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

67°F

19°C

Humidity 23%
Wind Speed SW 15 G 25 mph
Barometer 30.20 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 14 Oct 3:15 pm MDT
Extended Forecast for

Saint Marys Glacier CO

  • This Afternoon

    This Afternoon: Sunny, with a high near 53. South wind 8 to 10 mph, with gusts as high as 16 mph.

    High: 53 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 37. South southwest wind 7 to 10 mph, with gusts as high as 20 mph.

    Low: 37 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 54. Breezy, with a south wind 10 to 16 mph, with gusts as high as 29 mph.

    High: 54 °F

    Sunny then
    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: A chance of rain showers after midnight, mixing with snow after 3am. Partly cloudy, with a low around 33. South southwest wind 7 to 10 mph becoming west northwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 33 °F

    Partly Cloudy
    then Chance
    Rain/Snow

  • Thursday

    Thursday: Snow showers likely. Some thunder is also possible. Mostly cloudy, with a high near 41. West wind 7 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.

    High: 41 °F

    Snow Showers
    Likely

  • Thursday Night

    Thursday Night: A 30 percent chance of snow showers before midnight. Partly cloudy, with a low around 26.

    Low: 26 °F

    Chance Snow
    Showers then
    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 38. Breezy.

    High: 38 °F

    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 28. Breezy.

    Low: 28 °F

    Mostly Clear
    and Breezy

  • Saturday

    Saturday: A slight chance of snow showers before noon. Mostly sunny, with a high near 39. Breezy.

    High: 39 °F

    Breezy.
    Slight Chance
    Snow Showers
    then Mostly
    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 53. South wind 8 to 10 mph, with gusts as high as 16 mph.
Tonight
Mostly clear, with a low around 37. South southwest wind 7 to 10 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 54. Breezy, with a south wind 10 to 16 mph, with gusts as high as 29 mph.
Wednesday Night
A chance of rain showers after midnight, mixing with snow after 3am. Partly cloudy, with a low around 33. South southwest wind 7 to 10 mph becoming west northwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Thursday
Snow showers likely. Some thunder is also possible. Mostly cloudy, with a high near 41. West wind 7 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Thursday Night
A 30 percent chance of snow showers before midnight. Partly cloudy, with a low around 26.
Friday
Sunny, with a high near 38. Breezy.
Friday Night
Mostly clear, with a low around 28. Breezy.
Saturday
A slight chance of snow showers before noon. Mostly sunny, with a high near 39. Breezy.
Saturday Night
Mostly clear, with a low around 30. Breezy.
Sunday
Sunny, with a high near 50. Breezy.
Sunday Night
Mostly clear, with a low around 35. Breezy.
Monday
A slight chance of snow showers. Mostly sunny, with a high near 48. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Saint Marys Glacier CO
 39.82°N 105.63°W (Elev. 10735 ft)
Last Update:
1:26 pm MDT Oct 14, 2025
Forecast Valid:
3pm MDT Oct 14, 2025-6pm MDT Oct 20, 2025
 
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Additional Resources

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Chance of Precipitation