National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Lake Effect Snow; Subfreezing Temperatures in the Eastern U.S.

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. The Arctic front will continue to bring increasing winds to the Northeast that will remain gusty. Subfreezing overnight low temperatures will be found as far south as the Gulf Coast. Read More >

Hazardous Weather Conditions

Current conditions at

Granby-Grand County Airport (KGNB)

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

Fair

5°F

-15°C

Humidity 82%
Wind Speed E 5 mph
Barometer 30.58 in
Dewpoint 0°F (-18°C)
Visibility 10.00 mi
Wind Chill-5°F (-21°C)
Last update 30 Dec 2:15 am MST
Extended Forecast for

Trail Ridge CO

  • Overnight

    Overnight: Clear, with a low around 9. Wind chill values as low as -6. Breezy, with a west wind 14 to 18 mph, with gusts as high as 29 mph.

    Low: 9 °F

    Clear and
    Breezy

  • Tuesday

    Tuesday: Sunny, with a high near 28. Wind chill values as low as -6. Breezy, with a west wind 13 to 17 mph, with gusts as high as 26 mph.

    High: 28 °F

    Sunny and
    Breezy then
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 17. Wind chill values as low as zero. Breezy, with a west wind 13 to 20 mph, with gusts as high as 26 mph.

    Low: 17 °F

    Mostly Clear
    and Breezy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 35. Breezy, with a west wind 13 to 17 mph, with gusts as high as 26 mph.

    High: 35 °F

    Mostly Sunny
    and Breezy
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 21. Breezy, with a west wind 15 to 18 mph, with gusts as high as 26 mph.

    Low: 21 °F

    Mostly Cloudy
    and Breezy

  • New Year's Day

    New Year's Day: A 50 percent chance of snow, mainly after 11am. Cloudy, with a high near 31. Breezy.

    High: 31 °F

    Chance Snow
    and Breezy

  • Thursday Night

    Thursday Night: Snow likely, mainly after 11pm. Mostly cloudy, with a low around 24. Breezy. Chance of precipitation is 60%.

    Low: 24 °F

    Snow Likely
    and Breezy

  • Friday

    Friday: A chance of snow. Mostly cloudy, with a high near 29. Breezy.

    High: 29 °F

    Chance Snow
    and Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 21. Breezy.

    Low: 21 °F

    Mostly Cloudy
    and Breezy

Detailed Forecast

Overnight
Clear, with a low around 9. Wind chill values as low as -6. Breezy, with a west wind 14 to 18 mph, with gusts as high as 29 mph.
Tuesday
Sunny, with a high near 28. Wind chill values as low as -6. Breezy, with a west wind 13 to 17 mph, with gusts as high as 26 mph.
Tuesday Night
Mostly clear, with a low around 17. Wind chill values as low as zero. Breezy, with a west wind 13 to 20 mph, with gusts as high as 26 mph.
Wednesday
Mostly sunny, with a high near 35. Breezy, with a west wind 13 to 17 mph, with gusts as high as 26 mph.
Wednesday Night
Mostly cloudy, with a low around 21. Breezy, with a west wind 15 to 18 mph, with gusts as high as 26 mph.
New Year's Day
A 50 percent chance of snow, mainly after 11am. Cloudy, with a high near 31. Breezy.
Thursday Night
Snow likely, mainly after 11pm. Mostly cloudy, with a low around 24. Breezy. Chance of precipitation is 60%.
Friday
A chance of snow. Mostly cloudy, with a high near 29. Breezy.
Friday Night
Mostly cloudy, with a low around 21. Breezy.
Saturday
Mostly sunny, with a high near 32. Breezy.
Saturday Night
Partly cloudy, with a low around 17. Breezy.
Sunday
A chance of snow. Partly sunny, with a high near 28. Breezy.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 15. Breezy.
Monday
A slight chance of snow. Partly sunny, with a high near 25. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Trail Ridge CO
 40.43°N 105.75°W (Elev. 11864 ft)
Last Update:
2:11 am MST Dec 30, 2025
Forecast Valid:
2am MST Dec 30, 2025-6pm MST Jan 5, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation