National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Multi-Day Winter Storm Across the Pacific Northwest

A multi-day winter storm will bring heavy snowfall through the weekend and heavy rain through early next week in the Pacific Northwest. The heaviest snow amounts are expected amongst the Cascades however, the heavy rainfall will impact areas along the coastal ranges of western Washington and Oregon. Winter storm warnings, advisories and flood watches are in effect. Read More >

Hazardous Weather Conditions

Current conditions at

Granby-Grand County Airport (KGNB)

Lat: 40.09°NLon: 105.92°WElev: 8207ft.

Mostly Cloudy

26°F

-3°C

Humidity 71%
Wind Speed Calm
Barometer 29.74 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Last update 1 Dec 12:35 pm MST
Extended Forecast for

Saint Marys Glacier CO

  • This
    Afternoon

    This Afternoon: Snow showers likely, mainly after 2pm. Mostly cloudy, with a temperature falling to around 13 by 5pm. Wind chill values as low as -4. Blustery, with a west wind 15 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. Total daytime snow accumulation of around an inch possible.

    Snow Showers
    Likely and
    Blustery

    High: 16 °F⇓

  • Tonight

    Tonight: Snow showers likely before 11pm, then a chance of snow after 11pm. Patchy blowing snow before 7pm, then patchy blowing snow after 8pm. Mostly cloudy, with a low around 7. Wind chill values as low as -13. Windy, with a west wind 17 to 25 mph, with gusts as high as 48 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    Snow Showers
    Likely and
    Patchy
    Blowing Snow

    Low: 7 °F

  • Saturday

    Saturday: Snow likely. Widespread blowing snow. Mostly cloudy and cold, with a steady temperature around 9. Wind chill values as low as -18. Very windy, with a west wind 25 to 30 mph increasing to 32 to 37 mph in the afternoon. Winds could gust as high as 60 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.

    Snow Likely
    and Blowing
    Snow

    High: 9 °F

  • Saturday
    Night

    Saturday Night: Snow. Low around 9. Wind chill values as low as -17. Strong and damaging winds, with a west wind 44 to 49 mph increasing to 50 to 55 mph after midnight. Winds could gust as high as 90 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    Snow and
    Damaging
    Winds

    Low: 9 °F

  • Sunday

    Sunday: Snow likely, mainly before 11am. Mostly cloudy, with a high near 21. Strong and damaging winds, with a west wind 48 to 50 mph, with gusts as high as 85 mph. Chance of precipitation is 70%.

    Snow Likely
    and Damaging
    Winds

    High: 21 °F

  • Sunday
    Night

    Sunday Night: A 40 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 18. Strong and damaging winds.

    Chance Snow
    and Damaging
    Winds

    Low: 18 °F

  • Monday

    Monday: Mostly sunny, with a high near 35. Windy.

    Mostly Sunny
    and Windy

    High: 35 °F

  • Monday
    Night

    Monday Night: Partly cloudy, with a low around 22. Windy.

    Partly Cloudy
    and Windy

    Low: 22 °F

  • Tuesday

    Tuesday: Mostly sunny, with a high near 31. Windy.

    Mostly Sunny
    and Windy

    High: 31 °F

Detailed Forecast

This Afternoon
Snow showers likely, mainly after 2pm. Mostly cloudy, with a temperature falling to around 13 by 5pm. Wind chill values as low as -4. Blustery, with a west wind 15 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. Total daytime snow accumulation of around an inch possible.
Tonight
Snow showers likely before 11pm, then a chance of snow after 11pm. Patchy blowing snow before 7pm, then patchy blowing snow after 8pm. Mostly cloudy, with a low around 7. Wind chill values as low as -13. Windy, with a west wind 17 to 25 mph, with gusts as high as 48 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Saturday
Snow likely. Widespread blowing snow. Mostly cloudy and cold, with a steady temperature around 9. Wind chill values as low as -18. Very windy, with a west wind 25 to 30 mph increasing to 32 to 37 mph in the afternoon. Winds could gust as high as 60 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.
Saturday Night
Snow. Low around 9. Wind chill values as low as -17. Strong and damaging winds, with a west wind 44 to 49 mph increasing to 50 to 55 mph after midnight. Winds could gust as high as 90 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Sunday
Snow likely, mainly before 11am. Mostly cloudy, with a high near 21. Strong and damaging winds, with a west wind 48 to 50 mph, with gusts as high as 85 mph. Chance of precipitation is 70%.
Sunday Night
A 40 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 18. Strong and damaging winds.
Monday
Mostly sunny, with a high near 35. Windy.
Monday Night
Partly cloudy, with a low around 22. Windy.
Tuesday
Mostly sunny, with a high near 31. Windy.
Tuesday Night
Mostly clear, with a low around 23. Breezy.
Wednesday
Sunny, with a high near 36. Breezy.
Wednesday Night
Partly cloudy, with a low around 25. Blustery.
Thursday
Mostly sunny, with a high near 35. Breezy.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Saint Marys Glacier CO
 39.85°N 105.63°W (Elev. 11368 ft)
Last Update:
10:30 am MST Dec 1, 2023
Forecast Valid:
12pm MST Dec 1, 2023-6pm MST Dec 7, 2023
 
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