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.

Mostly Cloudy

55°F

13°C

Humidity 17%
Wind Speed W 7 mph
Barometer 30.16 in
Dewpoint 11°F (-12°C)
Visibility 10.00 mi
Wind Chill53°F (12°C)
Last update 6 Apr 6:35 pm MDT
Extended Forecast for

3 Miles W Saint Marys Glacier CO

  • Tonight

    Tonight: Mostly cloudy, with a low around 21. Breezy, with a west wind 8 to 16 mph becoming north in the evening. Winds could gust as high as 23 mph.

    Low: 21 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: A 50 percent chance of snow showers, mainly after noon. Partly sunny, with a high near 34. Breezy, with a west northwest wind 11 to 16 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 32 mph. New snow accumulation of less than a half inch possible.

    High: 34 °F

    Breezy.
    Slight Chance
    Snow Showers
    then Chance
    Snow Showers

  • Tuesday Night

    Tuesday Night: A 30 percent chance of snow showers before midnight. Partly cloudy, with a low around 22. Blustery, with a west wind 18 to 22 mph, with gusts as high as 39 mph. New snow accumulation of less than a half inch possible.

    Low: 22 °F

    Chance Snow
    Showers and
    Blustery

  • Wednesday

    Wednesday: A 40 percent chance of snow showers after noon. Mostly sunny, with a high near 34. Windy, with a west wind 22 to 31 mph, with gusts as high as 48 mph. New snow accumulation of less than a half inch possible.

    High: 34 °F

    Windy. Sunny
    then Chance
    Snow Showers

  • Wednesday Night

    Wednesday Night: A 30 percent chance of snow showers before midnight. Partly cloudy, with a low around 22. Breezy, with a west southwest wind 14 to 24 mph, with gusts as high as 40 mph.

    Low: 22 °F

    Chance Snow
    Showers and
    Breezy then
    Partly Cloudy

  • Thursday

    Thursday: Snow showers, mainly after noon. High near 36. Breezy. Chance of precipitation is 80%.

    High: 36 °F

    Breezy.
    Chance Snow
    Showers then
    Snow Showers

  • Thursday Night

    Thursday Night: Snow showers likely, mainly before midnight. Mostly cloudy, with a low around 22. Breezy. Chance of precipitation is 60%.

    Low: 22 °F

    Snow Showers
    Likely and
    Breezy

  • Friday

    Friday: Snow showers, mainly after noon. Mostly cloudy, with a high near 35. Breezy.

    High: 35 °F

    Snow Showers
    and Breezy

  • Friday Night

    Friday Night: Snow showers likely, mainly before midnight. Mostly cloudy, with a low around 22. Breezy.

    Low: 22 °F

    Snow Showers
    Likely and
    Breezy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 21. Breezy, with a west wind 8 to 16 mph becoming north in the evening. Winds could gust as high as 23 mph.
Tuesday
A 50 percent chance of snow showers, mainly after noon. Partly sunny, with a high near 34. Breezy, with a west northwest wind 11 to 16 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 32 mph. New snow accumulation of less than a half inch possible.
Tuesday Night
A 30 percent chance of snow showers before midnight. Partly cloudy, with a low around 22. Blustery, with a west wind 18 to 22 mph, with gusts as high as 39 mph. New snow accumulation of less than a half inch possible.
Wednesday
A 40 percent chance of snow showers after noon. Mostly sunny, with a high near 34. Windy, with a west wind 22 to 31 mph, with gusts as high as 48 mph. New snow accumulation of less than a half inch possible.
Wednesday Night
A 30 percent chance of snow showers before midnight. Partly cloudy, with a low around 22. Breezy, with a west southwest wind 14 to 24 mph, with gusts as high as 40 mph.
Thursday
Snow showers, mainly after noon. High near 36. Breezy. Chance of precipitation is 80%.
Thursday Night
Snow showers likely, mainly before midnight. Mostly cloudy, with a low around 22. Breezy. Chance of precipitation is 60%.
Friday
Snow showers, mainly after noon. Mostly cloudy, with a high near 35. Breezy.
Friday Night
Snow showers likely, mainly before midnight. Mostly cloudy, with a low around 22. Breezy.
Saturday
Snow showers, mainly after noon. Mostly cloudy, with a high near 36. Breezy.
Saturday Night
Snow showers. Mostly cloudy, with a low around 22. Breezy.
Sunday
Snow showers. Mostly cloudy, with a high near 32. Windy.
Sunday Night
Snow showers likely. Mostly cloudy, with a low around 20. Breezy.
Monday
Snow showers. Mostly cloudy, with a high near 28. 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:
12:47 pm MDT Apr 6, 2026
Forecast Valid:
6pm MDT Apr 6, 2026-6pm MDT Apr 13, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation