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

27°F

-3°C

Humidity 77%
Wind Speed S 10 mph
Barometer 29.97 in
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 5 Dec 4:35 pm 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

  • This Afternoon

    This Afternoon: A 30 percent chance of snow, mainly before 5pm. Patchy blowing snow. Partly sunny, with a steady temperature around 13. Wind chill values as low as -8. Blustery, with a west northwest wind around 22 mph, with gusts as high as 34 mph. Total daytime snow accumulation of less than one inch possible.

    High: 13 °F

    Chance Snow
    and Patchy
    Blowing Snow

  • Tonight

    Tonight: Snow, mainly after 11pm. The snow could be heavy at times. Widespread blowing snow, mainly after 9pm. Temperature rising to around 18 by 5am. Wind chill values as low as -12. Windy, with a west wind 29 to 33 mph, with gusts as high as 55 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 7 inches possible.

    Low: 11 °F⇑

    Heavy Snow
    and Blowing
    Snow

  • Saturday

    Saturday: Snow. The snow could be heavy at times. Widespread blowing snow. Temperature rising to near 19 by 9am, then falling to around 13 during the remainder of the day. Wind chill values as low as -8. Windy, with a west northwest wind 32 to 34 mph, with gusts as high as 60 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: Snow. Widespread blowing snow, mainly before 5am. Low around 5. Wind chill values as low as -17. Windy, with a west wind 25 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 5 °F

    Snow and
    Blowing Snow

  • Sunday

    Sunday: A 30 percent chance of snow before 11am. Areas of blowing snow. Mostly sunny, with a high near 15. Windy, with a west northwest wind 20 to 28 mph, with gusts as high as 40 mph.

    High: 15 °F

    Chance Snow
    and Areas
    Blowing Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 8. Windy.

    Low: 8 °F

    Partly Cloudy
    and Windy

  • Monday

    Monday: A 30 percent chance of snow, mainly before 11am. Mostly sunny, with a high near 19. Windy.

    High: 19 °F

    Chance Snow
    and Windy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 10. Windy.

    Low: 10 °F

    Partly Cloudy
    and Windy

  • Tuesday

    Tuesday: A slight chance of snow. Partly sunny, with a high near 27. Windy.

    High: 27 °F

    Slight Chance
    Snow and
    Windy

Detailed Forecast

This Afternoon
A 30 percent chance of snow, mainly before 5pm. Patchy blowing snow. Partly sunny, with a steady temperature around 13. Wind chill values as low as -8. Blustery, with a west northwest wind around 22 mph, with gusts as high as 34 mph. Total daytime snow accumulation of less than one inch possible.
Tonight
Snow, mainly after 11pm. The snow could be heavy at times. Widespread blowing snow, mainly after 9pm. Temperature rising to around 18 by 5am. Wind chill values as low as -12. Windy, with a west wind 29 to 33 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. Temperature rising to near 19 by 9am, then falling to around 13 during the remainder of the day. Wind chill values as low as -8. Windy, with a west northwest wind 32 to 34 mph, with gusts as high as 60 mph. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.
Saturday Night
Snow. Widespread blowing snow, mainly before 5am. Low around 5. Wind chill values as low as -17. Windy, with a west wind 25 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Sunday
A 30 percent chance of snow before 11am. Areas of blowing snow. Mostly sunny, with a high near 15. Windy, with a west northwest wind 20 to 28 mph, with gusts as high as 40 mph.
Sunday Night
Partly cloudy, with a low around 8. Windy.
Monday
A 30 percent chance of snow, mainly before 11am. Mostly sunny, with a high near 19. Windy.
Monday Night
Partly cloudy, with a low around 10. Windy.
Tuesday
A slight chance of snow. Partly sunny, with a high near 27. Windy.
Tuesday Night
A chance of snow, mainly after 11pm. Mostly cloudy, with a low around 21. Very windy.
Wednesday
A chance of snow. Partly sunny, with a high near 28. Very windy.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 24. Very windy.
Thursday
A slight chance of snow. Partly sunny, with a high near 28. Windy.
Thursday Night
Partly cloudy, with a low around 18. Windy.
Friday
Mostly sunny, with a high near 28. Breezy.
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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:
2:47 pm MST Dec 5, 2025
Forecast Valid:
4pm MST Dec 5, 2025-6pm MST Dec 12, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation