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

Granby-Grand County Airport (KGNB)

Lat: 40.09°NLon: 105.92°WElev: 8207ft.

Snow

31°F

-1°C

Humidity 88%
Wind Speed W 8 mph
Barometer 29.86 in
Dewpoint 28°F (-2°C)
Visibility 1.00 mi
Wind Chill24°F (-4°C)
Last update 27 Dec 5:15 pm MST
Extended Forecast for

3 Miles NNW LONG'S PEAK CO

Winter Weather Advisory until December 28, 11:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until December 28, 11:00am

    NOW until 11:00am Sun

    Winter Weather Advisory

  • This Afternoon

    High: 29 °F

    Heavy Snow
    and Patchy
    Blowing Snow

  • Tonight

    Tonight: Snow. The snow could be heavy at times.  Patchy blowing snow. Low around 6. Wind chill values as low as -10. Breezy, with a west wind 18 to 22 mph, with gusts as high as 37 mph.  Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.

    Low: 6 °F

    Heavy Snow
    and Patchy
    Blowing Snow

  • Sunday

    Sunday: Snow, mainly before 11am.  Widespread blowing snow, mainly between 10am and 11am. Steady temperature around 9. Wind chill values as low as -16. Windy, with a west wind 23 to 29 mph, with gusts as high as 43 mph.  Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: 9 °F

    Snow and
    Blowing Snow
    then Slight
    Chance Snow
    and Windy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 6. Wind chill values as low as -13. Breezy, with a west wind around 22 mph, with gusts as high as 32 mph.

    Low: 6 °F

    Mostly Clear
    and Breezy

  • Monday

    Monday: Sunny, with a high near 27. Breezy, with a west wind 10 to 20 mph, with gusts as high as 31 mph.

    High: 27 °F

    Sunny and
    Breezy then
    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 17. Breezy.

    Low: 17 °F

    Clear and
    Breezy

  • Tuesday

    Tuesday: Sunny, with a high near 34. Breezy.

    High: 34 °F

    Sunny and
    Breezy then
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 21. Breezy.

    Low: 21 °F

    Mostly Clear
    and Breezy

Detailed Forecast

This Afternoon
Snow likely. The snow could be heavy at times. Patchy blowing snow. Mostly cloudy, with a steady temperature around 29. Breezy, with a west wind around 18 mph, with gusts as high as 34 mph. Chance of precipitation is 70%. Total daytime snow accumulation of 2 to 4 inches possible.
Tonight
Snow. The snow could be heavy at times. Patchy blowing snow. Low around 6. Wind chill values as low as -10. Breezy, with a west wind 18 to 22 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.
Sunday
Snow, mainly before 11am. Widespread blowing snow, mainly between 10am and 11am. Steady temperature around 9. Wind chill values as low as -16. Windy, with a west wind 23 to 29 mph, with gusts as high as 43 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Sunday Night
Mostly clear, with a low around 6. Wind chill values as low as -13. Breezy, with a west wind around 22 mph, with gusts as high as 32 mph.
Monday
Sunny, with a high near 27. Breezy, with a west wind 10 to 20 mph, with gusts as high as 31 mph.
Monday Night
Clear, with a low around 17. Breezy.
Tuesday
Sunny, with a high near 34. Breezy.
Tuesday Night
Mostly clear, with a low around 21. Breezy.
Wednesday
Sunny, with a high near 37. Windy.
Wednesday Night
Partly cloudy, with a low around 26. Windy.
New Year's Day
Mostly sunny, with a high near 39. Breezy.
Thursday Night
A slight chance of snow. Partly cloudy, with a low around 28. Windy.
Friday
A chance of snow. Partly sunny, with a high near 35. Windy.
Friday Night
A chance of snow. Mostly cloudy, with a low around 22. Windy.
Saturday
A chance of snow. Partly sunny, with a high near 29. Windy.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW LONG'S PEAK CO
 40.31°N 105.65°W (Elev. 10000 ft)
5:06 pm MST Dec 27, 2025
5pm MST Dec 27, 2025-6pm MST 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