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

37°F

3°C

Humidity 81%
Wind Speed Calm
Barometer 30.03 in
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 2 Jan 10:15 am MST
Extended Forecast for

3 Miles WNW Saint Marys Glacier CO

  • Today

    Today: Snow showers likely, mainly before 3pm. Widespread blowing snow, mainly after 5pm. Mostly cloudy, with a high near 19. Wind chill values as low as -4. Windy, with a west northwest wind 29 to 31 mph, with gusts as high as 47 mph. Chance of precipitation is 60%. Total daytime snow accumulation of 1 to 3 inches possible.

    High: 19 °F

    Snow Showers
    Likely and
    Blowing Snow

  • Tonight

    Tonight: A 40 percent chance of snow showers before 11pm. Widespread blowing snow, mainly before 8pm. Mostly cloudy, with a low around 13. Wind chill values as low as -3. Windy, with a west northwest wind 24 to 29 mph decreasing to 18 to 23 mph after midnight. Winds could gust as high as 44 mph. New snow accumulation of less than one inch possible.

    Low: 13 °F

    Chance Snow
    Showers and
    Blowing Snow

  • Saturday

    Saturday: Mostly sunny, with a high near 27. Wind chill values as low as -3. Breezy, with a west wind 14 to 17 mph, with gusts as high as 28 mph.

    High: 27 °F

    Mostly Sunny
    and Breezy
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 17. Wind chill values as low as -1. Windy, with a west wind 16 to 21 mph increasing to 23 to 28 mph after midnight. Winds could gust as high as 46 mph.

    Low: 17 °F

    Mostly Cloudy
    and Windy

  • Sunday

    Sunday: A 20 percent chance of snow before 11am. Mostly sunny, with a high near 23. Windy, with a west wind 23 to 29 mph, with gusts as high as 48 mph.

    High: 23 °F

    Windy. Slight
    Chance Snow
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of snow after 11pm. Mostly cloudy, with a low around 15. Breezy.

    Low: 15 °F

    Slight Chance
    Snow and
    Breezy

  • Monday

    Monday: Snow likely, mainly after 11am. Mostly cloudy, with a high near 19. Windy. Chance of precipitation is 60%.

    High: 19 °F

    Snow Likely
    and Windy

  • Monday Night

    Monday Night: A chance of snow. Mostly cloudy, with a low around 10. Breezy.

    Low: 10 °F

    Chance Snow
    and Breezy

  • Tuesday

    Tuesday: A chance of snow. Partly sunny, with a high near 16. Windy.

    High: 16 °F

    Chance Snow
    and Windy

Detailed Forecast

Today
Snow showers likely, mainly before 3pm. Widespread blowing snow, mainly after 5pm. Mostly cloudy, with a high near 19. Wind chill values as low as -4. Windy, with a west northwest wind 29 to 31 mph, with gusts as high as 47 mph. Chance of precipitation is 60%. Total daytime snow accumulation of 1 to 3 inches possible.
Tonight
A 40 percent chance of snow showers before 11pm. Widespread blowing snow, mainly before 8pm. Mostly cloudy, with a low around 13. Wind chill values as low as -3. Windy, with a west northwest wind 24 to 29 mph decreasing to 18 to 23 mph after midnight. Winds could gust as high as 44 mph. New snow accumulation of less than one inch possible.
Saturday
Mostly sunny, with a high near 27. Wind chill values as low as -3. Breezy, with a west wind 14 to 17 mph, with gusts as high as 28 mph.
Saturday Night
Mostly cloudy, with a low around 17. Wind chill values as low as -1. Windy, with a west wind 16 to 21 mph increasing to 23 to 28 mph after midnight. Winds could gust as high as 46 mph.
Sunday
A 20 percent chance of snow before 11am. Mostly sunny, with a high near 23. Windy, with a west wind 23 to 29 mph, with gusts as high as 48 mph.
Sunday Night
A 20 percent chance of snow after 11pm. Mostly cloudy, with a low around 15. Breezy.
Monday
Snow likely, mainly after 11am. Mostly cloudy, with a high near 19. Windy. Chance of precipitation is 60%.
Monday Night
A chance of snow. Mostly cloudy, with a low around 10. Breezy.
Tuesday
A chance of snow. Partly sunny, with a high near 16. Windy.
Tuesday Night
A slight chance of snow before 11pm. Mostly cloudy, with a low around 8. Breezy.
Wednesday
A chance of snow. Partly sunny, with a high near 16. Breezy.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 3. Breezy.
Thursday
Snow likely. Mostly cloudy and cold, with a high near 10. 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:
3:26 am MST Jan 2, 2026
Forecast Valid:
10am MST Jan 2, 2026-6pm MST Jan 8, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation