is 60%.

    Low: 19 °F

    Freezing Rain
    Likely

  • Sunday

    Sunday: A slight chance of freezing rain before noon.  Partly sunny, with a high near 33. North wind around 15 mph, with gusts as high as 30 mph.  Chance of precipitation is 20%.

    High: 33 °F

    Slight Chance
    Freezing Rain
    then Mostly
    Sunny

Detailed Forecast

This Afternoon
Mostly cloudy early, then becoming sunny, with a high near 70. West wind around 5 mph.
Tonight
Partly cloudy, with a low around 49. Calm wind becoming north around 5 mph after midnight.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 72. North wind around 5 mph becoming south southeast in the afternoon.
Thursday Night
Increasing clouds, with a low around 58. South southeast wind around 5 mph.
Friday
A chance of showers, with thunderstorms also possible after 3pm. Cloudy, with a high near 67. South southeast wind 5 to 10 mph becoming east northeast in the afternoon. Chance of precipitation is 50%.
Friday Night
Showers. Low around 37. North northeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Saturday
Showers. High near 39. North northeast wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%.
Saturday Night
Freezing rain likely, mainly before midnight. Mostly cloudy, with a low around 19. North wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
Sunday
A slight chance of freezing rain before noon. Partly sunny, with a high near 33. North wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 17.
Monday
Sunny, with a high near 41.
Monday Night
Mostly clear, with a low around 20.
Tuesday
Sunny, with a high near 48.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Shavano Park TX
 29.59°N 98.61°W (Elev. 1066 ft)
12:22 pm CST Jan 21, 2026
12pm 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