Significant Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold Temperatures Expands Across the East; Severe Storm Threat in the Gulf States Sunday

A significant winter storm is underway, bringing widespread heavy snow, sleet, and freezing rain from the Southern Rockies to New England through Monday. Extremely cold air will follow, prolonging dangerous travel and infrastructure impacts into next week. Severe thunderstorms may produce damaging gusts and tornadoes across the eastern Gulf Coast states Sunday morning and afternoon. Read More >

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Fog/Mist

29°F

-2°C

Humidity 92%
Wind Speed N 18 G 24 mph
Barometer 30.02 in (1017.1 mb)
Dewpoint 27°F (-3°C)
Visibility 3.00 mi
Wind Chill17°F (-8°C)
Last update 25 Jan 2:56 am CST
Extended Forecast for

5 Miles SSE Wimberley TX

Extreme Cold Warning until January 26, 12:00pm
Ice Storm Warning until January 25, 12:00pm
Click here for hazard details and duration
Extreme Cold Warning
Ice Storm Warning
  •  
    Extreme Cold Warning until January 26, 12:00pm
    Ice Storm Warning until January 25, 12:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Overnight

    Low: 19 °F

    Chance Wintry
    Mix

  • Sunday

    Sunday: Cloudy, then gradually becoming mostly sunny, with a high near 28. North northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 28 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 15. North wind around 15 mph, with gusts as high as 25 mph.

    Low: 15 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 34. North wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 34 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 13. North wind around 5 mph becoming calm  in the evening.

    Low: 13 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 45. West wind around 5 mph becoming south in the afternoon.

    High: 45 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 24. Calm wind becoming northwest around 5 mph after midnight.

    Low: 24 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 47. North northwest wind around 5 mph.

    High: 47 °F

    Sunny

Detailed Forecast

Overnight
A chance of freezing rain and sleet. Cloudy, with a low around 19. North northwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. Little or no sleet accumulation expected.
Sunday
Cloudy, then gradually becoming mostly sunny, with a high near 28. North northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Mostly clear, with a low around 15. North wind around 15 mph, with gusts as high as 25 mph.
Monday
Sunny, with a high near 34. North wind 5 to 15 mph, with gusts as high as 25 mph.
Monday Night
Mostly clear, with a low around 13. North wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 45. West wind around 5 mph becoming south in the afternoon.
Tuesday Night
Partly cloudy, with a low around 24. Calm wind becoming northwest around 5 mph after midnight.
Wednesday
Sunny, with a high near 47. North northwest wind around 5 mph.
Wednesday Night
Mostly clear, with a low around 25. North wind around 5 mph becoming calm in the evening.
Thursday
Partly sunny, with a high near 53.
Thursday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 36.
Friday
A 40 percent chance of showers. Mostly cloudy, with a high near 51.
Friday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 29.
Saturday
Mostly sunny, with a high near 44.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Wimberley TX
 29.92°N 98.07°W (Elev. 1047 ft)
3:44 am CST Jan 25, 2026
3am CST Jan 25, 2026-6pm CST Jan 31, 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