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.

Partly Cloudy

71°F

22°C

Humidity 19%
Wind Speed NE 6 mph
Barometer 30.47 in
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 3 Oct 5:55 pm MDT
Extended Forecast for

3 Miles WNW Saint Marys Glacier CO

  • Tonight

    Tonight: Mostly clear, with a low around 33. East wind 8 to 11 mph becoming west southwest after midnight. Winds could gust as high as 18 mph.

    Low: 33 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 50. West northwest wind 9 to 11 mph, with gusts as high as 18 mph.

    High: 50 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 36. West wind 8 to 13 mph, with gusts as high as 21 mph.

    Low: 36 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 50. Northwest wind 8 to 14 mph, with gusts as high as 25 mph.

    High: 50 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 37. West wind 7 to 14 mph, with gusts as high as 25 mph.

    Low: 37 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of snow showers after noon. Some thunder is also possible. Partly sunny, with a high near 48.

    High: 48 °F

    Partly Sunny
    then Chance
    Snow Showers

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers before midnight. Partly cloudy, with a low around 35.

    Low: 35 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 47.

    High: 47 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 33. East wind 8 to 11 mph becoming west southwest after midnight. Winds could gust as high as 18 mph.
Sunday
Sunny, with a high near 50. West northwest wind 9 to 11 mph, with gusts as high as 18 mph.
Sunday Night
Mostly clear, with a low around 36. West wind 8 to 13 mph, with gusts as high as 21 mph.
Monday
Sunny, with a high near 50. Northwest wind 8 to 14 mph, with gusts as high as 25 mph.
Monday Night
Partly cloudy, with a low around 37. West wind 7 to 14 mph, with gusts as high as 25 mph.
Tuesday
A 30 percent chance of snow showers after noon. Some thunder is also possible. Partly sunny, with a high near 48.
Tuesday Night
A 20 percent chance of showers before midnight. Partly cloudy, with a low around 35.
Wednesday
Sunny, with a high near 47.
Wednesday Night
Mostly clear, with a low around 35.
Thursday
Sunny, with a high near 47.
Thursday Night
Mostly clear, with a low around 34.
Friday
Sunny, with a high near 47.
Friday Night
Mostly clear, with a low around 36. Breezy.
Saturday
Mostly sunny, with a high near 45. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Saint Marys Glacier CO
 39.84°N 105.69°W (Elev. 12507 ft)
Last Update:
12:46 pm MDT Oct 3, 2026
Forecast Valid:
6pm MDT Oct 3, 2026-6pm MDT Oct 10, 2026
 
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