Current conditions at

Granby-Grand County Airport (KGNB)

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

Rain

39°F

4°C

Humidity 94%
Wind Speed Calm
Barometer 30.00 in
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 1 Apr 12:55 am MDT
Extended Forecast for

3 Miles W Saint Marys Glacier CO

Winter Weather Advisory April 1, 01:16am until April 1, 09:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory April 1, 01:16am until April 1, 09:00pm

    NOW until 9:00pm Wed

    Winter Weather Advisory

  • Overnight

    Low: 23 °F

    Snow Showers
    Likely

  • Wednesday

    Wednesday: Snow showers. Some thunder is also possible.  High near 30. Blustery, with a west southwest wind 13 to 22 mph, with gusts as high as 36 mph.  Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    High: 30 °F

    Snow Showers
    and Blustery

  • Wednesday Night

    Wednesday Night: Snow showers, mainly before 3am.  Low around 17. Wind chill values as low as zero. Windy, with a west northwest wind 23 to 26 mph, with gusts as high as 44 mph.  Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 17 °F

    Windy. Snow
    Showers then
    Snow Showers
    Likely

  • 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 -1. Windy, with a west southwest wind 24 to 28 mph, with gusts as high as 45 mph.  Little or no snow accumulation expected.

    High: 31 °F

    Chance Snow
    Showers and
    Windy

  • Thursday Night

    Thursday Night: Snow showers.  Low around 5. Windy, with a west wind 21 to 26 mph, with gusts as high as 44 mph.  Chance of precipitation is 90%.

    Low: 5 °F

    Snow Showers
    and Windy

  • Friday

    Friday: Snow showers.  High near 14. Windy.  Chance of precipitation is 80%.

    High: 14 °F

    Snow Showers
    and Windy

  • Friday Night

    Friday Night: A 30 percent chance of snow showers, mainly before midnight.  Mostly cloudy, with a low around 10. Windy.

    Low: 10 °F

    Chance Snow
    Showers and
    Windy

  • Saturday

    Saturday: A slight chance of snow showers before noon.  Mostly sunny, with a high near 24. Breezy.

    High: 24 °F

    Breezy.
    Slight Chance
    Snow Showers
    then Sunny

Detailed Forecast

Overnight
Snow showers likely. Cloudy, with a low around 23. West southwest wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of less than one inch possible.
Wednesday
Snow showers. Some thunder is also possible. High near 30. Blustery, with a west southwest wind 13 to 22 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Wednesday Night
Snow showers, mainly before 3am. Low around 17. Wind chill values as low as zero. Windy, with a west northwest wind 23 to 26 mph, with gusts as high as 44 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 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 -1. Windy, with a west southwest wind 24 to 28 mph, with gusts as high as 45 mph. Little or no snow accumulation expected.
Thursday Night
Snow showers. Low around 5. Windy, with a west wind 21 to 26 mph, with gusts as high as 44 mph. Chance of precipitation is 90%.
Friday
Snow showers. High near 14. Windy. Chance of precipitation is 80%.
Friday Night
A 30 percent chance of snow showers, mainly before midnight. Mostly cloudy, with a low around 10. Windy.
Saturday
A slight chance of snow showers before noon. Mostly sunny, with a high near 24. 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. Blustery.
Monday
A chance of snow showers. Mostly sunny, with a high near 33. Breezy.
Monday Night
A chance of snow showers. Partly cloudy, with a low around 18. Blustery.
Tuesday
A chance of snow showers. Partly sunny, with a high near 33. Breezy.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Saint Marys Glacier CO
 39.84°N 105.69°W (Elev. 12507 ft)
12:47 am MDT Apr 1, 2026
1am MDT Apr 1, 2026-6pm MDT Apr 7, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database