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

26°F

-3°C

Humidity 71%
Wind Speed E 6 mph
Barometer 30.24 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 9 Dec 3:55 am MST
Extended Forecast for

4 Miles W Saint Marys Glacier CO

High Wind Warning December 9, 04:12am until December 10, 12:00am
Click here for hazard details and duration
High Wind Warning
  •  
    High Wind Warning December 9, 04:12am until December 10, 12:00am

    NOW until 12:00am Wed

    High Wind Warning

  • Overnight

    Low: 14 °F

    Blowing Snow
    and Very
    Windy

  • Tuesday

    Tuesday: A 40 percent chance of snow. Widespread blowing snow, mainly before 10am. Partly sunny, with a high near 28. Wind chill values as low as -7. Very windy, with a west wind 36 to 40 mph, with gusts as high as 70 mph. New snow accumulation of less than a half inch possible.

    High: 28 °F

    Chance Snow
    and Blowing
    Snow

  • Tuesday Night

    Tuesday Night: Snow likely, mainly after 11pm. Widespread blowing snow, mainly between 11pm and 3am. Mostly cloudy, with a low around 22. Very windy, with a west wind 35 to 40 mph decreasing to 28 to 33 mph after midnight. Winds could gust as high as 70 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.

    Low: 22 °F

    Snow Likely
    and Blowing
    Snow

  • Wednesday

    Wednesday: A 40 percent chance of snow. Areas of blowing snow. Mostly cloudy, with a high near 24. Windy, with a west wind 26 to 33 mph, with gusts as high as 49 mph. New snow accumulation of around an inch possible.

    High: 24 °F

    Chance Snow
    and Areas
    Blowing Snow

  • Wednesday Night

    Wednesday Night: Areas of blowing snow. Mostly cloudy, with a low around 18. Windy, with a west wind around 34 mph, with gusts as high as 50 mph.

    Low: 18 °F

    Areas Blowing
    Snow and
    Windy

  • Thursday

    Thursday: Patchy blowing snow before 11am. Mostly sunny, with a high near 23. Windy.

    High: 23 °F

    Windy. Patchy
    Blowing Snow
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 14. Windy.

    Low: 14 °F

    Mostly Clear
    and Windy

  • Friday

    Friday: Mostly sunny, with a high near 24. Breezy.

    High: 24 °F

    Mostly Sunny
    and Breezy

Detailed Forecast

Overnight
Widespread blowing snow. Partly cloudy, with a steady temperature around 14. Wind chill values as low as -9. Very windy, with a west northwest wind around 39 mph, with gusts as high as 65 mph.
Tuesday
A 40 percent chance of snow. Widespread blowing snow, mainly before 10am. Partly sunny, with a high near 28. Wind chill values as low as -7. Very windy, with a west wind 36 to 40 mph, with gusts as high as 70 mph. New snow accumulation of less than a half inch possible.
Tuesday Night
Snow likely, mainly after 11pm. Widespread blowing snow, mainly between 11pm and 3am. Mostly cloudy, with a low around 22. Very windy, with a west wind 35 to 40 mph decreasing to 28 to 33 mph after midnight. Winds could gust as high as 70 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.
Wednesday
A 40 percent chance of snow. Areas of blowing snow. Mostly cloudy, with a high near 24. Windy, with a west wind 26 to 33 mph, with gusts as high as 49 mph. New snow accumulation of around an inch possible.
Wednesday Night
Areas of blowing snow. Mostly cloudy, with a low around 18. Windy, with a west wind around 34 mph, with gusts as high as 50 mph.
Thursday
Patchy blowing snow before 11am. Mostly sunny, with a high near 23. Windy.
Thursday Night
Mostly clear, with a low around 14. Windy.
Friday
Mostly sunny, with a high near 24. Breezy.
Friday Night
Partly cloudy, with a low around 15. Windy.
Saturday
Mostly sunny, with a high near 23. Breezy.
Saturday Night
Partly cloudy, with a low around 15. Breezy.
Sunday
Mostly sunny, with a high near 26. Breezy.
Sunday Night
Partly cloudy, with a low around 13. Breezy.
Monday
Mostly sunny, with a high near 22. Breezy.
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Forecast Area
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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:
3:26 am MST Dec 9, 2025
Forecast Valid:
4am MST Dec 9, 2025-6pm MST Dec 15, 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