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.

Light Snow

19°F

-7°C

Humidity 78%
Wind Speed SW 3 mph
Barometer 30.03 in
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Last update 5 Dec 4:15 am MST
Extended Forecast for

Guanella Pass CO

Winter Storm Warning December 5, 11:00pm until December 6, 11:00pm
Click here for hazard details and duration
Winter Storm Warning

  • Overnight

    Overnight: A 30 percent chance of snow. Patchy blowing snow. Mostly cloudy, with a steady temperature around 7. Wind chill values as low as -18. Windy, with a west wind around 31 mph, with gusts as high as 47 mph. Little or no snow accumulation expected.

    Low: 7 °F

    Chance Snow
    and Patchy
    Blowing Snow

  • Friday

    Friday: A 50 percent chance of snow. Patchy blowing snow before 11am, then patchy blowing snow after 2pm. Partly sunny, with a high near 16. Wind chill values as low as -16. Windy, with a west wind 18 to 26 mph, with gusts as high as 40 mph. New snow accumulation of less than a half inch possible.

    High: 16 °F

    Chance Snow
    and Patchy
    Blowing Snow

  • Friday Night

    Friday Night: Snow likely, mainly after 11pm. Widespread blowing snow, mainly after 10pm. Mostly cloudy, with a temperature falling to near 10 by 9pm, then rising to around 17 during the remainder of the night. Wind chill values as low as -12. Windy, with a west wind 24 to 32 mph, with gusts as high as 48 mph. Chance of precipitation is 70%. New snow accumulation of 3 to 5 inches possible.

    Low: 10 °F⇑

    Snow Likely
    and Blowing
    Snow

  • Saturday

    Saturday: Snow. The snow could be heavy at times. Widespread blowing snow. High near 19. Wind chill values as low as -8. Windy, with a west wind around 32 mph, with gusts as high as 55 mph. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.

    High: 19 °F

    Heavy Snow
    and Blowing
    Snow

  • Saturday Night

    Saturday Night: A 50 percent chance of snow. Widespread blowing snow, mainly before 11pm. Mostly cloudy, with a low around 6. Windy, with a west wind 24 to 30 mph, with gusts as high as 50 mph.

    Low: 6 °F

    Chance Snow
    and Blowing
    Snow

  • Sunday

    Sunday: A 20 percent chance of snow before 11am. Patchy blowing snow before 4pm. Mostly sunny, with a high near 15. Windy.

    High: 15 °F

    Slight Chance
    Snow and
    Patchy
    Blowing Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 6. Windy.

    Low: 6 °F

    Partly Cloudy
    and Windy

  • Monday

    Monday: A chance of snow before 11am. Mostly sunny, with a high near 20. Windy.

    High: 20 °F

    Windy. Chance
    Snow then
    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 11. Windy.

    Low: 11 °F

    Partly Cloudy
    and Windy

Detailed Forecast

Overnight
A 30 percent chance of snow. Patchy blowing snow. Mostly cloudy, with a steady temperature around 7. Wind chill values as low as -18. Windy, with a west wind around 31 mph, with gusts as high as 47 mph. Little or no snow accumulation expected.
Friday
A 50 percent chance of snow. Patchy blowing snow before 11am, then patchy blowing snow after 2pm. Partly sunny, with a high near 16. Wind chill values as low as -16. Windy, with a west wind 18 to 26 mph, with gusts as high as 40 mph. New snow accumulation of less than a half inch possible.
Friday Night
Snow likely, mainly after 11pm. Widespread blowing snow, mainly after 10pm. Mostly cloudy, with a temperature falling to near 10 by 9pm, then rising to around 17 during the remainder of the night. Wind chill values as low as -12. Windy, with a west wind 24 to 32 mph, with gusts as high as 48 mph. Chance of precipitation is 70%. New snow accumulation of 3 to 5 inches possible.
Saturday
Snow. The snow could be heavy at times. Widespread blowing snow. High near 19. Wind chill values as low as -8. Windy, with a west wind around 32 mph, with gusts as high as 55 mph. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.
Saturday Night
A 50 percent chance of snow. Widespread blowing snow, mainly before 11pm. Mostly cloudy, with a low around 6. Windy, with a west wind 24 to 30 mph, with gusts as high as 50 mph.
Sunday
A 20 percent chance of snow before 11am. Patchy blowing snow before 4pm. Mostly sunny, with a high near 15. Windy.
Sunday Night
Partly cloudy, with a low around 6. Windy.
Monday
A chance of snow before 11am. Mostly sunny, with a high near 20. Windy.
Monday Night
Partly cloudy, with a low around 11. Windy.
Tuesday
Mostly sunny, with a high near 28. Windy.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 19. Very windy.
Wednesday
A chance of snow. Partly sunny, with a high near 25. Very windy.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 21. Very windy.
Thursday
A chance of snow. Partly sunny, with a high near 27. Windy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Guanella Pass CO
 39.62°N 105.73°W (Elev. 12398 ft)
Last Update:
3:26 am MST Dec 5, 2025
Forecast Valid:
4am MST Dec 5, 2025-6pm MST Dec 11, 2025
 
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