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

6°F

-14°C

Humidity 82%
Wind Speed E 5 mph
Barometer 30.56 in
Dewpoint 1°F (-17°C)
Visibility 10.00 mi
Wind Chill-3°F (-19°C)
Last update 30 Dec 1:15 am MST
Extended Forecast for

4 Miles N Devils Thumb Park CO

  • Overnight

    Overnight: Clear, with a low around 10. West wind around 6 mph.

    Low: 10 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 29. Wind chill values as low as zero. West wind around 7 mph.

    High: 29 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 18. West wind around 6 mph.

    Low: 18 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 35. West wind around 7 mph, with gusts as high as 16 mph.

    High: 35 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 23. West wind around 7 mph.

    Low: 23 °F

    Mostly Cloudy

  • New Year's Day

    New Year's Day: A 50 percent chance of snow after 11am.  Mostly cloudy, with a high near 33.

    High: 33 °F

    Chance Snow

  • Thursday Night

    Thursday Night: Snow likely, mainly after 11pm.  Cloudy, with a low around 26. Chance of precipitation is 60%.

    Low: 26 °F

    Snow Likely

  • Friday

    Friday: Snow likely.  Mostly cloudy, with a high near 30.

    High: 30 °F

    Snow Likely

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 23.

    Low: 23 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 10. West wind around 6 mph.
Tuesday
Sunny, with a high near 29. Wind chill values as low as zero. West wind around 7 mph.
Tuesday Night
Mostly clear, with a low around 18. West wind around 6 mph.
Wednesday
Mostly sunny, with a high near 35. West wind around 7 mph, with gusts as high as 16 mph.
Wednesday Night
Mostly cloudy, with a low around 23. West wind around 7 mph.
New Year's Day
A 50 percent chance of snow after 11am. Mostly cloudy, with a high near 33.
Thursday Night
Snow likely, mainly after 11pm. Cloudy, with a low around 26. Chance of precipitation is 60%.
Friday
Snow likely. Mostly cloudy, with a high near 30.
Friday Night
Mostly cloudy, with a low around 23.
Saturday
A slight chance of snow after 11am. Mostly sunny, with a high near 33.
Saturday Night
A slight chance of snow. Partly cloudy, with a low around 21.
Sunday
A chance of snow. Partly sunny, with a high near 32.
Sunday Night
A slight chance of snow. Mostly cloudy, with a low around 18.
Monday
A chance of snow. Partly sunny, with a high near 28.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Devils Thumb Park CO
 40.04°N 105.77°W (Elev. 9757 ft)
2:01 pm MST Dec 29, 2025
1am MST Dec 30, 2025-6pm MST Jan 5, 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