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.

Overcast

10°F

-12°C

Humidity 87%
Wind Speed Calm
Barometer 30.07 in
Dewpoint 6°F (-14°C)
Visibility 10.00 mi
Last update 2 Dec 3:35 am MST
Extended Forecast for

4 Miles W Saint Marys Glacier CO

  • Overnight

    Overnight: Partly cloudy, with a steady temperature around 7. Wind chill values as low as -16. Windy, with a west wind around 25 mph, with gusts as high as 38 mph.

    Low: 7 °F

    Partly Cloudy
    and Windy

  • Tuesday

    Tuesday: A 50 percent chance of snow, mainly after 7am. Increasing clouds, with a high near 13. Wind chill values as low as -13. Breezy, with a west wind 18 to 23 mph, with gusts as high as 34 mph. New snow accumulation of less than one inch possible.

    High: 13 °F

    Chance Snow
    and Breezy

  • Tuesday Night

    Tuesday Night: Snow. Low around 4. Wind chill values as low as -7. Blustery, with a west northwest wind 6 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    Low: 4 °F

    Snow and
    Blustery

  • Wednesday

    Wednesday: Snow. High near 8. Wind chill values as low as -14. East wind 7 to 10 mph becoming south southwest in the afternoon. Winds could gust as high as 16 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

    High: 8 °F

    Snow

  • Wednesday Night

    Wednesday Night: A 40 percent chance of snow before 11pm. Mostly cloudy, with a low around -4. Breezy, with a west wind 8 to 16 mph, with gusts as high as 23 mph.

    Low: -4 °F

    Chance Snow
    then Partly
    Cloudy and
    Breezy

  • Thursday

    Thursday: Mostly sunny and cold, with a high near 6. Breezy.

    High: 6 °F

    Cold and
    Breezy

  • Thursday Night

    Thursday Night: A 30 percent chance of snow after 11pm. Mostly cloudy, with a low around 3. Windy.

    Low: 3 °F

    Chance Snow
    and Windy

  • Friday

    Friday: Snow likely. Mostly cloudy, with a high near 11. Breezy.

    High: 11 °F

    Snow Likely
    and Breezy

  • Friday Night

    Friday Night: Snow likely, mainly after 11pm. Mostly cloudy, with a low around 10. Windy.

    Low: 10 °F

    Snow Likely
    and Windy

Detailed Forecast

Overnight
Partly cloudy, with a steady temperature around 7. Wind chill values as low as -16. Windy, with a west wind around 25 mph, with gusts as high as 38 mph.
Tuesday
A 50 percent chance of snow, mainly after 7am. Increasing clouds, with a high near 13. Wind chill values as low as -13. Breezy, with a west wind 18 to 23 mph, with gusts as high as 34 mph. New snow accumulation of less than one inch possible.
Tuesday Night
Snow. Low around 4. Wind chill values as low as -7. Blustery, with a west northwest wind 6 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Wednesday
Snow. High near 8. Wind chill values as low as -14. East wind 7 to 10 mph becoming south southwest in the afternoon. Winds could gust as high as 16 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Wednesday Night
A 40 percent chance of snow before 11pm. Mostly cloudy, with a low around -4. Breezy, with a west wind 8 to 16 mph, with gusts as high as 23 mph.
Thursday
Mostly sunny and cold, with a high near 6. Breezy.
Thursday Night
A 30 percent chance of snow after 11pm. Mostly cloudy, with a low around 3. Windy.
Friday
Snow likely. Mostly cloudy, with a high near 11. Breezy.
Friday Night
Snow likely, mainly after 11pm. Mostly cloudy, with a low around 10. Windy.
Saturday
Snow. Mostly cloudy, with a high near 14. Windy.
Saturday Night
Snow likely. Mostly cloudy, with a low around 9. Windy.
Sunday
A chance of snow. Partly sunny, with a high near 12. Breezy.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 7. Windy.
Monday
A chance of snow. Partly sunny, with a high near 13. Breezy.
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:
3:26 am MST Dec 2, 2025
Forecast Valid:
3am MST Dec 2, 2025-6pm MST Dec 8, 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