Prolonged Extreme Cold; Eastern U.S. Winter Storm

Another Arctic blast will surge south across the northern Plains tonight, crossing the Midwest and reaching the Gulf Coast Friday night. Dangerously cold temperatures will persist across the eastern U.S. into early February. There is increasing confidence for significant heavy snow across much of the Southern Appalachians, Carolinas, and southern Mid-Atlantic Friday into Sunday. Read More >

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Fair

59°F

15°C

Humidity 54%
Wind Speed W 3 mph
Barometer 30.08 in (1018.7 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Last update 29 Jan 6:56 pm CST
Extended Forecast for

Wimberley TX

Cold Weather Advisory January 31, 03:00am until January 31, 10:00am
Click here for hazard details and duration
Cold Weather Advisory
  • Tonight

    Tonight: Mostly cloudy, with a low around 35. North wind around 10 mph, with gusts as high as 25 mph.

    Low: 35 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy through mid morning, then gradual clearing, with a high near 56. North wind 5 to 10 mph, with gusts as high as 25 mph.

    High: 56 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 27. Light north wind becoming north northeast 5 to 10 mph after midnight. Winds could gust as high as 20 mph.

    Low: 27 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 42. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 42 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 20. Northeast wind around 5 mph becoming calm  in the evening.

    Low: 20 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 55. Calm wind becoming south around 5 mph in the afternoon.

    High: 55 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 34. South wind around 5 mph becoming calm  in the evening.

    Low: 34 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 62. Calm wind becoming south around 5 mph in the afternoon.

    High: 62 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 48. South southeast wind around 5 mph.

    Low: 48 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 35. North wind around 10 mph, with gusts as high as 25 mph.
Friday
Mostly cloudy through mid morning, then gradual clearing, with a high near 56. North wind 5 to 10 mph, with gusts as high as 25 mph.
Friday Night
Mostly clear, with a low around 27. Light north wind becoming north northeast 5 to 10 mph after midnight. Winds could gust as high as 20 mph.
Saturday
Sunny, with a high near 42. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Clear, with a low around 20. Northeast wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 55. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 34. South wind around 5 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 62. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 48. South southeast wind around 5 mph.
Tuesday
Mostly cloudy, with a high near 70.
Tuesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 48.
Wednesday
A 30 percent chance of showers. Mostly cloudy, with a high near 62.
Wednesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 37.
Thursday
Mostly sunny, with a high near 59.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Wimberley TX
 29.99°N 98.1°W (Elev. 817 ft)
5:44 pm CST Jan 29, 2026
7pm CST Jan 29, 2026-6pm CST Feb 5, 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