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

24°F

-4°C

Humidity 93%
Wind Speed W 3 mph
Barometer 29.82 in
Dewpoint 23°F (-5°C)
Visibility 0.75 mi
Last update 6 Mar 8:55 am MST
Extended Forecast for

Saint Marys Glacier CO

Winter Storm Warning March 6, 09:18am until March 7, 12:00am
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning March 6, 09:18am until March 7, 12:00am

    NOW until 12:00am Sat

    Winter Storm Warning

  • Today

    High: 16 °F⇓

    Heavy Snow
    and Patchy
    Blowing Snow

  • Tonight

    Tonight: Snow likely, mainly before 11pm. Cloudy during the early evening, then gradual clearing, with a low around 5. Wind chill values as low as -9. Light and variable wind becoming west northwest 5 to 9 mph after midnight. Winds could gust as high as 16 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    Low: 5 °F

    Snow Likely
    then Slight
    Chance Snow

  • Saturday

    Saturday: A 20 percent chance of snow after 11am. Patchy blowing snow after 2pm. Sunny, with a high near 25. Wind chill values as low as -8. Breezy, with a west wind 13 to 20 mph, with gusts as high as 37 mph.

    High: 25 °F

    Slight Chance
    Snow and
    Patchy
    Blowing Snow

  • Saturday Night

    Saturday Night: Patchy blowing snow. Mostly clear, with a low around 16. Wind chill values as low as -3. Windy, with a west wind 22 to 28 mph, with gusts as high as 46 mph.

    Low: 16 °F

    Patchy
    Blowing Snow
    and Windy

  • Sunday

    Sunday: Patchy blowing snow before 2pm. Sunny, with a high near 35. Windy, with a west wind around 26 mph, with gusts as high as 46 mph.

    High: 35 °F

    Patchy
    Blowing Snow
    and Windy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 24. Windy.

    Low: 24 °F

    Mostly Clear
    and Windy

  • Monday

    Monday: Sunny, with a high near 39. Windy.

    High: 39 °F

    Sunny and
    Windy

  • Monday Night

    Monday Night: Mostly clear, with a low around 26. Windy.

    Low: 26 °F

    Mostly Clear
    and Windy

Detailed Forecast

Today
Snow. The snow could be heavy at times. Patchy blowing snow between 11am and 1pm. Temperature falling to around 12 by 5pm. Wind chill values as low as -2. Blustery, with a northeast wind 11 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 5 to 9 inches possible.
Tonight
Snow likely, mainly before 11pm. Cloudy during the early evening, then gradual clearing, with a low around 5. Wind chill values as low as -9. Light and variable wind becoming west northwest 5 to 9 mph after midnight. Winds could gust as high as 16 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Saturday
A 20 percent chance of snow after 11am. Patchy blowing snow after 2pm. Sunny, with a high near 25. Wind chill values as low as -8. Breezy, with a west wind 13 to 20 mph, with gusts as high as 37 mph.
Saturday Night
Patchy blowing snow. Mostly clear, with a low around 16. Wind chill values as low as -3. Windy, with a west wind 22 to 28 mph, with gusts as high as 46 mph.
Sunday
Patchy blowing snow before 2pm. Sunny, with a high near 35. Windy, with a west wind around 26 mph, with gusts as high as 46 mph.
Sunday Night
Mostly clear, with a low around 24. Windy.
Monday
Sunny, with a high near 39. Windy.
Monday Night
Mostly clear, with a low around 26. Windy.
Tuesday
A chance of snow after 11am. Mostly sunny, with a high near 40. Windy.
Tuesday Night
A chance of snow, mainly before 11pm. Partly cloudy, with a low around 23. Windy.
Wednesday
A slight chance of snow. Mostly sunny, with a high near 36. Windy.
Wednesday Night
Mostly clear, with a low around 26. Windy.
Thursday
Sunny, with a high near 39. Very windy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Marys Glacier CO
 39.82°N 105.63°W (Elev. 10735 ft)
Last Update:
1:12 am MST Mar 6, 2026
Forecast Valid:
9am MST Mar 6, 2026-6pm MDT Mar 12, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation