Tracking Late December Winter Storm Expected to Impact the Northern Plains through the Northeast U.S.

A winter storm system will rapidly intensify over the Midwest on Sunday and track through the Great Lakes on Monday. Periods of heavy snow are anticipated across the Upper Great Lakes late Sunday and continuing into Monday. At least 1/10 inch of ice accumulation is expected from a wintry mix across much of the interior Northeast U.S. starting Sunday afternoon. Read More >

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Fair

71°F

22°C

Humidity 84%
Wind Speed S 16 mph
Barometer 29.91 in (1012.4 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 27 Dec 8:56 pm CST
Extended Forecast for

Wimberley TX

  • Tonight

    Tonight: Increasing clouds, with a low around 64. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 64 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Cloudy, then gradually becoming mostly sunny, with a high near 77. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 77 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: A 20 percent chance of showers before midnight.  Mostly cloudy, with a low around 40. Southwest wind 5 to 10 mph becoming north 15 to 20 mph in the evening. Winds could gust as high as 40 mph.

    Low: 40 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 50. North wind 15 to 20 mph, with gusts as high as 40 mph.

    High: 50 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 35. North wind 5 to 10 mph, with gusts as high as 25 mph.

    Low: 35 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 54. North wind around 5 mph.

    High: 54 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 33. Calm wind.

    Low: 33 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 59. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 59 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 39. South southwest wind around 5 mph becoming calm  in the evening.

    Low: 39 °F

    Partly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 64. South wind around 10 mph, with gusts as high as 20 mph.
Sunday
Cloudy, then gradually becoming mostly sunny, with a high near 77. South wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday Night
A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 40. Southwest wind 5 to 10 mph becoming north 15 to 20 mph in the evening. Winds could gust as high as 40 mph.
Monday
Partly sunny, with a high near 50. North wind 15 to 20 mph, with gusts as high as 40 mph.
Monday Night
Mostly cloudy, with a low around 35. North wind 5 to 10 mph, with gusts as high as 25 mph.
Tuesday
Partly sunny, with a high near 54. North wind around 5 mph.
Tuesday Night
Partly cloudy, with a low around 33. Calm wind.
Wednesday
Mostly sunny, with a high near 59. Calm wind becoming south southwest around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 39. South southwest wind around 5 mph becoming calm in the evening.
New Year's Day
Partly sunny, with a high near 68.
Thursday Night
Partly cloudy, with a low around 47.
Friday
Mostly sunny, with a high near 70.
Friday Night
Partly cloudy, with a low around 51.
Saturday
Mostly sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
Wimberley TX
 29.99°N 98.1°W (Elev. 817 ft)
5:42 pm CST Dec 27, 2025
9pm CST Dec 27, 2025-6pm CST Jan 3, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database