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

42°F

6°C

Humidity 54%
Wind Speed Calm
Barometer 29.97 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 20 Nov 5:15 pm MST
Extended Forecast for

3 Miles WNW Saint Marys Glacier CO

  • This Afternoon

    This Afternoon: A 50 percent chance of snow showers. Cloudy, with a steady temperature around 23. East southeast wind around 11 mph, with gusts as high as 18 mph. Total daytime snow accumulation of less than one inch possible.

    High: 23 °F

    Chance Snow
    Showers

  • Tonight

    Tonight: Snow showers likely. Cloudy, with a low around 20. East wind 6 to 9 mph becoming northwest after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    Low: 20 °F

    Snow Showers
    Likely

  • Friday

    Friday: Snow showers likely, mainly before 2pm. Cloudy, with a high near 21. West northwest wind 8 to 10 mph, with gusts as high as 17 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    High: 21 °F

    Snow Showers
    Likely

  • Friday Night

    Friday Night: A 20 percent chance of snow showers before 11pm. Mostly cloudy, with a low around 15. West wind 9 to 13 mph, with gusts as high as 23 mph.

    Low: 15 °F

    Slight Chance
    Snow Showers
    then Partly
    Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 27. West wind 6 to 13 mph, with gusts as high as 22 mph.

    High: 27 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 17.

    Low: 17 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 40 percent chance of snow showers, mainly after 11am. Mostly cloudy, with a high near 24.

    High: 24 °F

    Chance Snow
    Showers

  • Sunday Night

    Sunday Night: A chance of snow showers. Mostly cloudy, with a low around 12. Breezy.

    Low: 12 °F

    Chance Snow
    Showers and
    Breezy

  • Monday

    Monday: A slight chance of snow showers before 11am. Mostly sunny, with a high near 18. Breezy.

    High: 18 °F

    Breezy.
    Slight Chance
    Snow Showers
    then Mostly
    Sunny

Detailed Forecast

This Afternoon
A 50 percent chance of snow showers. Cloudy, with a steady temperature around 23. East southeast wind around 11 mph, with gusts as high as 18 mph. Total daytime snow accumulation of less than one inch possible.
Tonight
Snow showers likely. Cloudy, with a low around 20. East wind 6 to 9 mph becoming northwest after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Friday
Snow showers likely, mainly before 2pm. Cloudy, with a high near 21. West northwest wind 8 to 10 mph, with gusts as high as 17 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Friday Night
A 20 percent chance of snow showers before 11pm. Mostly cloudy, with a low around 15. West wind 9 to 13 mph, with gusts as high as 23 mph.
Saturday
Mostly sunny, with a high near 27. West wind 6 to 13 mph, with gusts as high as 22 mph.
Saturday Night
Mostly cloudy, with a low around 17.
Sunday
A 40 percent chance of snow showers, mainly after 11am. Mostly cloudy, with a high near 24.
Sunday Night
A chance of snow showers. Mostly cloudy, with a low around 12. Breezy.
Monday
A slight chance of snow showers before 11am. Mostly sunny, with a high near 18. Breezy.
Monday Night
A slight chance of snow showers after 11pm. Mostly cloudy, with a low around 5. Breezy.
Tuesday
A chance of snow showers. Partly sunny and cold, with a high near 10. Breezy.
Tuesday Night
A chance of snow showers. Mostly cloudy, with a low around 3.
Wednesday
A chance of snow showers. Partly sunny, with a high near 15. Breezy.
Wednesday Night
A chance of snow showers. Mostly cloudy, with a low around 12. Breezy.
Thanksgiving Day
A chance of snow showers. Partly sunny, with a high near 16. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Saint Marys Glacier CO
 39.84°N 105.69°W (Elev. 12507 ft)
Last Update:
2:06 pm MST Nov 20, 2025
Forecast Valid:
5pm MST Nov 20, 2025-6pm MST Nov 27, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation