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

26°F

-3°C

Humidity 82%
Wind Speed SE 7 mph
Barometer 29.99 in
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 5 Dec 5:55 pm MST
Extended Forecast for

2 Miles NW Saint Marys Glacier CO

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

  • Tonight

    Tonight: Snow, mainly after 10pm. The snow could be heavy at times. Widespread blowing snow, mainly after 9pm. Temperature rising to around 19 by 5am. Wind chill values as low as -9. Windy, with a west wind 26 to 33 mph, with gusts as high as 55 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of 4 to 8 inches possible.

    Low: 12 °F⇑

    Heavy Snow
    and Blowing
    Snow

  • Saturday

    Saturday: Snow. The snow could be heavy at times. Widespread blowing snow. Temperature falling to around 11 by 5pm. Wind chill values as low as -11. Very windy, with a west northwest wind 32 to 37 mph, with gusts as high as 60 mph. Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.

    High: 19 °F⇓

    Heavy Snow
    and Blowing
    Snow

  • Saturday Night

    Saturday Night: Snow. Widespread blowing snow. Low around 7. Wind chill values as low as -16. Windy, with a west wind around 31 mph, with gusts as high as 47 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 7 °F

    Snow and
    Blowing Snow

  • Sunday

    Sunday: Snow likely, mainly before 11am. Widespread blowing snow, mainly before 11am. Partly sunny, with a high near 14. Wind chill values as low as -17. Windy, with a west wind 23 to 30 mph, with gusts as high as 46 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.

    High: 14 °F

    Snow Likely
    and Blowing
    Snow

  • Sunday Night

    Sunday Night: A 20 percent chance of snow after 11pm. Partly cloudy, with a low around 9. Windy, with a west wind 24 to 31 mph, with gusts as high as 47 mph.

    Low: 9 °F

    Slight Chance
    Snow and
    Windy

  • Monday

    Monday: A 40 percent chance of snow. Partly sunny, with a high near 18. Windy.

    High: 18 °F

    Chance Snow
    and Windy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 12. Very windy.

    Low: 12 °F

    Partly Cloudy
    and Very
    Windy

  • Tuesday

    Tuesday: A chance of snow. Partly sunny, with a high near 26. Very windy.

    High: 26 °F

    Chance Snow
    and Very
    Windy

  • Tuesday Night

    Tuesday Night: A chance of snow. Mostly cloudy, with a low around 21. Very windy.

    Low: 21 °F

    Chance Snow
    and Very
    Windy

Detailed Forecast

Tonight
Snow, mainly after 10pm. The snow could be heavy at times. Widespread blowing snow, mainly after 9pm. Temperature rising to around 19 by 5am. Wind chill values as low as -9. Windy, with a west wind 26 to 33 mph, with gusts as high as 55 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of 4 to 8 inches possible.
Saturday
Snow. The snow could be heavy at times. Widespread blowing snow. Temperature falling to around 11 by 5pm. Wind chill values as low as -11. Very windy, with a west northwest wind 32 to 37 mph, with gusts as high as 60 mph. Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.
Saturday Night
Snow. Widespread blowing snow. Low around 7. Wind chill values as low as -16. Windy, with a west wind around 31 mph, with gusts as high as 47 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Sunday
Snow likely, mainly before 11am. Widespread blowing snow, mainly before 11am. Partly sunny, with a high near 14. Wind chill values as low as -17. Windy, with a west wind 23 to 30 mph, with gusts as high as 46 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.
Sunday Night
A 20 percent chance of snow after 11pm. Partly cloudy, with a low around 9. Windy, with a west wind 24 to 31 mph, with gusts as high as 47 mph.
Monday
A 40 percent chance of snow. Partly sunny, with a high near 18. Windy.
Monday Night
Partly cloudy, with a low around 12. Very windy.
Tuesday
A chance of snow. Partly sunny, with a high near 26. Very windy.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 21. Very windy.
Wednesday
A chance of snow. Mostly cloudy, with a high near 28. 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 28. Very windy.
Thursday Night
Mostly cloudy, with a low around 19. Windy.
Friday
Mostly sunny, with a high near 27. Windy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Saint Marys Glacier CO
 39.87°N 105.66°W (Elev. 10620 ft)
Last Update:
2:47 pm MST Dec 5, 2025
Forecast Valid:
6pm MST Dec 5, 2025-6pm MST Dec 12, 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