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

Heavy Lake Effect Snow Downwind of Lakes Erie and Ontario; Fire Weather Concerns in the Southern Plains and Southeast

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. There is increasing confidence in snow squalls causing bursts of snow & gusty winds on New Year's Eve. Elevated fire weather conditions will continue today over parts of the Southern Plains and across much of the Southeast U.S. Read More >

Hazardous Weather Conditions

Current conditions at

Granby-Grand County Airport (KGNB)

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

Fair

32°F

0°C

Humidity 50%
Wind Speed Calm
Barometer 30.47 in
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Last update 30 Dec 3:35 pm MST
Extended Forecast for

3 Miles SW LONG'S PEAK CO

  • This Afternoon

    This Afternoon: Sunny, with a high near 23. Breezy, with a west wind around 17 mph, with gusts as high as 28 mph.

    High: 23 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 15. Wind chill values as low as -4. Windy, with a west wind 22 to 29 mph, with gusts as high as 44 mph.

    Low: 15 °F

    Mostly Clear
    and Windy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 27. Wind chill values as low as -2. Windy, with a west wind 20 to 28 mph, with gusts as high as 41 mph.

    High: 27 °F

    Mostly Sunny
    and Windy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 19. Windy, with a west wind 23 to 29 mph, with gusts as high as 34 mph.

    Low: 19 °F

    Mostly Cloudy
    and Windy

  • New Year's Day

    New Year's Day: Snow, mainly after 11am. High near 21. Windy, with a west wind 22 to 28 mph, with gusts as high as 37 mph. Chance of precipitation is 80%.

    High: 21 °F

    Snow and
    Windy

  • Thursday Night

    Thursday Night: Snow. Low around 20. Windy. Chance of precipitation is 90%.

    Low: 20 °F

    Snow and
    Windy

  • Friday

    Friday: Snow. High near 21. Windy. Chance of precipitation is 80%.

    High: 21 °F

    Snow and
    Windy

  • Friday Night

    Friday Night: A slight chance of snow before 11pm. Mostly cloudy, with a low around 18. Windy.

    Low: 18 °F

    Windy. Slight
    Chance Snow
    then Mostly
    Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 24. Windy.

    High: 24 °F

    Mostly Sunny
    and Windy

Detailed Forecast

This Afternoon
Sunny, with a high near 23. Breezy, with a west wind around 17 mph, with gusts as high as 28 mph.
Tonight
Mostly clear, with a low around 15. Wind chill values as low as -4. Windy, with a west wind 22 to 29 mph, with gusts as high as 44 mph.
Wednesday
Mostly sunny, with a high near 27. Wind chill values as low as -2. Windy, with a west wind 20 to 28 mph, with gusts as high as 41 mph.
Wednesday Night
Mostly cloudy, with a low around 19. Windy, with a west wind 23 to 29 mph, with gusts as high as 34 mph.
New Year's Day
Snow, mainly after 11am. High near 21. Windy, with a west wind 22 to 28 mph, with gusts as high as 37 mph. Chance of precipitation is 80%.
Thursday Night
Snow. Low around 20. Windy. Chance of precipitation is 90%.
Friday
Snow. High near 21. Windy. Chance of precipitation is 80%.
Friday Night
A slight chance of snow before 11pm. Mostly cloudy, with a low around 18. Windy.
Saturday
Mostly sunny, with a high near 24. Windy.
Saturday Night
Partly cloudy, with a low around 15. Windy.
Sunday
A chance of snow. Partly sunny, with a high near 22. Windy.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 13. Windy.
Monday
A chance of snow. Partly sunny, with a high near 18. Windy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW LONG'S PEAK CO
 40.24°N 105.65°W (Elev. 12001 ft)
Last Update:
2:21 pm MST Dec 30, 2025
Forecast Valid:
3pm MST Dec 30, 2025-6pm MST Jan 5, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation