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

49°F

9°C

Humidity 32%
Wind Speed W 13 G 18 mph
Barometer 30.06 in
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 4 Mar 3:15 pm MST
Extended Forecast for

3 Miles W Saint Marys Glacier CO

Winter Storm Watch March 6, 12:00am until March 7, 12:00am
Click here for hazard details and duration
Winter Storm Watch

  • This Afternoon

    This Afternoon: Sunny, with a high near 26. West wind around 11 mph, with gusts as high as 18 mph.

    High: 26 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 14. Wind chill values as low as -2. Breezy, with a west southwest wind 11 to 16 mph, with gusts as high as 25 mph.

    Low: 14 °F

    Mostly Clear
    and Breezy

  • Thursday

    Thursday: A 30 percent chance of snow after 11am. Increasing clouds, with a high near 28. Breezy, with a west southwest wind 13 to 15 mph, with gusts as high as 25 mph. New snow accumulation of less than a half inch possible.

    High: 28 °F

    Chance Snow
    and Breezy

  • Thursday Night

    Thursday Night: Snow, mainly after 8pm. The snow could be heavy at times. Areas of blowing snow after 5am. Low around 8. Wind chill values as low as -4. West wind 11 to 14 mph becoming east southeast after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.

    Low: 8 °F

    Heavy Snow
    and Areas
    Blowing Snow

  • Friday

    Friday: Snow. The snow could be heavy at times. Widespread blowing snow, mainly between 8am and 11am. High near 11. Blustery, with a north northwest wind 17 to 22 mph, with gusts as high as 38 mph. Chance of precipitation is 100%.

    High: 11 °F

    Heavy Snow
    and Blowing
    Snow

  • Friday Night

    Friday Night: Snow, mainly before 11pm. Low around 0. Breezy. Chance of precipitation is 80%.

    Low: 0 °F

    Snow and
    Breezy then
    Chance Snow

  • Saturday

    Saturday: A 20 percent chance of snow. Mostly sunny, with a high near 18. Breezy.

    High: 18 °F

    Slight Chance
    Snow and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 8. Windy.

    Low: 8 °F

    Mostly Clear
    and Windy

  • Sunday

    Sunday: Sunny, with a high near 26. Breezy.

    High: 26 °F

    Sunny and
    Breezy

Detailed Forecast

This Afternoon
Sunny, with a high near 26. West wind around 11 mph, with gusts as high as 18 mph.
Tonight
Mostly clear, with a low around 14. Wind chill values as low as -2. Breezy, with a west southwest wind 11 to 16 mph, with gusts as high as 25 mph.
Thursday
A 30 percent chance of snow after 11am. Increasing clouds, with a high near 28. Breezy, with a west southwest wind 13 to 15 mph, with gusts as high as 25 mph. New snow accumulation of less than a half inch possible.
Thursday Night
Snow, mainly after 8pm. The snow could be heavy at times. Areas of blowing snow after 5am. Low around 8. Wind chill values as low as -4. West wind 11 to 14 mph becoming east southeast after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.
Friday
Snow. The snow could be heavy at times. Widespread blowing snow, mainly between 8am and 11am. High near 11. Blustery, with a north northwest wind 17 to 22 mph, with gusts as high as 38 mph. Chance of precipitation is 100%.
Friday Night
Snow, mainly before 11pm. Low around 0. Breezy. Chance of precipitation is 80%.
Saturday
A 20 percent chance of snow. Mostly sunny, with a high near 18. Breezy.
Saturday Night
Mostly clear, with a low around 8. Windy.
Sunday
Sunny, with a high near 26. Breezy.
Sunday Night
Mostly clear, with a low around 15. Windy.
Monday
Sunny, with a high near 31. Windy.
Monday Night
A slight chance of snow. Partly cloudy, with a low around 17. Windy.
Tuesday
Snow likely. Partly sunny, with a high near 24. 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:
3:01 pm MST Mar 4, 2026
Forecast Valid:
3pm MST Mar 4, 2026-6pm MDT Mar 10, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation