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.

Light Snow

25°F

-4°C

Humidity 90%
Wind Speed SW 12 mph
Barometer 29.97 in
Dewpoint 22°F (-6°C)
Visibility 1.75 mi
Wind Chill14°F (-10°C)
Last update 3 Apr 12:15 am MDT
Extended Forecast for

3 Miles W Saint Marys Glacier CO

  • Overnight

    Overnight: Snow showers. Low around 3. Wind chill values as low as -18. Windy, with a west wind 23 to 32 mph, with gusts as high as 49 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 3 to 5 inches possible.

    Low: 3 °F

    Snow Showers
    and Windy

  • Friday

    Friday: A 50 percent chance of snow showers. Mostly cloudy, with a high near 15. Wind chill values as low as -23. Very windy, with a west northwest wind 32 to 37 mph, with gusts as high as 55 mph. New snow accumulation of less than one inch possible.

    High: 15 °F

    Chance Snow
    Showers and
    Very Windy

  • Friday Night

    Friday Night: A 40 percent chance of snow showers before midnight. Mostly cloudy, with a low around 8. Wind chill values as low as -12. Windy, with a west northwest wind 27 to 32 mph decreasing to 20 to 25 mph after midnight. Winds could gust as high as 48 mph. New snow accumulation of less than one inch possible.

    Low: 8 °F

    Chance Snow
    Showers and
    Windy

  • Saturday

    Saturday: Sunny, with a high near 27. Wind chill values as low as -10. Breezy, with a west northwest wind 18 to 21 mph, with gusts as high as 36 mph.

    High: 27 °F

    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 14. Breezy, with a west southwest wind 10 to 17 mph, with gusts as high as 30 mph.

    Low: 14 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Sunday

    Sunday: Sunny, with a high near 33. Breezy.

    High: 33 °F

    Sunny then
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 17.

    Low: 17 °F

    Mostly Clear

  • Monday

    Monday: A chance of snow showers after noon. Mostly sunny, with a high near 34. Breezy.

    High: 34 °F

    Breezy.
    Mostly Sunny
    then Chance
    Snow Showers

  • Monday Night

    Monday Night: A chance of snow showers, mainly before midnight. Mostly cloudy, with a low around 18. Blustery.

    Low: 18 °F

    Chance Snow
    Showers and
    Blustery

Detailed Forecast

Overnight
Snow showers. Low around 3. Wind chill values as low as -18. Windy, with a west wind 23 to 32 mph, with gusts as high as 49 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 3 to 5 inches possible.
Friday
A 50 percent chance of snow showers. Mostly cloudy, with a high near 15. Wind chill values as low as -23. Very windy, with a west northwest wind 32 to 37 mph, with gusts as high as 55 mph. New snow accumulation of less than one inch possible.
Friday Night
A 40 percent chance of snow showers before midnight. Mostly cloudy, with a low around 8. Wind chill values as low as -12. Windy, with a west northwest wind 27 to 32 mph decreasing to 20 to 25 mph after midnight. Winds could gust as high as 48 mph. New snow accumulation of less than one inch possible.
Saturday
Sunny, with a high near 27. Wind chill values as low as -10. Breezy, with a west northwest wind 18 to 21 mph, with gusts as high as 36 mph.
Saturday Night
Mostly clear, with a low around 14. Breezy, with a west southwest wind 10 to 17 mph, with gusts as high as 30 mph.
Sunday
Sunny, with a high near 33. Breezy.
Sunday Night
Mostly clear, with a low around 17.
Monday
A chance of snow showers after noon. Mostly sunny, with a high near 34. Breezy.
Monday Night
A chance of snow showers, mainly before midnight. Mostly cloudy, with a low around 18. Blustery.
Tuesday
Snow showers likely, mainly after noon. Mostly cloudy, with a high near 33. Windy.
Tuesday Night
A chance of snow showers. Partly cloudy, with a low around 22. Windy.
Wednesday
Snow showers likely. Partly sunny, with a high near 36. Windy.
Wednesday Night
A chance of snow showers. Mostly cloudy, with a low around 21. Windy.
Thursday
Snow showers likely. Mostly cloudy, with a high near 30. 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:
12:46 am MDT Apr 3, 2026
Forecast Valid:
2am MDT Apr 3, 2026-6pm MDT Apr 9, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation