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

58°F

14°C

Humidity 30%
Wind Speed SW 9 mph
Barometer 30.18 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 15 Nov 3:55 pm MST
Extended Forecast for

Saint Marys Glacier CO

  • Tonight

    Tonight: Partly cloudy, with a low around 31. West wind 10 to 14 mph, with gusts as high as 22 mph.

    Low: 31 °F

    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of snow showers after 5pm. Mostly sunny, with a high near 43. Breezy, with a west wind 8 to 15 mph becoming southeast in the afternoon. Winds could gust as high as 24 mph. New snow accumulation of less than a half inch possible.

    High: 43 °F

    Sunny and
    Breezy then
    Chance Snow
    Showers

  • Sunday Night

    Sunday Night: Snow showers likely, mainly after 8pm. Patchy blowing snow after 11pm. Mostly cloudy, with a low around 24. Windy, with a south wind 7 to 12 mph becoming west 20 to 30 mph. Winds could gust as high as 55 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    Low: 24 °F

    Snow Showers
    Likely and
    Patchy
    Blowing Snow

  • Monday

    Monday: A 40 percent chance of snow showers before 11am. Patchy blowing snow. Mostly sunny, with a high near 28. Very windy, with a west wind 31 to 36 mph decreasing to 24 to 29 mph in the afternoon. Winds could gust as high as 55 mph. New snow accumulation of less than a half inch possible.

    High: 28 °F

    Chance Snow
    Showers and
    Patchy
    Blowing Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 21. Breezy, with a west wind 18 to 24 mph, with gusts as high as 38 mph.

    Low: 21 °F

    Mostly Cloudy
    and Breezy

  • Tuesday

    Tuesday: A 20 percent chance of snow showers after 11am. Partly sunny, with a high near 32. Breezy.

    High: 32 °F

    Slight Chance
    Snow Showers
    and Breezy

  • Tuesday Night

    Tuesday Night: A 40 percent chance of snow showers. Mostly cloudy, with a low around 21.

    Low: 21 °F

    Chance Snow
    Showers

  • Wednesday

    Wednesday: Snow showers likely, mainly after 11am. Mostly cloudy, with a high near 28.

    High: 28 °F

    Snow Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of snow showers. Mostly cloudy, with a low around 18.

    Low: 18 °F

    Chance Snow
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 31. West wind 10 to 14 mph, with gusts as high as 22 mph.
Sunday
A 30 percent chance of snow showers after 5pm. Mostly sunny, with a high near 43. Breezy, with a west wind 8 to 15 mph becoming southeast in the afternoon. Winds could gust as high as 24 mph. New snow accumulation of less than a half inch possible.
Sunday Night
Snow showers likely, mainly after 8pm. Patchy blowing snow after 11pm. Mostly cloudy, with a low around 24. Windy, with a south wind 7 to 12 mph becoming west 20 to 30 mph. Winds could gust as high as 55 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Monday
A 40 percent chance of snow showers before 11am. Patchy blowing snow. Mostly sunny, with a high near 28. Very windy, with a west wind 31 to 36 mph decreasing to 24 to 29 mph in the afternoon. Winds could gust as high as 55 mph. New snow accumulation of less than a half inch possible.
Monday Night
Mostly cloudy, with a low around 21. Breezy, with a west wind 18 to 24 mph, with gusts as high as 38 mph.
Tuesday
A 20 percent chance of snow showers after 11am. Partly sunny, with a high near 32. Breezy.
Tuesday Night
A 40 percent chance of snow showers. Mostly cloudy, with a low around 21.
Wednesday
Snow showers likely, mainly after 11am. Mostly cloudy, with a high near 28.
Wednesday Night
A chance of snow showers. Mostly cloudy, with a low around 18.
Thursday
A chance of snow. Partly sunny, with a high near 24. Breezy.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 16.
Friday
A chance of snow. Partly sunny, with a high near 24. Breezy.
Friday Night
A chance of snow showers. Partly cloudy, with a low around 15. Breezy.
Saturday
A slight chance of snow showers. Mostly sunny, with a high near 25. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Saint Marys Glacier CO
 39.85°N 105.63°W (Elev. 11368 ft)
Last Update:
2:46 pm MST Nov 15, 2025
Forecast Valid:
4pm MST Nov 15, 2025-6pm MST Nov 22, 2025
 
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Additional Resources

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Chance of Precipitation