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

51°F

11°C

Humidity 58%
Wind Speed E 6 mph
Barometer 29.93 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 4 Oct 4:35 pm MDT
Extended Forecast for

3 Miles WNW Saint Marys Glacier CO

  • This Afternoon

    This Afternoon: Snow showers likely. Some thunder is also possible. Mostly cloudy, with a steady temperature around 37. Breezy, with a southwest wind around 24 mph, with gusts as high as 37 mph. Chance of precipitation is 60%. Total daytime snow accumulation of less than a half inch possible.

    High: 37 °F

    Snow Showers
    Likely and
    Breezy

  • Tonight

    Tonight: A 20 percent chance of snow showers before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 25. Windy, with a west wind 22 to 28 mph, with gusts as high as 43 mph.

    Low: 25 °F

    Windy. Slight
    Chance Snow
    Showers then
    Mostly Clear

  • Sunday

    Sunday: A 40 percent chance of snow showers, mainly after 3pm. Increasing clouds, with a high near 35. Breezy, with a west wind 10 to 20 mph becoming southeast in the afternoon. Winds could gust as high as 31 mph. New snow accumulation of less than a half inch possible.

    High: 35 °F

    Mostly Sunny
    and Breezy
    then Chance
    Snow Showers

  • Sunday Night

    Sunday Night: Snow likely. Mostly cloudy, with a low around 25. East southeast wind 7 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.

    Low: 25 °F

    Snow Likely

  • Monday

    Monday: A chance of snow before noon, then a chance of snow showers after noon. Partly sunny, with a high near 36. South wind 7 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

    High: 36 °F

    Chance Snow

  • Monday Night

    Monday Night: A 20 percent chance of snow showers. Mostly cloudy, with a low around 25.

    Low: 25 °F

    Slight Chance
    Snow Showers

  • Tuesday

    Tuesday: A 20 percent chance of snow showers after noon. Mostly sunny, with a high near 38.

    High: 38 °F

    Mostly Sunny
    then Slight
    Chance Snow
    Showers

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 42. Breezy.

    High: 42 °F

    Sunny and
    Breezy

Detailed Forecast

This Afternoon
Snow showers likely. Some thunder is also possible. Mostly cloudy, with a steady temperature around 37. Breezy, with a southwest wind around 24 mph, with gusts as high as 37 mph. Chance of precipitation is 60%. Total daytime snow accumulation of less than a half inch possible.
Tonight
A 20 percent chance of snow showers before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 25. Windy, with a west wind 22 to 28 mph, with gusts as high as 43 mph.
Sunday
A 40 percent chance of snow showers, mainly after 3pm. Increasing clouds, with a high near 35. Breezy, with a west wind 10 to 20 mph becoming southeast in the afternoon. Winds could gust as high as 31 mph. New snow accumulation of less than a half inch possible.
Sunday Night
Snow likely. Mostly cloudy, with a low around 25. East southeast wind 7 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.
Monday
A chance of snow before noon, then a chance of snow showers after noon. Partly sunny, with a high near 36. South wind 7 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Monday Night
A 20 percent chance of snow showers. Mostly cloudy, with a low around 25.
Tuesday
A 20 percent chance of snow showers after noon. Mostly sunny, with a high near 38.
Tuesday Night
Mostly clear, with a low around 27.
Wednesday
Sunny, with a high near 42. Breezy.
Wednesday Night
Mostly clear, with a low around 31.
Thursday
Sunny, with a high near 42. Breezy.
Thursday Night
Partly cloudy, with a low around 30.
Friday
A slight chance of snow showers. Mostly sunny, with a high near 41.
Friday Night
A chance of snow showers. Mostly cloudy, with a low around 31.
Saturday
A chance of rain and snow showers. Partly sunny, with a high near 41. 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:
2:20 pm MDT Oct 4, 2025
Forecast Valid:
4pm MDT Oct 4, 2025-6pm MDT Oct 11, 2025
 
Forecast Discussion
 
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