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

SIARD (SIAN2)

Lat: 40.39433°NLon: 117.62567°WElev: 4600.0ft.

NA

30°F

-1°C

Humidity 68%
Wind Speed NNE 7 MPH
Barometer NA
Dewpoint 21°F (-6°C)
Visibility NA
Wind Chill23°F (-5°C)
Last update 27 Dec 09:38 PM PST
Extended Forecast for

20 Miles ESE Unionville NV

  • Tonight

    Tonight: Partly cloudy, with a low around 21. North wind around 15 mph.

    Low: 21 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 28. Northeast wind 5 to 10 mph.

    High: 28 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 22. Northeast wind 10 to 15 mph.

    Low: 22 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 30. Northeast wind 5 to 10 mph.

    High: 30 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 25. Northeast wind around 5 mph.

    Low: 25 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 34. Northeast wind 5 to 10 mph becoming north in the afternoon.

    High: 34 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 38.

    High: 38 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 21. North wind around 15 mph.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 28. Northeast wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 22. Northeast wind 10 to 15 mph.
Monday
Sunny, with a high near 30. Northeast wind 5 to 10 mph.
Monday Night
Clear, with a low around 25. Northeast wind around 5 mph.
Tuesday
Sunny, with a high near 34. Northeast wind 5 to 10 mph becoming north in the afternoon.
Tuesday Night
Mostly clear, with a low around 27.
Wednesday
Mostly sunny, with a high near 38.
Wednesday Night
Mostly cloudy, with a low around 30.
New Year's Day
A slight chance of snow after 10am. Mostly cloudy, with a high near 38.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 32.
Friday
A chance of snow. Partly sunny, with a high near 37. Breezy.
Friday Night
A slight chance of snow. Partly cloudy, with a low around 28. Breezy.
Saturday
Partly sunny, with a high near 35.
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ABOUT THIS FORECAST

 
Point Forecast:
20 Miles ESE Unionville NV
 40.27°N 117.79°W (Elev. 7533 ft)
9:15 pm PST Dec 27, 2025
10pm PST Dec 27, 2025-6pm PST Jan 3, 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