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

28°F

-2°C

Humidity 60%
Wind Speed SE 3 mph
Barometer 30.36 in
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Last update 28 Mar 5:35 am MDT
Extended Forecast for

3 Miles W Saint Marys Glacier CO

  • Today

    Today: A 20 percent chance of snow showers after 2pm. Mostly sunny, with a high near 42. Windy, with a west wind 21 to 26 mph, with gusts as high as 40 mph.

    High: 42 °F

    Slight Chance
    Snow Showers
    and Windy

  • Tonight

    Tonight: Mostly clear, with a low around 29. Breezy, with a west wind 21 to 24 mph, with gusts as high as 40 mph.

    Low: 29 °F

    Mostly Clear
    and Breezy

  • Sunday

    Sunday: A 40 percent chance of snow showers after noon. Mostly sunny, with a high near 41. Breezy, with a west wind 18 to 24 mph, with gusts as high as 39 mph. Little or no snow accumulation expected.

    High: 41 °F

    Breezy.
    Mostly Sunny
    then Chance
    Snow Showers

  • Sunday Night

    Sunday Night: A 20 percent chance of snow showers before midnight. Mostly cloudy, with a low around 27. Breezy, with a west southwest wind 18 to 21 mph, with gusts as high as 40 mph.

    Low: 27 °F

    Breezy.
    Slight Chance
    Snow Showers
    then Mostly
    Cloudy

  • Monday

    Monday: A 30 percent chance of snow showers after noon. Mostly sunny, with a high near 40. Very windy, with a west wind 22 to 27 mph increasing to 31 to 36 mph in the afternoon. Winds could gust as high as 55 mph.

    High: 40 °F

    Chance Snow
    Showers and
    Very Windy

  • Monday Night

    Monday Night: Snow showers likely, mainly after midnight. Mostly cloudy, with a low around 22. Windy. Chance of precipitation is 60%.

    Low: 22 °F

    Snow Showers
    Likely and
    Windy

  • Tuesday

    Tuesday: Snow showers. Some thunder is also possible. High near 25. Breezy. Chance of precipitation is 90%.

    High: 25 °F

    Snow Showers
    and Breezy

  • Tuesday Night

    Tuesday Night: Snow showers. Mostly cloudy, with a low around 15. Breezy.

    Low: 15 °F

    Snow Showers
    and Breezy

  • Wednesday

    Wednesday: Snow showers. Cloudy, with a high near 25. Breezy.

    High: 25 °F

    Snow Showers
    and Breezy

Detailed Forecast

Today
A 20 percent chance of snow showers after 2pm. Mostly sunny, with a high near 42. Windy, with a west wind 21 to 26 mph, with gusts as high as 40 mph.
Tonight
Mostly clear, with a low around 29. Breezy, with a west wind 21 to 24 mph, with gusts as high as 40 mph.
Sunday
A 40 percent chance of snow showers after noon. Mostly sunny, with a high near 41. Breezy, with a west wind 18 to 24 mph, with gusts as high as 39 mph. Little or no snow accumulation expected.
Sunday Night
A 20 percent chance of snow showers before midnight. Mostly cloudy, with a low around 27. Breezy, with a west southwest wind 18 to 21 mph, with gusts as high as 40 mph.
Monday
A 30 percent chance of snow showers after noon. Mostly sunny, with a high near 40. Very windy, with a west wind 22 to 27 mph increasing to 31 to 36 mph in the afternoon. Winds could gust as high as 55 mph.
Monday Night
Snow showers likely, mainly after midnight. Mostly cloudy, with a low around 22. Windy. Chance of precipitation is 60%.
Tuesday
Snow showers. Some thunder is also possible. High near 25. Breezy. Chance of precipitation is 90%.
Tuesday Night
Snow showers. Mostly cloudy, with a low around 15. Breezy.
Wednesday
Snow showers. Cloudy, with a high near 25. Breezy.
Wednesday Night
Snow showers likely, mainly before midnight. Mostly cloudy, with a low around 17. Breezy.
Thursday
Snow showers likely. Partly sunny, with a high near 30. Windy.
Thursday Night
Snow showers likely. Mostly cloudy, with a low around 15. Windy.
Friday
Snow showers. The snow could be heavy at times. Mostly cloudy, with a high near 20. Windy.
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Forecast Area
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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:
2:45 am MDT Mar 28, 2026
Forecast Valid:
6am MDT Mar 28, 2026-6pm MDT Apr 3, 2026
 
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