National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Granby-Grand County Airport (KGNB)

Lat: 40.09°NLon: 105.92°WElev: 8207ft.

Fair

35°F

2°C

Humidity 58%
Wind Speed Calm
Barometer 30.43 in
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Last update 7 Nov 8:15 pm MST
Extended Forecast for

Saint Marys Glacier CO

  • Tonight

    Tonight: Mostly clear, with a low around 26. West wind 5 to 9 mph, with gusts as high as 20 mph.

    Low: 26 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 47. Breezy, with a west northwest wind 7 to 15 mph, with gusts as high as 25 mph.

    High: 47 °F

    Sunny and
    Breezy then
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 30. Breezy, with a west wind 16 to 20 mph, with gusts as high as 32 mph.

    Low: 30 °F

    Mostly Clear
    and Breezy

  • Monday

    Monday: Sunny, with a high near 49. Breezy, with a west wind 11 to 16 mph becoming light northwest in the afternoon. Winds could gust as high as 28 mph.

    High: 49 °F

    Sunny and
    Breezy then
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 30. West wind 8 to 13 mph, with gusts as high as 24 mph.

    Low: 30 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 43. Breezy.

    High: 43 °F

    Mostly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 27. Breezy.

    Low: 27 °F

    Mostly Clear
    and Breezy

  • Veterans Day

    Veterans Day: Sunny, with a high near 41. Breezy.

    High: 41 °F

    Sunny and
    Breezy then
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 27. Breezy.

    Low: 27 °F

    Mostly Clear
    and Breezy

Detailed Forecast

Tonight
Mostly clear, with a low around 26. West wind 5 to 9 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 47. Breezy, with a west northwest wind 7 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 30. Breezy, with a west wind 16 to 20 mph, with gusts as high as 32 mph.
Monday
Sunny, with a high near 49. Breezy, with a west wind 11 to 16 mph becoming light northwest in the afternoon. Winds could gust as high as 28 mph.
Monday Night
Mostly clear, with a low around 30. West wind 8 to 13 mph, with gusts as high as 24 mph.
Tuesday
Mostly sunny, with a high near 43. Breezy.
Tuesday Night
Mostly clear, with a low around 27. Breezy.
Veterans Day
Sunny, with a high near 41. Breezy.
Wednesday Night
Mostly clear, with a low around 27. Breezy.
Thursday
Sunny, with a high near 46. Breezy.
Thursday Night
Mostly clear, with a low around 29.
Friday
Sunny, with a high near 47.
Friday Night
Mostly clear, with a low around 31. Breezy.
Saturday
Mostly sunny, with a high near 44. 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:
11:47 am MST Nov 7, 2026
Forecast Valid:
8pm MST Nov 7, 2026-6pm MST Nov 14, 2026
 
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