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

29°F

-2°C

Humidity 67%
Wind Speed NW 8 mph
Barometer 29.95 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 6 Mar 4:55 pm MST
Extended Forecast for

Saint Marys Glacier CO

Winter Storm Warning March 6, 05:14pm until March 7, 12:00am
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning March 6, 05:14pm until March 7, 12:00am

    NOW until 12:00am Sat

    Winter Storm Warning

  • This Afternoon

    High: 13 °F

    Snow Likely
    and Patchy
    Blowing Snow

  • Tonight

    Tonight: Snow likely, mainly before 8pm. Patchy blowing snow before 7pm. Cloudy during the early evening, then gradual clearing, with a low around 2. Wind chill values as low as -14. Northeast wind 8 to 14 mph becoming west northwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    Low: 2 °F

    Snow Likely
    and Patchy
    Blowing Snow
    then Partly
    Cloudy

  • Saturday

    Saturday: Patchy blowing snow after 11am. Sunny, with a high near 22. Wind chill values as low as -13. Windy, with a west northwest wind 16 to 25 mph, with gusts as high as 38 mph.

    High: 22 °F

    Patchy
    Blowing Snow
    and Windy

  • Saturday Night

    Saturday Night: Patchy blowing snow. Mostly clear, with a low around 13. Wind chill values as low as -7. Windy, with a west wind 29 to 32 mph, with gusts as high as 46 mph.

    Low: 13 °F

    Patchy
    Blowing Snow
    and Windy

  • Sunday

    Sunday: Patchy blowing snow. Sunny, with a high near 29. Windy, with a west wind 24 to 31 mph, with gusts as high as 46 mph.

    High: 29 °F

    Patchy
    Blowing Snow
    and Windy

  • Sunday Night

    Sunday Night: Patchy blowing snow. Mostly clear, with a low around 21. Windy.

    Low: 21 °F

    Patchy
    Blowing Snow
    and Windy

  • Monday

    Monday: Patchy blowing snow before 2pm. Sunny, with a high near 35. Windy.

    High: 35 °F

    Patchy
    Blowing Snow
    and Windy

  • Monday Night

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

    Low: 24 °F

    Mostly Clear
    and Windy

Detailed Forecast

This Afternoon
Snow likely. Patchy blowing snow. Cloudy, with a steady temperature around 13. Wind chill values as low as -4. Blustery, with an east northeast wind around 18 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. Total daytime snow accumulation of 6 to 10 inches possible.
Tonight
Snow likely, mainly before 8pm. Patchy blowing snow before 7pm. Cloudy during the early evening, then gradual clearing, with a low around 2. Wind chill values as low as -14. Northeast wind 8 to 14 mph becoming west northwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Saturday
Patchy blowing snow after 11am. Sunny, with a high near 22. Wind chill values as low as -13. Windy, with a west northwest wind 16 to 25 mph, with gusts as high as 38 mph.
Saturday Night
Patchy blowing snow. Mostly clear, with a low around 13. Wind chill values as low as -7. Windy, with a west wind 29 to 32 mph, with gusts as high as 46 mph.
Sunday
Patchy blowing snow. Sunny, with a high near 29. Windy, with a west wind 24 to 31 mph, with gusts as high as 46 mph.
Sunday Night
Patchy blowing snow. Mostly clear, with a low around 21. Windy.
Monday
Patchy blowing snow before 2pm. Sunny, with a high near 35. Windy.
Monday Night
Mostly clear, with a low around 24. Windy.
Tuesday
A slight chance of snow after 11am. Mostly sunny, with a high near 34. Windy.
Tuesday Night
A chance of snow, mainly before 11pm. Partly cloudy, with a low around 18. Windy.
Wednesday
A slight chance of snow. Mostly sunny, with a high near 29. Very windy.
Wednesday Night
Mostly clear, with a low around 22. Windy.
Thursday
Mostly sunny, with a high near 34. Very windy.
Thursday Night
Mostly clear, with a low around 27. Very windy.
Friday
Mostly sunny, with a high near 36. Strong and damaging winds.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Marys Glacier CO
 39.82°N 105.66°W (Elev. 10981 ft)
Last Update:
11:47 am MST Mar 6, 2026
Forecast Valid:
5pm MST Mar 6, 2026-6pm MDT Mar 13, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation