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

22°F

-6°C

Humidity 72%
Wind Speed Calm
Barometer 29.91 in
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Last update 14 Nov 3:35 am MST
Extended Forecast for

3 Miles WNW Saint Marys Glacier CO

  • Overnight

    Overnight: Mostly cloudy, with a low around 22. West wind around 7 mph.

    Low: 22 °F

    Mostly Cloudy

  • Saturday

    Saturday: Snow, mainly after 2pm. High near 26. South southeast wind 6 to 8 mph becoming north northwest in the afternoon. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    High: 26 °F

    Chance Snow
    then Snow

  • Saturday Night

    Saturday Night: Snow, mainly before 11pm. Low around 21. West northwest wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 21 °F

    Snow then
    Chance Snow

  • Sunday

    Sunday: Sunny, with a high near 29. Northwest wind 6 to 11 mph, with gusts as high as 18 mph.

    High: 29 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 24. Breezy, with a west wind 11 to 16 mph, with gusts as high as 25 mph.

    Low: 24 °F

    Mostly Clear
    and Breezy

  • Monday

    Monday: Mostly sunny, with a high near 37.

    High: 37 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of snow showers after 11pm. Mostly cloudy, with a low around 20.

    Low: 20 °F

    Chance Snow
    Showers

Detailed Forecast

Overnight
Mostly cloudy, with a low around 22. West wind around 7 mph.
Saturday
Snow, mainly after 2pm. High near 26. South southeast wind 6 to 8 mph becoming north northwest in the afternoon. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Saturday Night
Snow, mainly before 11pm. Low around 21. West northwest wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Sunday
Sunny, with a high near 29. Northwest wind 6 to 11 mph, with gusts as high as 18 mph.
Sunday Night
Mostly clear, with a low around 24. Breezy, with a west wind 11 to 16 mph, with gusts as high as 25 mph.
Monday
Mostly sunny, with a high near 37.
Monday Night
Partly cloudy, with a low around 26.
Tuesday
Mostly sunny, with a high near 36.
Tuesday Night
A chance of snow showers after 11pm. Mostly cloudy, with a low around 20.
Wednesday
A chance of snow showers. Partly sunny, with a high near 24. Breezy.
Wednesday Night
A slight chance of snow showers. Partly cloudy, with a low around 15. Breezy.
Thursday
Mostly sunny, with a high near 26.
Thursday Night
A chance of snow showers. Mostly cloudy, with a low around 16.
Friday
Snow showers likely. Partly sunny, with a high near 22. 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:
11:46 pm MST Nov 13, 2026
Forecast Valid:
3am MST Nov 14, 2026-6pm MST Nov 20, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation