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

11°F

-12°C

Humidity 86%
Wind Speed SE 3 mph
Barometer 30.14 in
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Last update 4 Dec 3:55 am MST
Extended Forecast for

3 Miles WSW Saint Marys Glacier CO

Winter Storm Watch December 5, 05:00pm until December 7, 08:00am
Click here for hazard details and duration
Winter Storm Watch

  • Today

    Today: Patchy blowing snow. Mostly sunny, with a high near 16. Wind chill values as low as -15. Windy, with a west northwest wind 20 to 30 mph, with gusts as high as 45 mph.

    High: 16 °F

    Patchy
    Blowing Snow
    and Windy

  • Tonight

    Tonight: A 50 percent chance of snow after 11pm. Areas of blowing snow. Mostly cloudy, with a low around 6. Wind chill values as low as -18. Windy, with a west northwest wind around 31 mph, with gusts as high as 47 mph. New snow accumulation of less than a half inch possible.

    Low: 6 °F

    Chance Snow
    and Areas
    Blowing Snow

  • Friday

    Friday: Snow likely, mainly after 11am. Widespread blowing snow, mainly before 11am. Partly sunny, with a high near 16. Wind chill values as low as -15. Windy, with a west wind 23 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

    High: 16 °F

    Snow Likely
    and Blowing
    Snow

  • Friday Night

    Friday Night: Snow likely, mainly after 11pm. Widespread blowing snow, mainly after 7pm. Mostly cloudy, with a low around 13. Wind chill values as low as -7. Windy, with a west wind 28 to 33 mph, with gusts as high as 50 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.

    Low: 13 °F

    Snow Likely
    and Blowing
    Snow

  • Saturday

    Saturday: Snow. Widespread blowing snow. High near 17. Windy, with a west wind 31 to 34 mph, with gusts as high as 50 mph. Chance of precipitation is 90%.

    High: 17 °F

    Snow and
    Blowing Snow

  • Saturday Night

    Saturday Night: Snow likely. Widespread blowing snow, mainly after 4am. Mostly cloudy, with a low around 9. Windy. Chance of precipitation is 70%.

    Low: 9 °F

    Snow Likely
    and Blowing
    Snow

  • Sunday

    Sunday: A 40 percent chance of snow, mainly before 11am. Widespread blowing snow, mainly before 11am. Partly sunny, with a high near 14. Windy.

    High: 14 °F

    Chance Snow
    and Blowing
    Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 9. Windy.

    Low: 9 °F

    Partly Cloudy
    and Windy

  • Monday

    Monday: A chance of snow, mainly before 11am. Partly sunny, with a high near 21. Windy.

    High: 21 °F

    Chance Snow
    and Windy

Detailed Forecast

Today
Patchy blowing snow. Mostly sunny, with a high near 16. Wind chill values as low as -15. Windy, with a west northwest wind 20 to 30 mph, with gusts as high as 45 mph.
Tonight
A 50 percent chance of snow after 11pm. Areas of blowing snow. Mostly cloudy, with a low around 6. Wind chill values as low as -18. Windy, with a west northwest wind around 31 mph, with gusts as high as 47 mph. New snow accumulation of less than a half inch possible.
Friday
Snow likely, mainly after 11am. Widespread blowing snow, mainly before 11am. Partly sunny, with a high near 16. Wind chill values as low as -15. Windy, with a west wind 23 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.
Friday Night
Snow likely, mainly after 11pm. Widespread blowing snow, mainly after 7pm. Mostly cloudy, with a low around 13. Wind chill values as low as -7. Windy, with a west wind 28 to 33 mph, with gusts as high as 50 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.
Saturday
Snow. Widespread blowing snow. High near 17. Windy, with a west wind 31 to 34 mph, with gusts as high as 50 mph. Chance of precipitation is 90%.
Saturday Night
Snow likely. Widespread blowing snow, mainly after 4am. Mostly cloudy, with a low around 9. Windy. Chance of precipitation is 70%.
Sunday
A 40 percent chance of snow, mainly before 11am. Widespread blowing snow, mainly before 11am. Partly sunny, with a high near 14. Windy.
Sunday Night
Partly cloudy, with a low around 9. Windy.
Monday
A chance of snow, mainly before 11am. Partly sunny, with a high near 21. Windy.
Monday Night
Partly cloudy, with a low around 14. Windy.
Tuesday
A slight chance of snow. Partly sunny, with a high near 26. Windy.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 22. Very windy.
Wednesday
A chance of snow. Partly sunny, with a high near 27. Very windy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Saint Marys Glacier CO
 39.82°N 105.69°W (Elev. 10909 ft)
Last Update:
3:25 am MST Dec 4, 2025
Forecast Valid:
4am MST Dec 4, 2025-6pm MST Dec 10, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation