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.

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.
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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 am MDT Apr 1, 2026
Forecast Valid:
1am MDT Apr 1, 2026-6pm MDT Apr 7, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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