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

22°F

-6°C

Humidity 95%
Wind Speed Calm
Barometer 29.94 in
Dewpoint 21°F (-6°C)
Visibility 1.50 mi
Last update 3 Dec 2:15 am MST
Extended Forecast for

4 Miles WNW Guanella Pass CO

  • Overnight

    Overnight: Snow. Low around 3. Wind chill values as low as -10. South southwest wind around 10 mph, with gusts as high as 16 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 1 to 3 inches possible.

    Low: 3 °F

    Snow

  • Wednesday

    Wednesday: Snow. Temperature rising to near 5 by 11am, then falling to around 1 during the remainder of the day. Wind chill values as low as -16. Southeast wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

    High: 5 °F⇓

    Snow

  • Wednesday Night

    Wednesday Night: Snow likely, mainly before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around -2. Wind chill values as low as -24. Breezy, with a south wind 9 to 18 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: -2 °F

    Snow Likely
    then Partly
    Cloudy and
    Breezy

  • Thursday

    Thursday: Patchy blowing snow before 4pm. Mostly sunny and cold, with a high near 6. Wind chill values as low as -25. Windy, with a west wind 22 to 25 mph, with gusts as high as 38 mph.

    High: 6 °F

    Patchy
    Blowing Snow
    and Windy

  • Thursday Night

    Thursday Night: A 20 percent chance of snow after 11pm. Mostly cloudy, with a low around 0. Windy, with a west wind 28 to 30 mph, with gusts as high as 45 mph.

    Low: 0 °F

    Slight Chance
    Snow and
    Windy

  • Friday

    Friday: A 50 percent chance of snow. Partly sunny, with a high near 12. Windy.

    High: 12 °F

    Chance Snow
    and Windy

  • Friday Night

    Friday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 3. Very windy.

    Low: 3 °F

    Chance Snow
    and Very
    Windy

  • Saturday

    Saturday: Snow likely. Mostly cloudy, with a high near 11. Very windy.

    High: 11 °F

    Snow Likely
    and Very
    Windy

  • Saturday Night

    Saturday Night: Snow likely. Mostly cloudy, with a low around 8. Very windy.

    Low: 8 °F

    Snow Likely
    and Very
    Windy

Detailed Forecast

Overnight
Snow. Low around 3. Wind chill values as low as -10. South southwest wind around 10 mph, with gusts as high as 16 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 1 to 3 inches possible.
Wednesday
Snow. Temperature rising to near 5 by 11am, then falling to around 1 during the remainder of the day. Wind chill values as low as -16. Southeast wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Wednesday Night
Snow likely, mainly before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around -2. Wind chill values as low as -24. Breezy, with a south wind 9 to 18 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Thursday
Patchy blowing snow before 4pm. Mostly sunny and cold, with a high near 6. Wind chill values as low as -25. Windy, with a west wind 22 to 25 mph, with gusts as high as 38 mph.
Thursday Night
A 20 percent chance of snow after 11pm. Mostly cloudy, with a low around 0. Windy, with a west wind 28 to 30 mph, with gusts as high as 45 mph.
Friday
A 50 percent chance of snow. Partly sunny, with a high near 12. Windy.
Friday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 3. Very windy.
Saturday
Snow likely. Mostly cloudy, with a high near 11. Very windy.
Saturday Night
Snow likely. Mostly cloudy, with a low around 8. Very windy.
Sunday
Snow likely, mainly before 11am. Partly sunny, with a high near 11. Very windy.
Sunday Night
A slight chance of snow. Mostly cloudy, with a low around 5. Very windy.
Monday
A chance of snow. Partly sunny, with a high near 12. Very windy.
Monday Night
Mostly cloudy, with a low around 6. Very windy.
Tuesday
A slight chance of snow showers. Partly sunny, with a high near 17. 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:
10:11 pm MST Dec 2, 2025
Forecast Valid:
2am MST Dec 3, 2025-6pm MST Dec 9, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation