National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Granby-Grand County Airport (KGNB)

Lat: 40.09°NLon: 105.92°WElev: 8207ft.

Light Snow

23°F

-5°C

Humidity 77%
Wind Speed SW 9 G 16 mph
Barometer 30.20 in
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill13°F (-11°C)
Last update 7 Dec 7:35 am MST
Extended Forecast for

3 Miles WNW Saint Marys Glacier CO

  • Today

    Today: A 40 percent chance of snow before 11am. Widespread blowing snow, mainly before noon. Mostly sunny and cold, with a steady temperature around 6. Wind chill values as low as -21. Very windy, with a west northwest wind 31 to 36 mph decreasing to 25 to 30 mph in the afternoon. Winds could gust as high as 55 mph. Total daytime snow accumulation of less than a half inch possible.

    High: 6 °F

    Chance Snow
    and Blowing
    Snow

  • Tonight

    Tonight: A 20 percent chance of snow after 11pm. Mostly cloudy, with a temperature rising to around 9 by 10pm. Wind chill values as low as -15. Windy, with a west wind 23 to 25 mph, with gusts as high as 45 mph.

    Low: 6 °F⇑

    Slight Chance
    Snow and
    Windy

  • Monday

    Monday: A 50 percent chance of snow, mainly before 11am. Partly sunny, with a high near 14. Wind chill values as low as -12. Windy, with a west wind 25 to 30 mph, with gusts as high as 47 mph. New snow accumulation of 1 to 3 inches possible.

    High: 14 °F

    Windy. Chance
    Snow then
    Slight Chance
    Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 10. Wind chill values as low as -11. Windy, with a west wind 29 to 31 mph, with gusts as high as 55 mph.

    Low: 10 °F

    Mostly Cloudy
    and Windy

  • Tuesday

    Tuesday: A 30 percent chance of snow, mainly after 11am. Partly sunny, with a high near 22. Very windy, with a west wind 32 to 38 mph, with gusts as high as 60 mph.

    High: 22 °F

    Chance Snow
    and Very
    Windy

  • Tuesday Night

    Tuesday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 19. Windy.

    Low: 19 °F

    Chance Snow
    and Windy

  • Wednesday

    Wednesday: Snow likely. Mostly cloudy, with a high near 24. Very windy. Chance of precipitation is 60%.

    High: 24 °F

    Snow Likely
    and Very
    Windy

  • Wednesday Night

    Wednesday Night: A chance of snow. Mostly cloudy, with a low around 18. Very windy.

    Low: 18 °F

    Chance Snow
    and Very
    Windy

  • Thursday

    Thursday: Snow likely. Mostly cloudy, with a high near 19. Windy.

    High: 19 °F

    Snow Likely
    and Windy

Detailed Forecast

Today
A 40 percent chance of snow before 11am. Widespread blowing snow, mainly before noon. Mostly sunny and cold, with a steady temperature around 6. Wind chill values as low as -21. Very windy, with a west northwest wind 31 to 36 mph decreasing to 25 to 30 mph in the afternoon. Winds could gust as high as 55 mph. Total daytime snow accumulation of less than a half inch possible.
Tonight
A 20 percent chance of snow after 11pm. Mostly cloudy, with a temperature rising to around 9 by 10pm. Wind chill values as low as -15. Windy, with a west wind 23 to 25 mph, with gusts as high as 45 mph.
Monday
A 50 percent chance of snow, mainly before 11am. Partly sunny, with a high near 14. Wind chill values as low as -12. Windy, with a west wind 25 to 30 mph, with gusts as high as 47 mph. New snow accumulation of 1 to 3 inches possible.
Monday Night
Mostly cloudy, with a low around 10. Wind chill values as low as -11. Windy, with a west wind 29 to 31 mph, with gusts as high as 55 mph.
Tuesday
A 30 percent chance of snow, mainly after 11am. Partly sunny, with a high near 22. Very windy, with a west wind 32 to 38 mph, with gusts as high as 60 mph.
Tuesday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 19. Windy.
Wednesday
Snow likely. Mostly cloudy, with a high near 24. Very windy. Chance of precipitation is 60%.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 18. Very windy.
Thursday
Snow likely. Mostly cloudy, with a high near 19. Windy.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 14. Windy.
Friday
A chance of snow. Partly sunny, with a high near 19. Breezy.
Friday Night
Mostly cloudy, with a low around 12. Breezy.
Saturday
Mostly sunny, with a high near 21. 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:
4:26 am MST Dec 7, 2025
Forecast Valid:
7am MST Dec 7, 2025-6pm MST Dec 13, 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