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

20°F

-7°C

Humidity 71%
Wind Speed S 3 mph
Barometer 30.05 in
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Last update 5 Dec 2:55 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 steady temperature around 2. Wind chill values as low as -25. Windy, with a west wind around 34 mph, with gusts as high as 50 mph. Total nighttime snow accumulation of less than a half inch possible.

    Low: 2 °F

    Chance Snow
    and Patchy
    Blowing Snow

  • Friday

    Friday: Snow likely, mainly between 11am and 4pm. Areas of blowing snow. Mostly cloudy and cold, with a high near 8. Wind chill values as low as -22. Windy, with a west wind 20 to 29 mph, with gusts as high as 44 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 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 rising to around 12 by 5am. Wind chill values as low as -19. Very windy, with a west wind 28 to 38 mph, with gusts as high as 55 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 12. Wind chill values as low as -18. Very windy, with a west wind 33 to 39 mph, with gusts as high as 55 mph. Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.

    High: 12 °F

    Heavy Snow
    and Blowing
    Snow

  • Saturday Night

    Saturday Night: Snow likely, mainly before 11pm. Widespread blowing snow. Mostly cloudy, with a low around 2. Very windy, with a west wind 32 to 36 mph, with gusts as high as 47 mph. Chance of precipitation is 60%.

    Low: 2 °F

    Snow Likely
    and Blowing
    Snow

  • Sunday

    Sunday: A 40 percent chance of snow before 11am. Areas of blowing snow. Mostly sunny and cold, with a high near 7. Windy.

    High: 7 °F

    Chance Snow
    and Areas
    Blowing Snow

  • Sunday Night

    Sunday Night: A 20 percent chance of snow after 11pm. Partly cloudy, with a low around 1. Very windy.

    Low: 1 °F

    Slight Chance
    Snow and Very
    Windy

  • Monday

    Monday: A chance of snow, mainly before 11am. Partly sunny and cold, with a high near 10. Windy.

    High: 10 °F

    Chance Snow
    and 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 steady temperature around 2. Wind chill values as low as -25. Windy, with a west wind around 34 mph, with gusts as high as 50 mph. Total nighttime snow accumulation of less than a half inch possible.
Friday
Snow likely, mainly between 11am and 4pm. Areas of blowing snow. Mostly cloudy and cold, with a high near 8. Wind chill values as low as -22. Windy, with a west wind 20 to 29 mph, with gusts as high as 44 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Friday Night
Snow, mainly after 11pm. The snow could be heavy at times. Widespread blowing snow, mainly after 8pm. Temperature rising to around 12 by 5am. Wind chill values as low as -19. Very windy, with a west wind 28 to 38 mph, with gusts as high as 55 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 12. Wind chill values as low as -18. Very windy, with a west wind 33 to 39 mph, with gusts as high as 55 mph. Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.
Saturday Night
Snow likely, mainly before 11pm. Widespread blowing snow. Mostly cloudy, with a low around 2. Very windy, with a west wind 32 to 36 mph, with gusts as high as 47 mph. Chance of precipitation is 60%.
Sunday
A 40 percent chance of snow before 11am. Areas of blowing snow. Mostly sunny and cold, with a high near 7. Windy.
Sunday Night
A 20 percent chance of snow after 11pm. Partly cloudy, with a low around 1. Very windy.
Monday
A chance of snow, mainly before 11am. Partly sunny and cold, with a high near 10. Windy.
Monday Night
Partly cloudy, with a low around 6. Very windy.
Tuesday
A slight chance of snow after 11am. Partly sunny, with a high near 18. Very windy.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 12. Very windy.
Wednesday
A chance of snow. Mostly cloudy, with a high near 19. Very windy.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 15. Very windy.
Thursday
A chance of snow. Partly sunny, with a high near 18. 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:
2:26 am MST Dec 5, 2025
Forecast Valid:
3am MST Dec 5, 2025-6pm MST Dec 11, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

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Chance of Precipitation