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

21°F

-6°C

Humidity 77%
Wind Speed Calm
Barometer 30.06 in
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Last update 3 Dec 5:35 pm MST
Extended Forecast for

3 Miles WNW Saint Marys Glacier CO

  • This Afternoon

    This Afternoon: A 50 percent chance of snow. Cloudy and cold, with a steady temperature around 3. Wind chill values as low as -14. South southeast wind around 13 mph, with gusts as high as 21 mph. Total daytime snow accumulation of 1 to 2 inches possible.

    High: 3 °F

    Chance Snow

  • Tonight

    Tonight: A 30 percent chance of snow before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around -1. Wind chill values as low as -19. Breezy, with a south wind 9 to 16 mph becoming west after midnight. Winds could gust as high as 26 mph. New snow accumulation of less than a half inch possible.

    Low: -1 °F

    Chance Snow
    then Partly
    Cloudy and
    Breezy

  • Thursday

    Thursday: Patchy blowing snow. Mostly sunny and cold, with a high near 10. Wind chill values as low as -21. Windy, with a west northwest wind 18 to 25 mph, with gusts as high as 41 mph.

    High: 10 °F

    Patchy
    Blowing Snow
    and Windy

  • Thursday Night

    Thursday Night: A 30 percent chance of snow after 11pm. Patchy blowing snow. Partly cloudy, with a low around 3. Wind chill values as low as -21. Windy, with a west wind 23 to 26 mph, with gusts as high as 44 mph. New snow accumulation of less than a half inch possible.

    Low: 3 °F

    Chance Snow
    and Patchy
    Blowing Snow

  • Friday

    Friday: Snow likely, mainly before 11am. Widespread blowing snow, mainly before 11am. Mostly cloudy, with a high near 12. Windy, with a west wind 26 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 60%.

    High: 12 °F

    Snow Likely
    and Blowing
    Snow

  • Friday Night

    Friday Night: Snow likely, mainly after 11pm. Widespread blowing snow, mainly between 1am and 3am. Mostly cloudy, with a low around 7. Windy. Chance of precipitation is 70%.

    Low: 7 °F

    Snow Likely
    and Blowing
    Snow

  • Saturday

    Saturday: Snow. Widespread blowing snow, mainly before 2pm. High near 10. Windy. Chance of precipitation is 90%.

    High: 10 °F

    Snow and
    Blowing Snow

  • Saturday Night

    Saturday Night: Snow likely. Areas of blowing snow. Mostly cloudy, with a low around 5. Breezy.

    Low: 5 °F

    Snow Likely
    and Areas
    Blowing Snow

  • Sunday

    Sunday: A chance of snow. Partly sunny and cold, with a high near 9. Windy.

    High: 9 °F

    Chance Snow
    and Windy

Detailed Forecast

This Afternoon
A 50 percent chance of snow. Cloudy and cold, with a steady temperature around 3. Wind chill values as low as -14. South southeast wind around 13 mph, with gusts as high as 21 mph. Total daytime snow accumulation of 1 to 2 inches possible.
Tonight
A 30 percent chance of snow before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around -1. Wind chill values as low as -19. Breezy, with a south wind 9 to 16 mph becoming west after midnight. Winds could gust as high as 26 mph. New snow accumulation of less than a half inch possible.
Thursday
Patchy blowing snow. Mostly sunny and cold, with a high near 10. Wind chill values as low as -21. Windy, with a west northwest wind 18 to 25 mph, with gusts as high as 41 mph.
Thursday Night
A 30 percent chance of snow after 11pm. Patchy blowing snow. Partly cloudy, with a low around 3. Wind chill values as low as -21. Windy, with a west wind 23 to 26 mph, with gusts as high as 44 mph. New snow accumulation of less than a half inch possible.
Friday
Snow likely, mainly before 11am. Widespread blowing snow, mainly before 11am. Mostly cloudy, with a high near 12. Windy, with a west wind 26 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 60%.
Friday Night
Snow likely, mainly after 11pm. Widespread blowing snow, mainly between 1am and 3am. Mostly cloudy, with a low around 7. Windy. Chance of precipitation is 70%.
Saturday
Snow. Widespread blowing snow, mainly before 2pm. High near 10. Windy. Chance of precipitation is 90%.
Saturday Night
Snow likely. Areas of blowing snow. Mostly cloudy, with a low around 5. Breezy.
Sunday
A chance of snow. Partly sunny and cold, with a high near 9. Windy.
Sunday Night
A slight chance of snow after 11pm. Partly cloudy, with a low around 6. Windy.
Monday
A chance of snow. Partly sunny, with a high near 15. Windy.
Monday Night
Mostly cloudy, with a low around 9. Windy.
Tuesday
A slight chance of snow. Partly sunny, with a high near 24. Windy.
Tuesday Night
A slight chance of snow. Mostly cloudy, with a low around 15. Windy.
Wednesday
A chance of snow. Mostly cloudy, with a high near 25. Windy.
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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:
4:05 pm MST Dec 3, 2025
Forecast Valid:
5pm MST Dec 3, 2025-6pm MST Dec 10, 2025
 
Forecast Discussion
 
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Additional Resources

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