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.

Fair

62°F

17°C

Humidity 14%
Wind Speed W 12 G 26 mph
Barometer 30.18 in
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Last update 28 Mar 6:15 pm MDT
Extended Forecast for

3 Miles W Saint Marys Glacier CO

  • Tonight

    Tonight: A 20 percent chance of snow showers before 8pm. Mostly clear, with a low around 30. Windy, with a west wind 22 to 25 mph, with gusts as high as 40 mph.

    Low: 30 °F

    Windy. Slight
    Chance Snow
    Showers then
    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of snow showers after 1pm. Mostly sunny, with a high near 41. Windy, with a west wind 20 to 25 mph, with gusts as high as 39 mph.

    High: 41 °F

    Slight Chance
    Snow Showers
    and Windy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 28. Breezy, with a west wind 20 to 23 mph, with gusts as high as 39 mph.

    Low: 28 °F

    Mostly Cloudy
    and Breezy

  • Monday

    Monday: A 30 percent chance of snow showers, mainly after 1pm. Partly sunny, with a high near 39. Very windy, with a west wind 23 to 28 mph increasing to 31 to 36 mph in the afternoon. Winds could gust as high as 50 mph. Little or no snow accumulation expected.

    High: 39 °F

    Chance Snow
    Showers and
    Very Windy

  • Monday Night

    Monday Night: A 40 percent chance of snow showers, mainly after 11pm. Mostly cloudy, with a low around 22. Windy, with a west wind 26 to 31 mph decreasing to 13 to 18 mph after midnight. Winds could gust as high as 47 mph.

    Low: 22 °F

    Chance Snow
    Showers and
    Windy

  • Tuesday

    Tuesday: Snow showers. Some thunder is also possible. High near 25. Breezy. Chance of precipitation is 80%.

    High: 25 °F

    Snow Showers
    and Breezy

  • Tuesday Night

    Tuesday Night: Snow showers. Low around 18. Breezy. Chance of precipitation is 90%.

    Low: 18 °F

    Snow Showers
    and Breezy

  • Wednesday

    Wednesday: Snow showers. Some thunder is also possible. Cloudy, with a high near 25. Breezy.

    High: 25 °F

    Snow Showers
    and Breezy

  • Wednesday Night

    Wednesday Night: Snow showers, mainly before midnight. Mostly cloudy, with a low around 18. Breezy.

    Low: 18 °F

    Snow Showers
    and Breezy

Detailed Forecast

Tonight
A 20 percent chance of snow showers before 8pm. Mostly clear, with a low around 30. Windy, with a west wind 22 to 25 mph, with gusts as high as 40 mph.
Sunday
A 20 percent chance of snow showers after 1pm. Mostly sunny, with a high near 41. Windy, with a west wind 20 to 25 mph, with gusts as high as 39 mph.
Sunday Night
Mostly cloudy, with a low around 28. Breezy, with a west wind 20 to 23 mph, with gusts as high as 39 mph.
Monday
A 30 percent chance of snow showers, mainly after 1pm. Partly sunny, with a high near 39. Very windy, with a west wind 23 to 28 mph increasing to 31 to 36 mph in the afternoon. Winds could gust as high as 50 mph. Little or no snow accumulation expected.
Monday Night
A 40 percent chance of snow showers, mainly after 11pm. Mostly cloudy, with a low around 22. Windy, with a west wind 26 to 31 mph decreasing to 13 to 18 mph after midnight. Winds could gust as high as 47 mph.
Tuesday
Snow showers. Some thunder is also possible. High near 25. Breezy. Chance of precipitation is 80%.
Tuesday Night
Snow showers. Low around 18. Breezy. Chance of precipitation is 90%.
Wednesday
Snow showers. Some thunder is also possible. Cloudy, with a high near 25. Breezy.
Wednesday Night
Snow showers, mainly before midnight. Mostly cloudy, with a low around 18. Breezy.
Thursday
A chance of snow showers. Partly sunny, with a high near 31. Windy.
Thursday Night
A chance of snow showers. Mostly cloudy, with a low around 13. Windy.
Friday
Snow showers likely. Mostly cloudy, with a high near 18. Windy.
Friday Night
Snow showers likely. Mostly cloudy, with a low around 8. Windy.
Saturday
A chance of snow showers. Partly sunny, with a high near 18. Windy.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Saint Marys Glacier CO
 39.84°N 105.69°W (Elev. 12507 ft)
Last Update:
12:46 pm MDT Mar 28, 2026
Forecast Valid:
6pm MDT Mar 28, 2026-6pm MDT Apr 4, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation