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

36°F

2°C

Humidity 41%
Wind Speed Calm
Barometer 30.35 in
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Last update 12 Nov 10:15 pm MST
Extended Forecast for

4 Miles W Saint Marys Glacier CO

  • Tonight

    Tonight: Partly cloudy, with a low around 24. Blustery, with a west northwest wind 13 to 15 mph, with gusts as high as 24 mph.

    Low: 24 °F

    Mostly Cloudy
    then Partly
    Cloudy and
    Blustery

  • Thursday

    Thursday: Sunny, with a high near 35. Breezy, with a west wind 14 to 17 mph, with gusts as high as 28 mph.

    High: 35 °F

    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 26. Breezy, with a west wind 15 to 17 mph, with gusts as high as 25 mph.

    Low: 26 °F

    Mostly Clear
    and Breezy

  • Friday

    Friday: Mostly sunny, with a high near 35. Breezy, with a west wind 14 to 16 mph, with gusts as high as 29 mph.

    High: 35 °F

    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 25. Breezy, with a west wind 18 to 21 mph, with gusts as high as 29 mph.

    Low: 25 °F

    Partly Cloudy
    and Breezy

  • Saturday

    Saturday: Partly sunny, with a high near 33. Breezy.

    High: 33 °F

    Partly Sunny
    and Breezy
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 23.

    Low: 23 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of snow showers after 11am. Partly sunny, with a high near 33.

    High: 33 °F

    Chance Snow
    Showers

  • Sunday Night

    Sunday Night: Snow showers. Mostly cloudy, with a low around 16. Breezy.

    Low: 16 °F

    Snow Showers
    and Breezy

Detailed Forecast

Tonight
Partly cloudy, with a low around 24. Blustery, with a west northwest wind 13 to 15 mph, with gusts as high as 24 mph.
Thursday
Sunny, with a high near 35. Breezy, with a west wind 14 to 17 mph, with gusts as high as 28 mph.
Thursday Night
Mostly clear, with a low around 26. Breezy, with a west wind 15 to 17 mph, with gusts as high as 25 mph.
Friday
Mostly sunny, with a high near 35. Breezy, with a west wind 14 to 16 mph, with gusts as high as 29 mph.
Friday Night
Partly cloudy, with a low around 25. Breezy, with a west wind 18 to 21 mph, with gusts as high as 29 mph.
Saturday
Partly sunny, with a high near 33. Breezy.
Saturday Night
Partly cloudy, with a low around 23.
Sunday
A chance of snow showers after 11am. Partly sunny, with a high near 33.
Sunday Night
Snow showers. Mostly cloudy, with a low around 16. Breezy.
Monday
Snow showers likely, mainly before 11am. Mostly cloudy, with a high near 20. Breezy.
Monday Night
A chance of snow showers. Mostly cloudy, with a low around 14. Breezy.
Tuesday
Snow showers likely. Mostly cloudy, with a high near 21.
Tuesday Night
Snow showers likely. Mostly cloudy, with a low around 10.
Wednesday
Snow showers likely. Mostly cloudy, with a high near 16.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Saint Marys Glacier CO
 39.84°N 105.72°W (Elev. 12260 ft)
Last Update:
2:31 pm MST Nov 12, 2025
Forecast Valid:
10pm MST Nov 12, 2025-6pm MST Nov 19, 2025
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation