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

28°F

-2°C

Humidity 78%
Wind Speed SE 5 mph
Barometer 30.22 in
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 16 Nov 2:15 am MST
Extended Forecast for

3 Miles W Saint Marys Glacier CO

  • Overnight

    Overnight: Mostly clear, with a low around 25. West wind 10 to 13 mph, with gusts as high as 21 mph.

    Low: 25 °F

    Mostly Clear

  • Sunday

    Sunday: A 30 percent chance of snow showers after 5pm. Mostly sunny, with a high near 36. West wind 9 to 13 mph becoming southeast in the afternoon. Winds could gust as high as 21 mph. New snow accumulation of less than a half inch possible.

    High: 36 °F

    Sunny then
    Chance Snow
    Showers

  • Sunday Night

    Sunday Night: Snow showers likely, mainly after 8pm. Patchy blowing snow after midnight. Mostly cloudy, with a low around 16. Breezy, with a south wind 8 to 13 mph becoming west 19 to 24 mph in the evening. Winds could gust as high as 46 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    Low: 16 °F

    Snow Showers
    Likely and
    Patchy
    Blowing Snow

  • Monday

    Monday: A 50 percent chance of snow showers before 11am. Patchy blowing snow. Partly sunny, with a high near 21. Wind chill values as low as -3. Windy, with a west wind 24 to 29 mph, with gusts as high as 47 mph. New snow accumulation of less than a half inch possible.

    High: 21 °F

    Chance Snow
    Showers and
    Patchy
    Blowing Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 16. Breezy, with a west wind 13 to 21 mph, with gusts as high as 34 mph.

    Low: 16 °F

    Mostly Cloudy
    and Breezy

  • Tuesday

    Tuesday: A 20 percent chance of snow showers after 11am. Mostly cloudy, with a high near 25.

    High: 25 °F

    Slight Chance
    Snow Showers

  • Tuesday Night

    Tuesday Night: A 40 percent chance of snow showers. Mostly cloudy, with a low around 16.

    Low: 16 °F

    Chance Snow
    Showers

  • Wednesday

    Wednesday: Snow showers likely, mainly after 11am. Mostly cloudy, with a high near 22.

    High: 22 °F

    Snow Showers
    Likely

  • Wednesday Night

    Wednesday Night: Snow showers likely. Mostly cloudy, with a low around 12.

    Low: 12 °F

    Snow Showers
    Likely

Detailed Forecast

Overnight
Mostly clear, with a low around 25. West wind 10 to 13 mph, with gusts as high as 21 mph.
Sunday
A 30 percent chance of snow showers after 5pm. Mostly sunny, with a high near 36. West wind 9 to 13 mph becoming southeast in the afternoon. Winds could gust as high as 21 mph. New snow accumulation of less than a half inch possible.
Sunday Night
Snow showers likely, mainly after 8pm. Patchy blowing snow after midnight. Mostly cloudy, with a low around 16. Breezy, with a south wind 8 to 13 mph becoming west 19 to 24 mph in the evening. Winds could gust as high as 46 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Monday
A 50 percent chance of snow showers before 11am. Patchy blowing snow. Partly sunny, with a high near 21. Wind chill values as low as -3. Windy, with a west wind 24 to 29 mph, with gusts as high as 47 mph. New snow accumulation of less than a half inch possible.
Monday Night
Mostly cloudy, with a low around 16. Breezy, with a west wind 13 to 21 mph, with gusts as high as 34 mph.
Tuesday
A 20 percent chance of snow showers after 11am. Mostly cloudy, with a high near 25.
Tuesday Night
A 40 percent chance of snow showers. Mostly cloudy, with a low around 16.
Wednesday
Snow showers likely, mainly after 11am. Mostly cloudy, with a high near 22.
Wednesday Night
Snow showers likely. Mostly cloudy, with a low around 12.
Thursday
A chance of snow. Mostly cloudy, with a high near 17.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 10.
Friday
A chance of snow. Partly sunny, with a high near 17.
Friday Night
A chance of snow showers. Mostly cloudy, with a low around 10. Breezy.
Saturday
A chance of snow showers. Mostly sunny, with a high near 19. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Saint Marys Glacier CO
 39.84°N 105.69°W (Elev. 12507 ft)
Last Update:
2:46 pm MST Nov 15, 2025
Forecast Valid:
2am MST Nov 16, 2025-6pm MST Nov 22, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation