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

48°F

9°C

Humidity 35%
Wind Speed Calm
Barometer 30.43 in
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 8 Nov 11:35 am MST
Extended Forecast for

Saint Marys Glacier CO

  • Today

    Today: Sunny, with a high near 40. West northwest wind 10 to 14 mph, with gusts as high as 22 mph.

    High: 40 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 26. Breezy, with a west wind 20 to 23 mph, with gusts as high as 38 mph.

    Low: 26 °F

    Mostly Clear
    and Breezy

  • Monday

    Monday: Sunny, with a high near 41. Breezy, with a northwest wind 12 to 17 mph decreasing to 6 to 11 mph in the afternoon. Winds could gust as high as 29 mph.

    High: 41 °F

    Sunny and
    Breezy then
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 28. Breezy, with a west wind 11 to 18 mph, with gusts as high as 30 mph.

    Low: 28 °F

    Partly Cloudy
    and Breezy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 36. Breezy, with a west wind 20 to 22 mph, with gusts as high as 37 mph.

    High: 36 °F

    Mostly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 24. Windy.

    Low: 24 °F

    Mostly Clear
    and Windy

  • Veterans Day

    Veterans Day: Sunny, with a high near 35. Windy.

    High: 35 °F

    Sunny and
    Windy then
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 25. Breezy.

    Low: 25 °F

    Mostly Clear
    and Breezy

  • Thursday

    Thursday: Sunny, with a high near 38. Breezy.

    High: 38 °F

    Sunny and
    Breezy then
    Sunny

Detailed Forecast

Today
Sunny, with a high near 40. West northwest wind 10 to 14 mph, with gusts as high as 22 mph.
Tonight
Mostly clear, with a low around 26. Breezy, with a west wind 20 to 23 mph, with gusts as high as 38 mph.
Monday
Sunny, with a high near 41. Breezy, with a northwest wind 12 to 17 mph decreasing to 6 to 11 mph in the afternoon. Winds could gust as high as 29 mph.
Monday Night
Partly cloudy, with a low around 28. Breezy, with a west wind 11 to 18 mph, with gusts as high as 30 mph.
Tuesday
Mostly sunny, with a high near 36. Breezy, with a west wind 20 to 22 mph, with gusts as high as 37 mph.
Tuesday Night
Mostly clear, with a low around 24. Windy.
Veterans Day
Sunny, with a high near 35. Windy.
Wednesday Night
Mostly clear, with a low around 25. Breezy.
Thursday
Sunny, with a high near 38. Breezy.
Thursday Night
Mostly clear, with a low around 27.
Friday
Sunny, with a high near 40. Breezy.
Friday Night
Partly cloudy, with a low around 26. Breezy.
Saturday
Mostly sunny, with a high near 37. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Marys Glacier CO
 39.84°N 105.66°W (Elev. 11798 ft)
Last Update:
11:46 am MST Nov 8, 2026
Forecast Valid:
11am MST Nov 8, 2026-6pm MST Nov 14, 2026
 
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