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.

Mostly Cloudy

27°F

-3°C

Humidity 61%
Wind Speed Calm
Barometer 30.27 in
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Last update 7 Dec 3:15 pm MST
Extended Forecast for

3 Miles WNW Saint Marys Glacier CO

High Wind Watch December 9, 12:00am until December 10, 12:00am
Click here for hazard details and duration
High Wind Watch

  • This Afternoon

    This Afternoon: A 20 percent chance of snow. Patchy blowing snow. Mostly sunny and cold, with a high near 9. Wind chill values as low as -16. Windy, with a west northwest wind around 29 mph, with gusts as high as 40 mph.

    High: 9 °F

    Slight Chance
    Snow and
    Patchy
    Blowing Snow

  • Tonight

    Tonight: A 40 percent chance of snow, mainly after 11pm. Increasing clouds, with a temperature falling to near 6 by 8pm, then rising to around 10 during the remainder of the night. Wind chill values as low as -17. Windy, with a west northwest wind 26 to 28 mph, with gusts as high as 45 mph. New snow accumulation of less than one inch possible.

    Low: 6 °F⇑

    Chance Snow
    and Windy

  • Monday

    Monday: A 30 percent chance of snow before 11am. Partly sunny, with a high near 14. Wind chill values as low as -12. Windy, with a west northwest wind 26 to 31 mph, with gusts as high as 47 mph. New snow accumulation of 1 to 2 inches possible.

    High: 14 °F

    Windy. Chance
    Snow then
    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 10. Wind chill values as low as -13. Very windy, with a west northwest wind 26 to 31 mph increasing to 33 to 38 mph after midnight. Winds could gust as high as 55 mph.

    Low: 10 °F

    Partly Cloudy
    and Very
    Windy

  • Tuesday

    Tuesday: A 20 percent chance of snow after 11am. Partly sunny, with a high near 21. Very windy, with a west wind 40 to 45 mph, with gusts as high as 65 mph.

    High: 21 °F

    Slight Chance
    Snow and Very
    Windy

  • Tuesday Night

    Tuesday Night: A 40 percent chance of snow, mainly after 11pm. Mostly cloudy, with a low around 20. Very windy.

    Low: 20 °F

    Chance Snow
    and Very
    Windy

  • Wednesday

    Wednesday: A 50 percent chance of snow. Mostly cloudy, with a high near 26. Very windy.

    High: 26 °F

    Chance Snow
    and Very
    Windy

  • Wednesday Night

    Wednesday Night: A chance of snow. Mostly cloudy, with a low around 20. Very windy.

    Low: 20 °F

    Chance Snow
    and Very
    Windy

  • Thursday

    Thursday: A chance of snow. Partly sunny, with a high near 23. Windy.

    High: 23 °F

    Chance Snow
    and Windy

Detailed Forecast

This Afternoon
A 20 percent chance of snow. Patchy blowing snow. Mostly sunny and cold, with a high near 9. Wind chill values as low as -16. Windy, with a west northwest wind around 29 mph, with gusts as high as 40 mph.
Tonight
A 40 percent chance of snow, mainly after 11pm. Increasing clouds, with a temperature falling to near 6 by 8pm, then rising to around 10 during the remainder of the night. Wind chill values as low as -17. Windy, with a west northwest wind 26 to 28 mph, with gusts as high as 45 mph. New snow accumulation of less than one inch possible.
Monday
A 30 percent chance of snow before 11am. Partly sunny, with a high near 14. Wind chill values as low as -12. Windy, with a west northwest wind 26 to 31 mph, with gusts as high as 47 mph. New snow accumulation of 1 to 2 inches possible.
Monday Night
Partly cloudy, with a low around 10. Wind chill values as low as -13. Very windy, with a west northwest wind 26 to 31 mph increasing to 33 to 38 mph after midnight. Winds could gust as high as 55 mph.
Tuesday
A 20 percent chance of snow after 11am. Partly sunny, with a high near 21. Very windy, with a west wind 40 to 45 mph, with gusts as high as 65 mph.
Tuesday Night
A 40 percent chance of snow, mainly after 11pm. Mostly cloudy, with a low around 20. Very windy.
Wednesday
A 50 percent chance of snow. Mostly cloudy, with a high near 26. Very windy.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 20. Very windy.
Thursday
A chance of snow. Partly sunny, with a high near 23. Windy.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 18. Windy.
Friday
A chance of snow. Partly sunny, with a high near 22. Breezy.
Friday Night
Mostly cloudy, with a low around 13. Breezy.
Saturday
Mostly sunny, with a high near 23. Breezy.
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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:
1:27 pm MST Dec 7, 2025
Forecast Valid:
3pm MST Dec 7, 2025-6pm MST Dec 13, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation