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

58°F

14°C

Humidity 52%
Wind Speed Calm
Barometer 30.49 in
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 8 Sep 9:35 am MDT
Extended Forecast for

Saint Marys Glacier CO

  • Today

    Today: A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 62. Southwest wind 5 to 7 mph.

    High: 62 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 43. West northwest wind 5 to 10 mph, with gusts as high as 18 mph.

    Low: 43 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 62. West northwest wind 5 to 8 mph, with gusts as high as 22 mph.

    High: 62 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 42. North northwest wind 7 to 10 mph becoming west in the evening. Winds could gust as high as 21 mph.

    Low: 42 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 64. Breezy, with a west wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 64 °F

    Sunny then
    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 46. Breezy.

    Low: 46 °F

    Mostly Clear
    and Breezy

  • Friday

    Friday: Mostly sunny, with a high near 63. Breezy.

    High: 63 °F

    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 44.

    Low: 44 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 62. Southwest wind 5 to 7 mph.
Tonight
Mostly clear, with a low around 43. West northwest wind 5 to 10 mph, with gusts as high as 18 mph.
Wednesday
Sunny, with a high near 62. West northwest wind 5 to 8 mph, with gusts as high as 22 mph.
Wednesday Night
Mostly clear, with a low around 42. North northwest wind 7 to 10 mph becoming west in the evening. Winds could gust as high as 21 mph.
Thursday
Sunny, with a high near 64. Breezy, with a west wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday Night
Mostly clear, with a low around 46. Breezy.
Friday
Mostly sunny, with a high near 63. Breezy.
Friday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 44.
Saturday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 60.
Saturday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 45.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 59.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 41.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 56.
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Marys Glacier CO
 39.82°N 105.63°W (Elev. 10735 ft)
Last Update:
3:06 am MDT Sep 8, 2026
Forecast Valid:
9am MDT Sep 8, 2026-6pm MDT Sep 14, 2026
 
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Additional Resources

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