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

47°F

8°C

Humidity 66%
Wind Speed SE 3 mph
Barometer 30.06 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 12 Oct 4:55 am MDT
Extended Forecast for

3 Miles WNW Saint Marys Glacier CO

  • Columbus Day

    Columbus Day: Sunny, with a high near 46. Breezy, with a west wind 16 to 21 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 40 mph.

    High: 46 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 31. Southwest wind 8 to 11 mph, with gusts as high as 20 mph.

    Low: 31 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 40 percent chance of snow showers. Partly sunny, with a high near 45. Southwest wind 7 to 14 mph becoming southeast in the afternoon. Winds could gust as high as 26 mph. Little or no snow accumulation expected.

    High: 45 °F

    Chance Snow
    Showers

  • Tuesday Night

    Tuesday Night: Snow showers. Some thunder is also possible. Low around 25. East southeast wind 8 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    Low: 25 °F

    Snow Showers

  • Wednesday

    Wednesday: Snow showers. Some thunder is also possible. High near 34. Breezy, with an east southeast wind 9 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 90%.

    High: 34 °F

    Snow Showers
    and Breezy

  • Wednesday Night

    Wednesday Night: Snow showers, mainly before midnight. Low around 21. Chance of precipitation is 80%.

    Low: 21 °F

    Snow Showers
    then Chance
    Snow Showers

  • Thursday

    Thursday: A 50 percent chance of snow showers. Partly sunny, with a high near 25.

    High: 25 °F

    Chance Snow
    Showers

  • Thursday Night

    Thursday Night: A chance of snow showers before midnight. Partly cloudy, with a low around 17.

    Low: 17 °F

    Chance Snow
    Showers then
    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 32.

    High: 32 °F

    Sunny

Detailed Forecast

Columbus Day
Sunny, with a high near 46. Breezy, with a west wind 16 to 21 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 40 mph.
Tonight
Mostly clear, with a low around 31. Southwest wind 8 to 11 mph, with gusts as high as 20 mph.
Tuesday
A 40 percent chance of snow showers. Partly sunny, with a high near 45. Southwest wind 7 to 14 mph becoming southeast in the afternoon. Winds could gust as high as 26 mph. Little or no snow accumulation expected.
Tuesday Night
Snow showers. Some thunder is also possible. Low around 25. East southeast wind 8 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Wednesday
Snow showers. Some thunder is also possible. High near 34. Breezy, with an east southeast wind 9 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 90%.
Wednesday Night
Snow showers, mainly before midnight. Low around 21. Chance of precipitation is 80%.
Thursday
A 50 percent chance of snow showers. Partly sunny, with a high near 25.
Thursday Night
A chance of snow showers before midnight. Partly cloudy, with a low around 17.
Friday
Sunny, with a high near 32.
Friday Night
Mostly clear, with a low around 22. Breezy.
Saturday
Sunny, with a high near 38. Breezy.
Saturday Night
Mostly clear, with a low around 26. Blustery.
Sunday
Mostly sunny, with a high near 39. Breezy.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

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 am MDT Oct 12, 2026
Forecast Valid:
5am MDT Oct 12, 2026-6pm MDT Oct 18, 2026
 
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