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

25°F

-4°C

Humidity 73%
Wind Speed SW 8 mph
Barometer 30.28 in
Dewpoint 17°F (-8°C)
Visibility 5.00 mi
Wind Chill16°F (-9°C)
Last update 7 Dec 10:15 am MST
Extended Forecast for

4 Miles W Saint Marys Glacier CO

  • Today

    Today: A 40 percent chance of snow before 11am. Patchy blowing snow. Mostly sunny and cold, with a high near 8. Wind chill values as low as -19. Windy, with a west northwest wind 23 to 25 mph, with gusts as high as 38 mph. Total daytime snow accumulation of less than a half inch possible.

    High: 8 °F

    Chance Snow
    and Patchy
    Blowing Snow

  • Tonight

    Tonight: A 20 percent chance of snow after 11pm. Mostly cloudy, with a low around 6. Wind chill values as low as -16. Windy, with a west wind 23 to 28 mph, with gusts as high as 37 mph.

    Low: 6 °F

    Slight Chance
    Snow and
    Windy

  • Monday

    Monday: A 50 percent chance of snow, mainly before 11am. Partly sunny, with a high near 12. Wind chill values as low as -14. Windy, with a west wind 24 to 26 mph, with gusts as high as 41 mph. New snow accumulation of around an inch possible.

    High: 12 °F

    Windy. Chance
    Snow then
    Slight Chance
    Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 11. Wind chill values as low as -11. Windy, with a west wind 29 to 34 mph, with gusts as high as 48 mph.

    Low: 11 °F

    Mostly Cloudy
    and Windy

  • Tuesday

    Tuesday: A 30 percent chance of snow, mainly after 11am. Partly sunny, with a high near 22. Windy, with a west wind 30 to 34 mph, with gusts as high as 50 mph.

    High: 22 °F

    Chance Snow
    and Windy

  • Tuesday Night

    Tuesday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 19. Windy.

    Low: 19 °F

    Chance Snow
    and Windy

  • Wednesday

    Wednesday: Snow likely. Mostly cloudy, with a high near 25. Windy. Chance of precipitation is 60%.

    High: 25 °F

    Snow Likely
    and Windy

  • Wednesday Night

    Wednesday Night: Snow likely, mainly after 11pm. Mostly cloudy, with a low around 17. Very windy.

    Low: 17 °F

    Snow Likely
    and Very
    Windy

  • Thursday

    Thursday: Snow likely. Mostly cloudy, with a high near 20. Windy.

    High: 20 °F

    Snow Likely
    and Windy

Detailed Forecast

Today
A 40 percent chance of snow before 11am. Patchy blowing snow. Mostly sunny and cold, with a high near 8. Wind chill values as low as -19. Windy, with a west northwest wind 23 to 25 mph, with gusts as high as 38 mph. Total daytime snow accumulation of less than a half inch possible.
Tonight
A 20 percent chance of snow after 11pm. Mostly cloudy, with a low around 6. Wind chill values as low as -16. Windy, with a west wind 23 to 28 mph, with gusts as high as 37 mph.
Monday
A 50 percent chance of snow, mainly before 11am. Partly sunny, with a high near 12. Wind chill values as low as -14. Windy, with a west wind 24 to 26 mph, with gusts as high as 41 mph. New snow accumulation of around an inch possible.
Monday Night
Mostly cloudy, with a low around 11. Wind chill values as low as -11. Windy, with a west wind 29 to 34 mph, with gusts as high as 48 mph.
Tuesday
A 30 percent chance of snow, mainly after 11am. Partly sunny, with a high near 22. Windy, with a west wind 30 to 34 mph, with gusts as high as 50 mph.
Tuesday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 19. Windy.
Wednesday
Snow likely. Mostly cloudy, with a high near 25. Windy. Chance of precipitation is 60%.
Wednesday Night
Snow likely, mainly after 11pm. Mostly cloudy, with a low around 17. Very windy.
Thursday
Snow likely. Mostly cloudy, with a high near 20. Windy.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 14. Windy.
Friday
A chance of snow. Partly sunny, with a high near 17. Breezy.
Friday Night
Mostly cloudy, with a low around 12. Breezy.
Saturday
Mostly sunny, with a high near 20. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Saint Marys Glacier CO
 39.84°N 105.72°W (Elev. 12260 ft)
Last Update:
4:26 am MST Dec 7, 2025
Forecast Valid:
10am MST Dec 7, 2025-6pm MST Dec 13, 2025
 
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Additional Resources

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