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

57°F

14°C

Humidity 44%
Wind Speed Calm
Barometer 30.61 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 4 Oct 10:55 am MDT
Extended Forecast for

Saint Marys Glacier CO

  • Today

    Today: Sunny, with a high near 54. Northwest wind 6 to 13 mph, with gusts as high as 16 mph.

    High: 54 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 40. Breezy, with a west northwest wind 5 to 15 mph, with gusts as high as 24 mph.

    Low: 40 °F

    Mostly Clear
    then Mostly
    Clear and
    Breezy

  • Monday

    Monday: Sunny, with a high near 54. Breezy, with a northwest wind 8 to 15 mph, with gusts as high as 28 mph.

    High: 54 °F

    Sunny and
    Breezy then
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 40. West wind 7 to 13 mph, with gusts as high as 28 mph.

    Low: 40 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers after noon. Partly sunny, with a high near 53. West wind 6 to 14 mph becoming east in the afternoon. Winds could gust as high as 21 mph.

    High: 53 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers after noon. Mostly sunny, with a high near 52.

    High: 52 °F

    Sunny then
    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 49.

    High: 49 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 54. Northwest wind 6 to 13 mph, with gusts as high as 16 mph.
Tonight
Mostly clear, with a low around 40. Breezy, with a west northwest wind 5 to 15 mph, with gusts as high as 24 mph.
Monday
Sunny, with a high near 54. Breezy, with a northwest wind 8 to 15 mph, with gusts as high as 28 mph.
Monday Night
Partly cloudy, with a low around 40. West wind 7 to 13 mph, with gusts as high as 28 mph.
Tuesday
A 20 percent chance of showers after noon. Partly sunny, with a high near 53. West wind 6 to 14 mph becoming east in the afternoon. Winds could gust as high as 21 mph.
Tuesday Night
Partly cloudy, with a low around 39.
Wednesday
A 20 percent chance of showers after noon. Mostly sunny, with a high near 52.
Wednesday Night
Partly cloudy, with a low around 38.
Thursday
Sunny, with a high near 49.
Thursday Night
Partly cloudy, with a low around 37.
Friday
Sunny, with a high near 50.
Friday Night
Partly cloudy, with a low around 38. Breezy.
Saturday
Sunny, with a high near 49. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Saint Marys Glacier CO
 39.82°N 105.66°W (Elev. 10981 ft)
Last Update:
12:46 am MDT Oct 4, 2026
Forecast Valid:
11am MDT Oct 4, 2026-6pm MDT Oct 10, 2026
 
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Additional Resources

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Chance of Precipitation