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

57°F

14°C

Humidity 90%
Wind Speed SE 7 mph
Barometer 30.18 in (1021.0 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 20 Jan 11:51 pm CST
Extended Forecast for

3 Miles WNW Shavano Park TX

  • Overnight

    Overnight: A 20 percent chance of showers.  Patchy fog after 1am.  Otherwise, cloudy, with a low around 52. South southeast wind around 5 mph.

    Low: 52 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Wednesday

    Wednesday: A slight chance of showers between 9am and noon.  Patchy fog before 8am.  Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 69. Southwest wind around 5 mph becoming calm  in the afternoon.  Chance of precipitation is 20%.

    High: 69 °F

    Slight Chance
    Showers and
    Patchy Fog
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 50. Calm wind becoming north around 5 mph after midnight.

    Low: 50 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 71. North northeast wind around 5 mph becoming south southeast in the afternoon.

    High: 71 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 57. Southeast wind around 5 mph.

    Low: 57 °F

    Mostly Cloudy

  • 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 northeast in the afternoon. Winds could gust as high as 20 mph.  Chance of precipitation is 50%.

    High: 67 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Friday Night

    Friday Night: Showers.  Low around 31. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 90%.

    Low: 31 °F

    Showers

  • Saturday

    Saturday: Showers.  High near 36. North wind around 15 mph, with gusts as high as 30 mph.  Chance of precipitation is 80%.

    High: 36 °F

    Showers

  • Saturday Night

    Saturday Night: A chance of freezing rain.  Mostly cloudy, with a low around 19. North wind around 15 mph, with gusts as high as 30 mph.  Chance of precipitation is 50%.

    Low: 19 °F

    Chance
    Freezing Rain

Detailed Forecast

Overnight
A 20 percent chance of showers. Patchy fog after 1am. Otherwise, cloudy, with a low around 52. South southeast wind around 5 mph.
Wednesday
A slight chance of showers between 9am and noon. Patchy fog before 8am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 69. Southwest wind around 5 mph becoming calm in the afternoon. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 50. Calm wind becoming north around 5 mph after midnight.
Thursday
Partly sunny, with a high near 71. North northeast wind around 5 mph becoming south southeast in the afternoon.
Thursday Night
Mostly cloudy, with a low around 57. 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 northeast in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 50%.
Friday Night
Showers. Low around 31. North northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Saturday
Showers. High near 36. North wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.
Saturday Night
A chance of freezing rain. Mostly cloudy, with a low around 19. North wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.
Sunday
A slight chance of freezing rain before noon. Partly sunny, with a high near 33. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 18.
Monday
Sunny, with a high near 41.
Monday Night
Mostly clear, with a low around 21.
Tuesday
Sunny, with a high near 49.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Shavano Park TX
 29.59°N 98.61°W (Elev. 1066 ft)
12:02 am CST Jan 21, 2026
12am 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