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 Calm
Barometer 30.57 in
Dewpoint 1°F (-17°C)
Visibility 10.00 mi
Last update 30 Dec 1:35 am MST
Extended Forecast for

Grand Lake CO

  • Overnight

    Overnight: Clear, with a low around -1. Wind chill values as low as -10. West southwest wind 3 to 5 mph.

    Low: -1 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 36. Wind chill values as low as -8. Light and variable wind becoming southwest around 6 mph in the afternoon.

    High: 36 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 14. Light and variable wind.

    Low: 14 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 45. Calm wind becoming west around 6 mph in the afternoon.

    High: 45 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 18. West wind 3 to 5 mph.

    Low: 18 °F

    Mostly Cloudy

  • New Year's Day

    New Year's Day: A 40 percent chance of snow after 11am.  Mostly cloudy, with a high near 43.

    High: 43 °F

    Chance Snow

  • Thursday Night

    Thursday Night: A 50 percent chance of snow.  Mostly cloudy, with a low around 25.

    Low: 25 °F

    Chance Snow

  • Friday

    Friday: Snow likely.  Mostly cloudy, with a high near 41.

    High: 41 °F

    Snow Likely

  • Friday Night

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

    Low: 21 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Clear, with a low around -1. Wind chill values as low as -10. West southwest wind 3 to 5 mph.
Tuesday
Sunny, with a high near 36. Wind chill values as low as -8. Light and variable wind becoming southwest around 6 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 14. Light and variable wind.
Wednesday
Mostly sunny, with a high near 45. Calm wind becoming west around 6 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 18. West wind 3 to 5 mph.
New Year's Day
A 40 percent chance of snow after 11am. Mostly cloudy, with a high near 43.
Thursday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 25.
Friday
Snow likely. Mostly cloudy, with a high near 41.
Friday Night
Mostly cloudy, with a low around 21.
Saturday
A slight chance of snow after 11am. Mostly sunny, with a high near 43.
Saturday Night
Partly cloudy, with a low around 19.
Sunday
A chance of snow. Partly sunny, with a high near 40.
Sunday Night
A slight chance of snow. Mostly cloudy, with a low around 16.
Monday
A chance of snow. Partly sunny, with a high near 37.
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Lake CO
 40.25°N 105.85°W (Elev. 8599 ft)
2:01 pm MST Dec 29, 2025
2am MST Dec 30, 2025-6pm MST Jan 5, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database