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.

Fair

45°F

7°C

Humidity 43%
Wind Speed Calm
Barometer 30.29 in
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Last update 22 Nov 3:15 pm MST
Extended Forecast for

3 Miles WNW Saint Marys Glacier CO

  • This Afternoon

    This Afternoon: Sunny, with a high near 28. South wind around 7 mph.

    High: 28 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 19. West wind 9 to 11 mph, with gusts as high as 18 mph.

    Low: 19 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A 50 percent chance of snow showers, mainly after 11am. Mostly cloudy, with a high near 30. West southwest wind 7 to 11 mph becoming east northeast in the afternoon. Winds could gust as high as 18 mph. New snow accumulation of less than one inch possible.

    High: 30 °F

    Chance Snow
    Showers

  • Sunday Night

    Sunday Night: Snow showers likely, mainly before 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 14. Wind chill values as low as -2. Blustery, with a west northwest wind 13 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

    Low: 14 °F

    Blustery.
    Snow Showers
    Likely then
    Chance Snow
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 18. Windy, with a west wind 22 to 26 mph, with gusts as high as 40 mph.

    High: 18 °F

    Mostly Sunny
    and Windy

  • Monday Night

    Monday Night: A 30 percent chance of snow showers after 11pm. Mostly cloudy, with a low around 5. Windy.

    Low: 5 °F

    Chance Snow
    Showers and
    Windy

  • Tuesday

    Tuesday: A 30 percent chance of snow showers, mainly before 11am. Mostly sunny and cold, with a high near 10. Breezy.

    High: 10 °F

    Chance Snow
    Showers and
    Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 5. Breezy.

    Low: 5 °F

    Partly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Wednesday

    Wednesday: A slight chance of snow showers. Partly sunny, with a high near 17. Breezy.

    High: 17 °F

    Slight Chance
    Snow Showers
    and Breezy

Detailed Forecast

This Afternoon
Sunny, with a high near 28. South wind around 7 mph.
Tonight
Increasing clouds, with a low around 19. West wind 9 to 11 mph, with gusts as high as 18 mph.
Sunday
A 50 percent chance of snow showers, mainly after 11am. Mostly cloudy, with a high near 30. West southwest wind 7 to 11 mph becoming east northeast in the afternoon. Winds could gust as high as 18 mph. New snow accumulation of less than one inch possible.
Sunday Night
Snow showers likely, mainly before 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 14. Wind chill values as low as -2. Blustery, with a west northwest wind 13 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.
Monday
Mostly sunny, with a high near 18. Windy, with a west wind 22 to 26 mph, with gusts as high as 40 mph.
Monday Night
A 30 percent chance of snow showers after 11pm. Mostly cloudy, with a low around 5. Windy.
Tuesday
A 30 percent chance of snow showers, mainly before 11am. Mostly sunny and cold, with a high near 10. Breezy.
Tuesday Night
Partly cloudy, with a low around 5. Breezy.
Wednesday
A slight chance of snow showers. Partly sunny, with a high near 17. Breezy.
Wednesday Night
A slight chance of snow showers after 11pm. Mostly cloudy, with a low around 14. Breezy.
Thanksgiving Day
A slight chance of snow showers. Mostly sunny, with a high near 22. Breezy.
Thursday Night
A slight chance of snow showers. Partly cloudy, with a low around 14. Breezy.
Friday
A slight chance of snow showers. Mostly sunny, with a high near 23. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Saint Marys Glacier CO
 39.84°N 105.69°W (Elev. 12507 ft)
Last Update:
2:16 pm MST Nov 22, 2025
Forecast Valid:
3pm MST Nov 22, 2025-6pm MST Nov 28, 2025
 
Forecast Discussion
 
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Chance of Precipitation