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

37°F

3°C

Humidity 74%
Wind Speed Calm
Barometer 30.15 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 11 Apr 1:55 am MDT
Extended Forecast for

3 Miles W Saint Marys Glacier CO

  • Overnight

    Overnight: A 20 percent chance of snow showers. Mostly cloudy, with a low around 26. Breezy, with a west wind around 15 mph, with gusts as high as 28 mph.

    Low: 26 °F

    Slight Chance
    Snow Showers
    and Breezy

  • Saturday

    Saturday: Snow showers likely, mainly after noon. Some thunder is also possible. Partly sunny, with a high near 38. Breezy, with a west southwest wind 14 to 20 mph, with gusts as high as 37 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 38 °F

    Breezy.
    Slight Chance
    Snow Showers
    then Snow
    Showers
    Likely

  • Saturday Night

    Saturday Night: A 40 percent chance of snow showers before midnight. Partly cloudy, with a low around 23. Breezy, with a west wind 21 to 23 mph, with gusts as high as 41 mph. New snow accumulation of less than a half inch possible.

    Low: 23 °F

    Breezy.
    Chance Snow
    Showers then
    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of snow showers after noon. Mostly sunny, with a high near 37. Windy, with a west wind 18 to 28 mph, with gusts as high as 41 mph.

    High: 37 °F

    Sunny and
    Breezy then
    Slight Chance
    Snow Showers
    and Windy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 20. Windy, with a west southwest wind 20 to 28 mph, with gusts as high as 41 mph.

    Low: 20 °F

    Mostly Clear
    and Windy

  • Monday

    Monday: A 30 percent chance of snow showers after noon. Mostly sunny, with a high near 34. Windy.

    High: 34 °F

    Windy. Mostly
    Sunny then
    Chance Snow
    Showers

  • Monday Night

    Monday Night: A 50 percent chance of snow showers. Mostly cloudy, with a low around 17. Windy.

    Low: 17 °F

    Chance Snow
    Showers and
    Windy

  • Tuesday

    Tuesday: Snow showers. Cloudy, with a high near 24. Windy.

    High: 24 °F

    Snow Showers
    and Windy

  • Tuesday Night

    Tuesday Night: Snow showers likely, mainly before midnight. Mostly cloudy, with a low around 16. Windy.

    Low: 16 °F

    Snow Showers
    Likely and
    Windy

Detailed Forecast

Overnight
A 20 percent chance of snow showers. Mostly cloudy, with a low around 26. Breezy, with a west wind around 15 mph, with gusts as high as 28 mph.
Saturday
Snow showers likely, mainly after noon. Some thunder is also possible. Partly sunny, with a high near 38. Breezy, with a west southwest wind 14 to 20 mph, with gusts as high as 37 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Saturday Night
A 40 percent chance of snow showers before midnight. Partly cloudy, with a low around 23. Breezy, with a west wind 21 to 23 mph, with gusts as high as 41 mph. New snow accumulation of less than a half inch possible.
Sunday
A 20 percent chance of snow showers after noon. Mostly sunny, with a high near 37. Windy, with a west wind 18 to 28 mph, with gusts as high as 41 mph.
Sunday Night
Mostly clear, with a low around 20. Windy, with a west southwest wind 20 to 28 mph, with gusts as high as 41 mph.
Monday
A 30 percent chance of snow showers after noon. Mostly sunny, with a high near 34. Windy.
Monday Night
A 50 percent chance of snow showers. Mostly cloudy, with a low around 17. Windy.
Tuesday
Snow showers. Cloudy, with a high near 24. Windy.
Tuesday Night
Snow showers likely, mainly before midnight. Mostly cloudy, with a low around 16. Windy.
Wednesday
A chance of snow showers. Partly sunny, with a high near 29. Windy.
Wednesday Night
Mostly clear, with a low around 18. Windy.
Thursday
A slight chance of snow showers. Mostly sunny, with a high near 34. Windy.
Thursday Night
A chance of snow showers. Mostly cloudy, with a low around 15. Windy.
Friday
Snow showers likely. Mostly cloudy, with a high near 25. Windy.
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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 am MDT Apr 11, 2026
Forecast Valid:
2am MDT Apr 11, 2026-6pm MDT Apr 17, 2026
 
Forecast Discussion
 
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Additional Resources

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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