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.

Snow

34°F

1°C

Humidity 95%
Wind Speed SW 7 mph
Barometer 29.79 in
Dewpoint 32°F (0°C)
Visibility 1.25 mi
Wind Chill28°F (-2°C)
Last update 1 Apr 7:35 pm MDT
Extended Forecast for

3 Miles W Saint Marys Glacier CO

Winter Weather Advisory April 1, 08:00pm until April 1, 09:00pm
Click here for hazard details and duration
...
  •  
    Winter Weather Advisory April 1, 08:00pm until April 1, 09:00pm

    NOW until 9:00pm Wed

    Winter Weather Advisory

  • Tonight

    Low: 18 °F

    Snow Showers
    and Windy

  • Thursday

    Thursday: A 40 percent chance of snow showers, mainly after noon. Partly sunny, with a high near 31. Wind chill values as low as zero. Windy, with a west southwest wind 25 to 29 mph, with gusts as high as 44 mph. Little or no snow accumulation expected.

    High: 31 °F

    Chance Snow
    Showers and
    Windy

  • Thursday Night

    Thursday Night: Snow showers. Low around 7. Wind chill values as low as -14. Windy, with a west wind 23 to 29 mph, with gusts as high as 44 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

    Low: 7 °F

    Snow Showers
    and Windy

  • Friday

    Friday: Snow showers likely, mainly before noon. Partly sunny, with a high near 13. Wind chill values as low as -16. Windy, with a west wind 25 to 34 mph, with gusts as high as 50 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.

    High: 13 °F

    Snow Showers
    Likely and
    Windy

  • Friday Night

    Friday Night: A 30 percent chance of snow showers before midnight. Mostly cloudy, with a low around 9. Windy, with a west wind 28 to 33 mph decreasing to 18 to 23 mph after midnight. Winds could gust as high as 50 mph.

    Low: 9 °F

    Chance Snow
    Showers and
    Windy then
    Mostly Cloudy
    and Breezy

  • Saturday

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

    High: 26 °F

    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 12. Breezy.

    Low: 12 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Sunday

    Sunday: Sunny, with a high near 32. Breezy.

    High: 32 °F

    Sunny then
    Sunny and
    Breezy

Detailed Forecast

Tonight
Snow showers, mainly before 3am. Low around 18. Wind chill values as low as zero. Windy, with a west northwest wind 26 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 2 to 4 inches possible.
Thursday
A 40 percent chance of snow showers, mainly after noon. Partly sunny, with a high near 31. Wind chill values as low as zero. Windy, with a west southwest wind 25 to 29 mph, with gusts as high as 44 mph. Little or no snow accumulation expected.
Thursday Night
Snow showers. Low around 7. Wind chill values as low as -14. Windy, with a west wind 23 to 29 mph, with gusts as high as 44 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.
Friday
Snow showers likely, mainly before noon. Partly sunny, with a high near 13. Wind chill values as low as -16. Windy, with a west wind 25 to 34 mph, with gusts as high as 50 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.
Friday Night
A 30 percent chance of snow showers before midnight. Mostly cloudy, with a low around 9. Windy, with a west wind 28 to 33 mph decreasing to 18 to 23 mph after midnight. Winds could gust as high as 50 mph.
Saturday
Sunny, with a high near 26. Breezy.
Saturday Night
Mostly clear, with a low around 12. Breezy.
Sunday
Sunny, with a high near 32. Breezy.
Sunday Night
Mostly clear, with a low around 16.
Monday
A chance of snow showers after noon. Mostly sunny, with a high near 32. Breezy.
Monday Night
A chance of snow showers. Partly cloudy, with a low around 18. Blustery.
Tuesday
Snow showers likely. Partly sunny, with a high near 33. Breezy.
Tuesday Night
A chance of snow showers. Mostly cloudy, with a low around 21. Blustery.
Wednesday
Snow showers likely. Partly sunny, with a high near 34. 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:
6:37 pm MDT Apr 1, 2026
Forecast Valid:
8pm MDT Apr 1, 2026-6pm MDT Apr 8, 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