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

29°F

-2°C

Humidity 80%
Wind Speed SE 5 mph
Barometer 30.49 in
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 4 Apr 11:35 pm MDT
Extended Forecast for

Saint Marys Glacier CO

  • Tonight

    Tonight: Mostly clear, with a low around 21. West southwest wind around 7 mph.

    Low: 21 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 43. West wind 6 to 13 mph becoming east southeast in the afternoon. Winds could gust as high as 21 mph.

    High: 43 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 26. Southeast wind 5 to 11 mph becoming west after midnight. Winds could gust as high as 18 mph.

    Low: 26 °F

    Mostly Clear

  • Monday

    Monday: A 30 percent chance of snow showers after noon. Mostly sunny, with a high near 46. West wind 9 to 14 mph, with gusts as high as 22 mph. Little or no snow accumulation expected.

    High: 46 °F

    Mostly Sunny
    then Chance
    Snow Showers

  • Monday Night

    Monday Night: A 30 percent chance of snow showers before midnight. Mostly cloudy, with a low around 26. Northwest wind 6 to 10 mph becoming west southwest after midnight. Winds could gust as high as 24 mph.

    Low: 26 °F

    Chance Snow
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: Snow showers likely, mainly after noon. Mostly cloudy, with a high near 44. Windy. Chance of precipitation is 60%.

    High: 44 °F

    Snow Showers
    Likely and
    Windy

  • Tuesday Night

    Tuesday Night: A 40 percent chance of snow showers before midnight. Partly cloudy, with a low around 30. Windy.

    Low: 30 °F

    Chance Snow
    Showers and
    Windy then
    Mostly Clear
    and Breezy

  • Wednesday

    Wednesday: A chance of snow showers after noon. Mostly sunny, with a high near 46. Very windy.

    High: 46 °F

    Very Windy.
    Sunny then
    Chance Snow
    Showers

  • Wednesday Night

    Wednesday Night: A chance of snow showers. Mostly cloudy, with a low around 27. Windy.

    Low: 27 °F

    Chance Snow
    Showers and
    Windy

Detailed Forecast

Tonight
Mostly clear, with a low around 21. West southwest wind around 7 mph.
Sunday
Sunny, with a high near 43. West wind 6 to 13 mph becoming east southeast in the afternoon. Winds could gust as high as 21 mph.
Sunday Night
Mostly clear, with a low around 26. Southeast wind 5 to 11 mph becoming west after midnight. Winds could gust as high as 18 mph.
Monday
A 30 percent chance of snow showers after noon. Mostly sunny, with a high near 46. West wind 9 to 14 mph, with gusts as high as 22 mph. Little or no snow accumulation expected.
Monday Night
A 30 percent chance of snow showers before midnight. Mostly cloudy, with a low around 26. Northwest wind 6 to 10 mph becoming west southwest after midnight. Winds could gust as high as 24 mph.
Tuesday
Snow showers likely, mainly after noon. Mostly cloudy, with a high near 44. Windy. Chance of precipitation is 60%.
Tuesday Night
A 40 percent chance of snow showers before midnight. Partly cloudy, with a low around 30. Windy.
Wednesday
A chance of snow showers after noon. Mostly sunny, with a high near 46. Very windy.
Wednesday Night
A chance of snow showers. Mostly cloudy, with a low around 27. Windy.
Thursday
A chance of snow showers before noon, then rain and snow showers likely. Partly sunny, with a high near 44. Windy.
Thursday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 28. Breezy.
Friday
Rain and snow showers. Mostly cloudy, with a high near 43. Breezy.
Friday Night
Rain and snow showers likely. Mostly cloudy, with a low around 27.
Saturday
Snow showers. Mostly cloudy, with a high near 40. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Marys Glacier CO
 39.82°N 105.63°W (Elev. 10735 ft)
Last Update:
12:45 pm MDT Apr 4, 2026
Forecast Valid:
11pm MDT Apr 4, 2026-6pm MDT Apr 11, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation