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

Hazardous Weather Conditions

Current conditions at

Granby-Grand County Airport (KGNB)

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

Fair

38°F

3°C

Humidity 40%
Wind Speed Calm
Barometer 30.35 in
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Last update 15 Dec 4:15 pm MST
Extended Forecast for

3 Miles SW LONG'S PEAK CO

High Wind Watch December 17, 11:00am until December 18, 12:00am
Click here for hazard details and duration
High Wind Watch

  • Tonight

    Tonight: Increasing clouds, with a low around 17. Wind chill values as low as -2. Windy, with a west wind 20 to 28 mph, with gusts as high as 41 mph.

    Low: 17 °F

    Increasing
    Clouds and
    Windy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 24. Wind chill values as low as -1. Windy, with a west wind around 26 mph, with gusts as high as 40 mph.

    High: 24 °F

    Mostly Sunny
    and Windy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 18. Wind chill values as low as -2. Windy, with a west wind 26 to 32 mph, with gusts as high as 40 mph.

    Low: 18 °F

    Partly Cloudy
    and Windy

  • Wednesday

    Wednesday: A 50 percent chance of snow after 11am. Increasing clouds, with a high near 23. Wind chill values as low as -2. Strong and damaging winds, with a west southwest wind 36 to 41 mph increasing to 50 to 55 mph in the afternoon. Winds could gust as high as 75 mph. New snow accumulation of 1 to 2 inches possible.

    High: 23 °F

    Chance Snow
    and Damaging
    Winds

  • Wednesday Night

    Wednesday Night: Snow, mainly before 11pm. The snow could be heavy at times. Low around 6. Very windy, with a west wind 41 to 47 mph, with gusts as high as 70 mph. Chance of precipitation is 80%.

    Low: 6 °F

    Very Windy.
    Heavy Snow
    then Chance
    Snow

  • Thursday

    Thursday: A 30 percent chance of snow. Partly sunny, with a high near 20. Very windy.

    High: 20 °F

    Chance Snow
    and Very
    Windy

  • Thursday Night

    Thursday Night: A 30 percent chance of snow. Mostly cloudy, with a low around 17. Strong and damaging winds.

    Low: 17 °F

    Chance Snow
    and Damaging
    Winds

  • Friday

    Friday: Mostly sunny, with a high near 27. Strong and damaging winds.

    High: 27 °F

    Mostly Sunny
    and Damaging
    Winds

  • Friday Night

    Friday Night: A chance of snow. Mostly cloudy, with a low around 21. Very windy.

    Low: 21 °F

    Chance Snow
    and Very
    Windy

Detailed Forecast

Tonight
Increasing clouds, with a low around 17. Wind chill values as low as -2. Windy, with a west wind 20 to 28 mph, with gusts as high as 41 mph.
Tuesday
Mostly sunny, with a high near 24. Wind chill values as low as -1. Windy, with a west wind around 26 mph, with gusts as high as 40 mph.
Tuesday Night
Partly cloudy, with a low around 18. Wind chill values as low as -2. Windy, with a west wind 26 to 32 mph, with gusts as high as 40 mph.
Wednesday
A 50 percent chance of snow after 11am. Increasing clouds, with a high near 23. Wind chill values as low as -2. Strong and damaging winds, with a west southwest wind 36 to 41 mph increasing to 50 to 55 mph in the afternoon. Winds could gust as high as 75 mph. New snow accumulation of 1 to 2 inches possible.
Wednesday Night
Snow, mainly before 11pm. The snow could be heavy at times. Low around 6. Very windy, with a west wind 41 to 47 mph, with gusts as high as 70 mph. Chance of precipitation is 80%.
Thursday
A 30 percent chance of snow. Partly sunny, with a high near 20. Very windy.
Thursday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 17. Strong and damaging winds.
Friday
Mostly sunny, with a high near 27. Strong and damaging winds.
Friday Night
A chance of snow. Mostly cloudy, with a low around 21. Very windy.
Saturday
Snow likely. Mostly cloudy, with a high near 22. Windy.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 19. Windy.
Sunday
A chance of snow. Partly sunny, with a high near 23. Windy.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 21. Windy.
Monday
A slight chance of snow. Mostly sunny, with a high near 25. 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:
2:41 pm MST Dec 15, 2025
Forecast Valid:
4pm MST Dec 15, 2025-6pm MST Dec 22, 2025
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation