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.

Overcast

17°F

-8°C

Humidity 75%
Wind Speed SW 8 mph
Barometer 29.97 in
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill7°F (-14°C)
Last update 28 Dec 3:55 am MST
Extended Forecast for

2 Miles WSW LONG'S PEAK CO

Winter Weather Advisory December 28, 04:18am until December 28, 11:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory December 28, 04:18am until December 28, 11:00am

    NOW until 11:00am Sun

    Winter Weather Advisory

  • Overnight

    Low: 2 °F

    Snow and
    Blowing Snow

  • Sunday

    Sunday: Snow likely, mainly before 9am.  Widespread blowing snow, mainly before 5pm. Mostly cloudy, then gradually becoming sunny and cold, with a high near 6. Wind chill values as low as -30. Windy, with a west wind 26 to 34 mph, with gusts as high as 43 mph.  Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 6 °F

    Snow Likely
    and Blowing
    Snow

  • Sunday Night

    Sunday Night: Areas of blowing snow. Mostly clear, with a low around -4. Wind chill values as low as -25. Breezy, with a west wind 22 to 24 mph, with gusts as high as 32 mph.

    Low: -4 °F

    Areas Blowing
    Snow and
    Breezy

  • Monday

    Monday: Sunny, with a high near 13. Wind chill values as low as -26. Breezy, with a west wind 13 to 21 mph, with gusts as high as 26 mph.

    High: 13 °F

    Sunny and
    Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 7. Windy, with a west wind 21 to 25 mph, with gusts as high as 31 mph.

    Low: 7 °F

    Mostly Clear
    and Windy

  • Tuesday

    Tuesday: Sunny, with a high near 21. Breezy.

    High: 21 °F

    Sunny and
    Breezy then
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 11. Windy.

    Low: 11 °F

    Mostly Clear
    and Windy

  • Wednesday

    Wednesday: Sunny, with a high near 24. Windy.

    High: 24 °F

    Sunny and
    Windy

Detailed Forecast

Overnight
Snow. Widespread blowing snow. Steady temperature around 2. Wind chill values as low as -22. Breezy, with a west wind around 21 mph, with gusts as high as 36 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 2 to 4 inches possible.
Sunday
Snow likely, mainly before 9am. Widespread blowing snow, mainly before 5pm. Mostly cloudy, then gradually becoming sunny and cold, with a high near 6. Wind chill values as low as -30. Windy, with a west wind 26 to 34 mph, with gusts as high as 43 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Sunday Night
Areas of blowing snow. Mostly clear, with a low around -4. Wind chill values as low as -25. Breezy, with a west wind 22 to 24 mph, with gusts as high as 32 mph.
Monday
Sunny, with a high near 13. Wind chill values as low as -26. Breezy, with a west wind 13 to 21 mph, with gusts as high as 26 mph.
Monday Night
Mostly clear, with a low around 7. Windy, with a west wind 21 to 25 mph, with gusts as high as 31 mph.
Tuesday
Sunny, with a high near 21. Breezy.
Tuesday Night
Mostly clear, with a low around 11. Windy.
Wednesday
Sunny, with a high near 24. Windy.
Wednesday Night
Mostly cloudy, with a low around 15. Windy.
New Year's Day
Partly sunny, with a high near 26. Windy.
Thursday Night
A slight chance of snow. Mostly cloudy, with a low around 18. Windy.
Friday
A chance of snow. Mostly cloudy, with a high near 22. Windy.
Friday Night
A chance of snow. Mostly cloudy, with a low around 14. Windy.
Saturday
A chance of snow. Partly sunny, with a high near 18. Windy.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW LONG'S PEAK CO
 40.24°N 105.65°W (Elev. 12001 ft)
3:27 am MST Dec 28, 2025
4am MST Dec 28, 2025-6pm MST Jan 3, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database