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.

Overcast

22°F

-6°C

Humidity 62%
Wind Speed W 3 mph
Barometer 30.08 in
Dewpoint 11°F (-12°C)
Visibility 10.00 mi
Last update 5 Dec 12:35 am MST
Extended Forecast for

4 Miles WNW 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 40 percent chance of snow. Patchy blowing snow. Mostly cloudy, with a low around -1. Wind chill values as low as -24. Windy, with a west northwest wind 23 to 25 mph, with gusts as high as 41 mph. Total nighttime snow accumulation of less than a half inch possible.

    Low: -1 °F

    Chance Snow
    and Patchy
    Blowing Snow

  • Friday

    Friday: Snow likely, mainly after 11am. Areas of blowing snow. Mostly cloudy and cold, with a high near 8. Wind chill values as low as -19. Breezy, with a west northwest wind 18 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

    High: 8 °F

    Snow Likely
    and Areas
    Blowing Snow

  • Friday Night

    Friday Night: Snow, mainly after 11pm. The snow could be heavy at times. Widespread blowing snow, mainly after 8pm. Temperature falling to near 5 by 8pm, then rising to around 10 during the remainder of the night. Wind chill values as low as -18. Windy, with a west wind 24 to 32 mph, with gusts as high as 49 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 7 inches possible.

    Low: 5 °F⇑

    Heavy Snow
    and Blowing
    Snow

  • Saturday

    Saturday: Snow. The snow could be heavy at times. Widespread blowing snow. High near 10. Wind chill values as low as -20. Very windy, with a west wind 31 to 36 mph, with gusts as high as 49 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

    High: 10 °F

    Heavy Snow
    and Blowing
    Snow

  • Saturday Night

    Saturday Night: Snow likely. Widespread blowing snow. Mostly cloudy, with a low around 2. Windy, with a west northwest wind 31 to 33 mph, with gusts as high as 46 mph. Chance of precipitation is 70%.

    Low: 2 °F

    Snow Likely
    and Blowing
    Snow

  • Sunday

    Sunday: A 40 percent chance of snow, mainly before 11am. Areas of blowing snow. Mostly sunny and cold, with a high near 6. Windy.

    High: 6 °F

    Chance Snow
    and Areas
    Blowing Snow

  • Sunday Night

    Sunday Night: A 20 percent chance of snow showers after 11pm. Partly cloudy, with a low around 2. Very windy.

    Low: 2 °F

    Slight Chance
    Snow Showers
    and Very
    Windy

  • Monday

    Monday: A chance of snow showers. Partly sunny and cold, with a high near 10. Very windy.

    High: 10 °F

    Chance Snow
    Showers and
    Very Windy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 6. Very windy.

    Low: 6 °F

    Partly Cloudy
    and Very
    Windy

Detailed Forecast

Overnight
A 40 percent chance of snow. Patchy blowing snow. Mostly cloudy, with a low around -1. Wind chill values as low as -24. Windy, with a west northwest wind 23 to 25 mph, with gusts as high as 41 mph. Total nighttime snow accumulation of less than a half inch possible.
Friday
Snow likely, mainly after 11am. Areas of blowing snow. Mostly cloudy and cold, with a high near 8. Wind chill values as low as -19. Breezy, with a west northwest wind 18 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.
Friday Night
Snow, mainly after 11pm. The snow could be heavy at times. Widespread blowing snow, mainly after 8pm. Temperature falling to near 5 by 8pm, then rising to around 10 during the remainder of the night. Wind chill values as low as -18. Windy, with a west wind 24 to 32 mph, with gusts as high as 49 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 7 inches possible.
Saturday
Snow. The snow could be heavy at times. Widespread blowing snow. High near 10. Wind chill values as low as -20. Very windy, with a west wind 31 to 36 mph, with gusts as high as 49 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.
Saturday Night
Snow likely. Widespread blowing snow. Mostly cloudy, with a low around 2. Windy, with a west northwest wind 31 to 33 mph, with gusts as high as 46 mph. Chance of precipitation is 70%.
Sunday
A 40 percent chance of snow, mainly before 11am. Areas of blowing snow. Mostly sunny and cold, with a high near 6. Windy.
Sunday Night
A 20 percent chance of snow showers after 11pm. Partly cloudy, with a low around 2. Very windy.
Monday
A chance of snow showers. Partly sunny and cold, with a high near 10. Very windy.
Monday Night
Partly cloudy, with a low around 6. Very windy.
Tuesday
A slight chance of snow showers after 11am. Partly sunny, with a high near 19. Very windy.
Tuesday Night
A chance of snow showers. Mostly cloudy, with a low around 14. Very windy.
Wednesday
A chance of snow showers. Mostly cloudy, with a high near 19. Very windy.
Wednesday Night
A chance of snow showers. Mostly cloudy, with a low around 16. Very windy.
Thursday
A chance of snow showers. Partly sunny, with a high near 19. Very windy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Guanella Pass CO
 39.61°N 105.78°W (Elev. 13445 ft)
Last Update:
2:21 pm MST Dec 4, 2025
Forecast Valid:
12am MST Dec 5, 2025-6pm MST Dec 11, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation