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

26°F

-3°C

Humidity 82%
Wind Speed SW 7 mph
Barometer 29.99 in
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 5 Dec 5:15 pm MST
Extended Forecast for

2 Miles SW 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

  • This Afternoon

    This Afternoon: A 30 percent chance of snow. Areas of blowing snow. Partly sunny, with a steady temperature around 13. Wind chill values as low as -6. Blustery, with a west northwest wind around 24 mph, with gusts as high as 37 mph. Total daytime snow accumulation of 1 to 3 inches possible.

    High: 13 °F

    Chance Snow
    and Areas
    Blowing Snow

  • Tonight

    Tonight: Snow, mainly after 9pm. The snow could be heavy at times. Widespread blowing snow, mainly after 9pm. Temperature rising to around 21 by 5am. Wind chill values as low as -7. Windy, with a west wind 29 to 34 mph, with gusts as high as 60 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 7 inches possible.

    Low: 13 °F⇑

    Heavy Snow
    and Blowing
    Snow

  • Saturday

    Saturday: Snow. The snow could be heavy at times. Widespread blowing snow. Temperature falling to around 12 by 5pm. Wind chill values as low as -10. Very windy, with a west northwest wind 33 to 37 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. Low around 9. Wind chill values as low as -14. Windy, with a west wind around 33 mph, with gusts as high as 50 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    Low: 9 °F

    Snow and
    Blowing Snow

  • Sunday

    Sunday: A 50 percent chance of snow, mainly before 11am. Widespread blowing snow, mainly before 11am. Mostly sunny, with a high near 13. Windy, with a west wind 24 to 33 mph, with gusts as high as 49 mph.

    High: 13 °F

    Chance Snow
    and Blowing
    Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 11. Windy.

    Low: 11 °F

    Partly Cloudy
    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 15. Very windy.

    Low: 15 °F

    Partly Cloudy
    and Very
    Windy

  • Tuesday

    Tuesday: A chance of snow, mainly before 11am. Partly sunny, with a high near 27. Very windy.

    High: 27 °F

    Chance Snow
    and Very
    Windy

Detailed Forecast

This Afternoon
A 30 percent chance of snow. Areas of blowing snow. Partly sunny, with a steady temperature around 13. Wind chill values as low as -6. Blustery, with a west northwest wind around 24 mph, with gusts as high as 37 mph. Total daytime snow accumulation of 1 to 3 inches possible.
Tonight
Snow, mainly after 9pm. The snow could be heavy at times. Widespread blowing snow, mainly after 9pm. Temperature rising to around 21 by 5am. Wind chill values as low as -7. Windy, with a west wind 29 to 34 mph, with gusts as high as 60 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 falling to around 12 by 5pm. Wind chill values as low as -10. Very windy, with a west northwest wind 33 to 37 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. Low around 9. Wind chill values as low as -14. Windy, with a west wind around 33 mph, with gusts as high as 50 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Sunday
A 50 percent chance of snow, mainly before 11am. Widespread blowing snow, mainly before 11am. Mostly sunny, with a high near 13. Windy, with a west wind 24 to 33 mph, with gusts as high as 49 mph.
Sunday Night
Partly cloudy, with a low around 11. Windy.
Monday
A 40 percent chance of snow. Partly sunny, with a high near 18. Windy.
Monday Night
Partly cloudy, with a low around 15. Very windy.
Tuesday
A chance of snow, mainly before 11am. Partly sunny, with a high near 27. Very windy.
Tuesday Night
A chance of snow, mainly after 11pm. Mostly cloudy, with a low around 23. Very windy.
Wednesday
A chance of snow. Partly sunny, with a high near 27. Very windy.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 23. Very windy.
Thursday
A chance of snow. Partly sunny, with a high near 28. Very windy.
Thursday Night
Partly cloudy, with a low around 22. 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 SW Saint Marys Glacier CO
 39.82°N 105.66°W (Elev. 10981 ft)
Last Update:
2:47 pm MST Dec 5, 2025
Forecast Valid:
5pm MST Dec 5, 2025-6pm MST Dec 12, 2025
 
Forecast Discussion
 
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