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

36°F

2°C

Humidity 52%
Wind Speed W 10 mph
Barometer 30.28 in
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 8 Dec 3:15 pm MST
Extended Forecast for

3 Miles WNW Saint Marys Glacier CO

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

  • This Afternoon

    This Afternoon: A 30 percent chance of snow. Widespread blowing snow. Partly sunny, with a high near 15. Wind chill values as low as -10. Very windy, with a west northwest wind around 38 mph, with gusts as high as 55 mph. Total daytime snow accumulation of around an inch possible.

    High: 15 °F

    Chance Snow
    and Blowing
    Snow

  • Tonight

    Tonight: A 20 percent chance of snow after 11pm. Widespread blowing snow. Mostly cloudy, with a temperature rising to around 15 by 5am. Wind chill values as low as -12. Very windy, with a west northwest wind 34 to 38 mph, with gusts as high as 65 mph.

    Low: 12 °F⇑

    Slight Chance
    Snow and
    Blowing Snow

  • Tuesday

    Tuesday: A 40 percent chance of snow. Widespread blowing snow, mainly before 3pm. Partly sunny, with a high near 28. Wind chill values as low as -7. Very windy, with a west wind 37 to 46 mph, with gusts as high as 80 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 before 2am. Mostly cloudy, with a low around 21. Very windy, with a west wind 36 to 41 mph decreasing to 25 to 30 mph after midnight. Winds could gust as high as 70 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

    Low: 21 °F

    Snow Likely
    and Blowing
    Snow

  • Wednesday

    Wednesday: A 40 percent chance of snow. Widespread blowing snow, mainly after 2pm. Mostly cloudy, with a high near 24. Very windy, with a west wind 26 to 31 mph increasing to 34 to 39 mph in the afternoon. Winds could gust as high as 60 mph.

    High: 24 °F

    Chance Snow
    and Blowing
    Snow

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow before 11pm. Areas of blowing snow. Mostly cloudy, with a low around 20. Very windy.

    Low: 20 °F

    Slight Chance
    Snow and
    Areas Blowing
    Snow

  • Thursday

    Thursday: Patchy blowing snow before 11am. Mostly sunny, with a high near 25. Windy.

    High: 25 °F

    Windy. Patchy
    Blowing Snow
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 15. Windy.

    Low: 15 °F

    Partly Cloudy
    and Windy

  • Friday

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

    High: 24 °F

    Mostly Sunny
    and Breezy

Detailed Forecast

This Afternoon
A 30 percent chance of snow. Widespread blowing snow. Partly sunny, with a high near 15. Wind chill values as low as -10. Very windy, with a west northwest wind around 38 mph, with gusts as high as 55 mph. Total daytime snow accumulation of around an inch possible.
Tonight
A 20 percent chance of snow after 11pm. Widespread blowing snow. Mostly cloudy, with a temperature rising to around 15 by 5am. Wind chill values as low as -12. Very windy, with a west northwest wind 34 to 38 mph, with gusts as high as 65 mph.
Tuesday
A 40 percent chance of snow. Widespread blowing snow, mainly before 3pm. Partly sunny, with a high near 28. Wind chill values as low as -7. Very windy, with a west wind 37 to 46 mph, with gusts as high as 80 mph. New snow accumulation of less than a half inch possible.
Tuesday Night
Snow likely, mainly after 11pm. Widespread blowing snow, mainly before 2am. Mostly cloudy, with a low around 21. Very windy, with a west wind 36 to 41 mph decreasing to 25 to 30 mph after midnight. Winds could gust as high as 70 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.
Wednesday
A 40 percent chance of snow. Widespread blowing snow, mainly after 2pm. Mostly cloudy, with a high near 24. Very windy, with a west wind 26 to 31 mph increasing to 34 to 39 mph in the afternoon. Winds could gust as high as 60 mph.
Wednesday Night
A 20 percent chance of snow before 11pm. Areas of blowing snow. Mostly cloudy, with a low around 20. Very windy.
Thursday
Patchy blowing snow before 11am. Mostly sunny, with a high near 25. Windy.
Thursday Night
Partly cloudy, with a low around 15. Windy.
Friday
Mostly sunny, with a high near 24. Breezy.
Friday Night
Partly cloudy, with a low around 15. Breezy.
Saturday
Mostly sunny, with a high near 25. Breezy.
Saturday Night
Mostly cloudy, with a low around 15. Breezy.
Sunday
Mostly sunny, with a high near 25. 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:
2:11 pm MST Dec 8, 2025
Forecast Valid:
3pm MST Dec 8, 2025-6pm MST Dec 14, 2025
 
Forecast Discussion
 
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