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Hazardous Weather Conditions
Current conditions at
Granby-Grand County Airport (KGNB)
Lat: 40.09°NLon: 105.92°WElev: 8207ft.
Light Snow
26°F
-3°C
| Humidity | 82% |
| Wind Speed | SW 7 mph |
| Barometer | 29.99 in |
| Dewpoint | 22°F (-6°C) |
| Visibility | 10.00 mi |
| Wind Chill | 18°F (-8°C) |
| Last update | 5 Dec 5:15 pm MST |
Extended Forecast for
3 Miles W Saint Marys Glacier CO
Winter Storm Warning December 5, 11:00pm until December 6, 11:00pm
This Afternoon

High: 11 °F
Chance Snow
and Blowing
SnowTonight

Low: 10 °F⇑
Heavy Snow
and Blowing
SnowSaturday

High: 14 °F⇓
Heavy Snow
and Blowing
SnowSaturday Night

Low: 3 °F
Snow and
Blowing SnowSunday
High: 7 °F
Snow Likely
and Blowing
SnowSunday Night

Low: 6 °F
Slight Chance
Snow and
WindyMonday

High: 12 °F
Chance Snow
and WindyMonday Night

Low: 9 °F
Mostly Cloudy
and WindyTuesday

High: 22 °F
Chance Snow
and Very
Windy
Detailed Forecast
This Afternoon
A 40 percent chance of snow. Widespread blowing snow. Mostly cloudy, with a high near 11. Wind chill values as low as -12. Windy, with a west northwest wind around 26 mph, with gusts as high as 40 mph. Total daytime snow accumulation of 1 to 3 inches possible.
Tonight
Snow, mainly after 9pm. The snow could be heavy at times. Widespread blowing snow, mainly after 9pm. Temperature rising to around 15 by 5am. Wind chill values as low as -14. Windy, with a west wind 30 to 33 mph, with gusts as high as 55 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.
Saturday
Snow. The snow could be heavy at times. Widespread blowing snow. Temperature falling to around 8 by 4pm. Wind chill values as low as -16. Very windy, with a west northwest wind 34 to 39 mph, with gusts as high as 65 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.
Saturday Night
Snow. Widespread blowing snow. Low around 3. Wind chill values as low as -20. Windy, with a west northwest wind 28 to 33 mph, with gusts as high as 49 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Sunday
Snow likely, mainly before 11am. Widespread blowing snow, mainly before 11am. Partly sunny and cold, with a high near 7. Windy, with a west wind 23 to 29 mph, with gusts as high as 43 mph. Chance of precipitation is 60%.
Sunday Night
A 20 percent chance of snow after 11pm. Mostly cloudy, with a low around 6. Windy.
Monday
A 50 percent chance of snow. Partly sunny, with a high near 12. Windy.
Monday Night
Mostly cloudy, with a low around 9. Windy.
Tuesday
A chance of snow. Partly sunny, with a high near 22. Very windy.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 16. Very windy.
Wednesday
Snow likely. Mostly cloudy, with a high near 22. Very windy.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 18. Very windy.
Thursday
A chance of snow. Partly sunny, with a high near 22. Windy.
Thursday Night
Mostly cloudy, with a low around 15. Windy.
Friday
Mostly sunny, with a high near 21. Breezy.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
3 Miles W Saint Marys Glacier CO
39.84°N 105.69°W (Elev. 12507 ft)
39.84°N 105.69°W (Elev. 12507 ft)
2:47 pm MST Dec 5, 2025
5pm MST Dec 5, 2025-6pm MST Dec 12, 2025



