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 89%
Wind Speed Calm
Barometer 29.93 in
Dewpoint 20°F (-7°C)
Visibility 2.50 mi
Last update 2 Dec 8:35 pm MST
Extended Forecast for

4 Miles W Saint Marys Glacier CO

  • Tonight

    Tonight: Snow. Low around 6. Wind chill values as low as -1. West northwest wind 7 to 11 mph becoming south southwest after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 1 to 3 inches possible.

    Low: 6 °F

    Snow

  • Wednesday

    Wednesday: Snow. Temperature falling to around 1 by 4pm. Wind chill values as low as -13. East southeast wind 7 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

    High: 8 °F⇓

    Snow

  • Wednesday Night

    Wednesday Night: Snow likely, mainly before 8pm. Partly cloudy, with a steady temperature around 2. Wind chill values as low as -20. South wind 8 to 14 mph becoming west after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 2 °F

    Snow Likely
    then Partly
    Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow. Patchy blowing snow between 9am and 4pm. Mostly sunny and cold, with a high near 6. Wind chill values as low as -23. Breezy, with a west wind 18 to 23 mph, with gusts as high as 34 mph.

    High: 6 °F

    Slight Chance
    Snow and
    Patchy
    Blowing Snow

  • Thursday Night

    Thursday Night: A 30 percent chance of snow after 11pm. Mostly cloudy, with a low around 2. Windy, with a west wind 23 to 25 mph, with gusts as high as 38 mph.

    Low: 2 °F

    Chance Snow
    and Windy

  • Friday

    Friday: Snow likely, mainly after 11am. Mostly cloudy, with a high near 13. Breezy. Chance of precipitation is 60%.

    High: 13 °F

    Snow Likely
    and Breezy

  • Friday Night

    Friday Night: Snow likely, mainly after 11pm. Mostly cloudy, with a low around 7. Windy. Chance of precipitation is 60%.

    Low: 7 °F

    Snow Likely
    and Windy

  • Saturday

    Saturday: Snow. Mostly cloudy, with a high near 14. Windy.

    High: 14 °F

    Snow and
    Windy

  • Saturday Night

    Saturday Night: Snow. Mostly cloudy, with a low around 10. Windy.

    Low: 10 °F

    Snow and
    Windy

Detailed Forecast

Tonight
Snow. Low around 6. Wind chill values as low as -1. West northwest wind 7 to 11 mph becoming south southwest after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 1 to 3 inches possible.
Wednesday
Snow. Temperature falling to around 1 by 4pm. Wind chill values as low as -13. East southeast wind 7 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Wednesday Night
Snow likely, mainly before 8pm. Partly cloudy, with a steady temperature around 2. Wind chill values as low as -20. South wind 8 to 14 mph becoming west after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Thursday
A 20 percent chance of snow. Patchy blowing snow between 9am and 4pm. Mostly sunny and cold, with a high near 6. Wind chill values as low as -23. Breezy, with a west wind 18 to 23 mph, with gusts as high as 34 mph.
Thursday Night
A 30 percent chance of snow after 11pm. Mostly cloudy, with a low around 2. Windy, with a west wind 23 to 25 mph, with gusts as high as 38 mph.
Friday
Snow likely, mainly after 11am. Mostly cloudy, with a high near 13. Breezy. Chance of precipitation is 60%.
Friday Night
Snow likely, mainly after 11pm. Mostly cloudy, with a low around 7. Windy. Chance of precipitation is 60%.
Saturday
Snow. Mostly cloudy, with a high near 14. Windy.
Saturday Night
Snow. Mostly cloudy, with a low around 10. Windy.
Sunday
Snow likely, mainly before 11am. Mostly cloudy, with a high near 12. Windy.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 6. Breezy.
Monday
A chance of snow. Partly sunny, with a high near 13. Windy.
Monday Night
Mostly cloudy, with a low around 8. Windy.
Tuesday
A slight chance of snow showers. Partly sunny, with a high near 18. Windy.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Saint Marys Glacier CO
 39.84°N 105.72°W (Elev. 12260 ft)
Last Update:
2:21 pm MST Dec 2, 2025
Forecast Valid:
8pm MST Dec 2, 2025-6pm MST Dec 9, 2025
 
Forecast Discussion
 
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Additional Resources

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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