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

Arapahoe Peak CO

  • Overnight

    Overnight: Clear, with a low around 6. Wind chill values as low as -15. Windy, with a west northwest wind 22 to 28 mph, with gusts as high as 41 mph.

    Low: 6 °F

    Clear and
    Windy

  • Tuesday

    Tuesday: Sunny, with a high near 18. Wind chill values as low as -13. Windy, with a west northwest wind 20 to 28 mph, with gusts as high as 41 mph.

    High: 18 °F

    Sunny and
    Windy

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 13. Wind chill values as low as -8. Windy, with a west wind 23 to 30 mph, with gusts as high as 36 mph.

    Low: 13 °F

    Mostly Clear
    and Windy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 24. Wind chill values as low as -7. Windy, with a west wind 20 to 29 mph, with gusts as high as 34 mph.

    High: 24 °F

    Mostly Sunny
    and Windy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 18. Windy, with a west wind 24 to 28 mph, with gusts as high as 36 mph.

    Low: 18 °F

    Mostly Cloudy
    and Windy

  • New Year's Day

    New Year's Day: Snow likely, mainly after 11am. Cloudy, with a high near 20. Windy. Chance of precipitation is 60%.

    High: 20 °F

    Snow Likely
    and Windy

  • Thursday Night

    Thursday Night: Snow likely. Cloudy, with a low around 18. Windy. Chance of precipitation is 70%.

    Low: 18 °F

    Snow Likely
    and Windy

  • Friday

    Friday: Snow likely, mainly before 11am. Mostly cloudy, with a high near 19. Windy.

    High: 19 °F

    Snow Likely
    and Windy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 16. Windy.

    Low: 16 °F

    Mostly Cloudy
    and Windy

Detailed Forecast

Overnight
Clear, with a low around 6. Wind chill values as low as -15. Windy, with a west northwest wind 22 to 28 mph, with gusts as high as 41 mph.
Tuesday
Sunny, with a high near 18. Wind chill values as low as -13. Windy, with a west northwest wind 20 to 28 mph, with gusts as high as 41 mph.
Tuesday Night
Mostly clear, with a low around 13. Wind chill values as low as -8. Windy, with a west wind 23 to 30 mph, with gusts as high as 36 mph.
Wednesday
Mostly sunny, with a high near 24. Wind chill values as low as -7. Windy, with a west wind 20 to 29 mph, with gusts as high as 34 mph.
Wednesday Night
Mostly cloudy, with a low around 18. Windy, with a west wind 24 to 28 mph, with gusts as high as 36 mph.
New Year's Day
Snow likely, mainly after 11am. Cloudy, with a high near 20. Windy. Chance of precipitation is 60%.
Thursday Night
Snow likely. Cloudy, with a low around 18. Windy. Chance of precipitation is 70%.
Friday
Snow likely, mainly before 11am. Mostly cloudy, with a high near 19. Windy.
Friday Night
Mostly cloudy, with a low around 16. Windy.
Saturday
A slight chance of snow after 11am. Partly sunny, with a high near 22. Windy.
Saturday Night
Partly cloudy, with a low around 13. Windy.
Sunday
A chance of snow. Partly sunny, with a high near 18. Windy.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 11. Windy.
Monday
A chance of snow. Partly sunny, with a high near 15. Windy.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Arapahoe Peak CO
 40.02°N 105.65°W (Elev. 12680 ft)
Last Update:
2:11 am MST Dec 30, 2025
Forecast Valid:
2am MST Dec 30, 2025-6pm MST Jan 5, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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