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

43°F

6°C

Humidity 34%
Wind Speed SW 20 G 33 mph
Barometer 29.93 in
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 28 Nov 1:55 pm MST
Extended Forecast for

3 Miles W Saint Marys Glacier CO

Winter Weather Advisory November 28, 05:00pm until November 29, 08:00am
Click here for hazard details and duration
Winter Weather Advisory

  • This Afternoon

    This Afternoon: A 20 percent chance of snow showers. Partly sunny, with a high near 26. Breezy, with a west wind 22 to 24 mph, with gusts as high as 37 mph.

    High: 26 °F

    Slight Chance
    Snow Showers
    and Breezy

  • Tonight

    Tonight: Snow. The snow could be heavy at times. Patchy blowing snow. Low around 5. Wind chill values as low as -11. Blustery, with a west northwest wind 20 to 24 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.

    Low: 5 °F

    Heavy Snow
    and Patchy
    Blowing Snow

  • Saturday

    Saturday: Snow likely before 11am. Areas of blowing snow before 11am. Cloudy, then gradually becoming mostly sunny and cold, with a temperature falling to around 3 by 5pm. Wind chill values as low as -17. Blustery, with a west wind 18 to 24 mph, with gusts as high as 37 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.

    High: 8 °F⇓

    Snow Likely
    and Areas
    Blowing Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 2. Wind chill values as low as -14. West southwest wind around 10 mph, with gusts as high as 21 mph.

    Low: 2 °F

    Mostly Cloudy

  • Sunday

    Sunday: Snow likely, mainly after 11am. Mostly cloudy, with a high near 12. West southwest wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.

    High: 12 °F

    Snow Likely

  • Sunday Night

    Sunday Night: Snow. Low around 1. Chance of precipitation is 80%.

    Low: 1 °F

    Snow

  • Monday

    Monday: A 20 percent chance of snow before 11am. Partly sunny and cold, with a high near 6. Breezy.

    High: 6 °F

    Breezy.
    Slight Chance
    Snow then
    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 4. Breezy.

    Low: 4 °F

    Mostly Cloudy
    and Breezy

  • Tuesday

    Tuesday: A chance of snow, mainly after 11am. Partly sunny, with a high near 16. Breezy.

    High: 16 °F

    Chance Snow
    and Breezy

Detailed Forecast

This Afternoon
A 20 percent chance of snow showers. Partly sunny, with a high near 26. Breezy, with a west wind 22 to 24 mph, with gusts as high as 37 mph.
Tonight
Snow. The snow could be heavy at times. Patchy blowing snow. Low around 5. Wind chill values as low as -11. Blustery, with a west northwest wind 20 to 24 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.
Saturday
Snow likely before 11am. Areas of blowing snow before 11am. Cloudy, then gradually becoming mostly sunny and cold, with a temperature falling to around 3 by 5pm. Wind chill values as low as -17. Blustery, with a west wind 18 to 24 mph, with gusts as high as 37 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
Saturday Night
Mostly cloudy, with a low around 2. Wind chill values as low as -14. West southwest wind around 10 mph, with gusts as high as 21 mph.
Sunday
Snow likely, mainly after 11am. Mostly cloudy, with a high near 12. West southwest wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.
Sunday Night
Snow. Low around 1. Chance of precipitation is 80%.
Monday
A 20 percent chance of snow before 11am. Partly sunny and cold, with a high near 6. Breezy.
Monday Night
Mostly cloudy, with a low around 4. Breezy.
Tuesday
A chance of snow, mainly after 11am. Partly sunny, with a high near 16. Breezy.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 6.
Wednesday
Snow. Mostly cloudy and cold, with a high near 9.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 2. Breezy.
Thursday
A chance of snow. Partly sunny and cold, with a high near 10. Breezy.
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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:
3:26 am MST Nov 28, 2025
Forecast Valid:
2pm MST Nov 28, 2025-6pm MST Dec 4, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation