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

21°F

-6°C

Humidity 77%
Wind Speed E 3 mph
Barometer 30.40 in
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Last update 10 Nov 5:15 am MST
Extended Forecast for

Saint Marys Glacier CO

  • Today

    Today: Partly sunny, with a high near 35. Breezy, with a west wind 15 to 20 mph, with gusts as high as 31 mph.

    High: 35 °F

    Partly Sunny
    and Breezy

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 24. Breezy, with a west wind 18 to 21 mph, with gusts as high as 33 mph.

    Low: 24 °F

    Decreasing
    Clouds and
    Breezy

  • Veterans Day

    Veterans Day: Sunny, with a high near 35. Breezy, with a west northwest wind 13 to 23 mph, with gusts as high as 34 mph.

    High: 35 °F

    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Clear, with a low around 24. Breezy, with a west wind 18 to 20 mph, with gusts as high as 31 mph.

    Low: 24 °F

    Clear and
    Breezy

  • Thursday

    Thursday: Sunny, with a high near 39. Breezy, with a west wind 15 to 20 mph becoming light in the afternoon. Winds could gust as high as 29 mph.

    High: 39 °F

    Sunny and
    Breezy then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 26. Breezy.

    Low: 26 °F

    Mostly Clear
    then Mostly
    Clear and
    Breezy

  • Friday

    Friday: Mostly sunny, with a high near 39. Breezy.

    High: 39 °F

    Mostly Sunny
    and Breezy
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 34.

    High: 34 °F

    Partly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 35. Breezy, with a west wind 15 to 20 mph, with gusts as high as 31 mph.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 24. Breezy, with a west wind 18 to 21 mph, with gusts as high as 33 mph.
Veterans Day
Sunny, with a high near 35. Breezy, with a west northwest wind 13 to 23 mph, with gusts as high as 34 mph.
Wednesday Night
Clear, with a low around 24. Breezy, with a west wind 18 to 20 mph, with gusts as high as 31 mph.
Thursday
Sunny, with a high near 39. Breezy, with a west wind 15 to 20 mph becoming light in the afternoon. Winds could gust as high as 29 mph.
Thursday Night
Mostly clear, with a low around 26. Breezy.
Friday
Mostly sunny, with a high near 39. Breezy.
Friday Night
Mostly cloudy, with a low around 25.
Saturday
Partly sunny, with a high near 34.
Saturday Night
A chance of snow showers. Mostly cloudy, with a low around 24. Blustery.
Sunday
Mostly sunny, with a high near 33. Breezy.
Sunday Night
Mostly clear, with a low around 23.
Monday
Mostly sunny, with a high near 36.
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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 pm MST Nov 9, 2026
Forecast Valid:
5am MST Nov 10, 2026-6pm MST Nov 16, 2026
 
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