Current conditions at

Granby-Grand County Airport (KGNB)

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

Overcast

43°F

6°C

Humidity 36%
Wind Speed SW 12 G 30 mph
Barometer 29.90 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 28 Nov 3:35 pm MST
Extended Forecast for

4 Miles W Saint Marys Glacier CO

Winter Weather Advisory November 28, 05:00pm until November 29, 08:00am
Click here for hazard details and duration
Winter Weather Advisory
  • This Afternoon

    This Afternoon: Snow showers likely, mainly after 5pm.  Patchy blowing snow after 5pm. Mostly cloudy, with a high near 24. Breezy, with a west wind around 23 mph, with gusts as high as 34 mph.  Chance of precipitation is 60%. Total daytime snow accumulation of less than a half inch possible.

    High: 24 °F

    Snow Showers
    Likely and
    Patchy
    Blowing Snow

  • Tonight

    Tonight: Snow showers, mainly before 3am, then snow after 3am. The snow could be heavy at times.  Widespread blowing snow, mainly between 8pm and 5am. Low around 3. Wind chill values as low as -12. Windy, with a west northwest wind 24 to 26 mph, with gusts as high as 40 mph.  Chance of precipitation is 80%. New snow accumulation of 4 to 8 inches possible.

    Low: 3 °F

    Heavy Snow
    and Blowing
    Snow

  • Saturday

    Saturday: A 50 percent chance of snow, mainly before 11am.  Widespread blowing snow, mainly before 8am. Mostly cloudy, then gradually becoming sunny and cold, with a steady temperature around 7. Wind chill values as low as -19. Windy, with a west northwest wind 20 to 25 mph decreasing to 14 to 19 mph in the afternoon. Winds could gust as high as 38 mph.  New snow accumulation of 1 to 2 inches possible.

    High: 7 °F

    Chance Snow
    and Blowing
    Snow

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 4. Wind chill values as low as -11. West wind 9 to 11 mph, with gusts as high as 18 mph.

    Low: 4 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Snow likely, mainly after 11am.  Mostly cloudy, with a high near 11. West southwest wind around 9 mph, with gusts as high as 18 mph.  Chance of precipitation is 70%.

    High: 11 °F

    Snow Likely

  • Sunday Night

    Sunday Night: Snow.  Low around 1. Chance of precipitation is 90%.

    Low: 1 °F

    Snow

  • Monday

    Monday: A 30 percent chance of snow before 11am.  Mostly sunny and cold, with a high near 4. Breezy.

    High: 4 °F

    Chance Snow
    then Mostly
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 2. Breezy.

    Low: 2 °F

    Partly Cloudy
    and Breezy

  • Tuesday

    Tuesday: A chance of snow, mainly after 11am.  Partly sunny, with a high near 13. Breezy.

    High: 13 °F

    Chance Snow
    and Breezy

Detailed Forecast

This Afternoon
Snow showers likely, mainly after 5pm. Patchy blowing snow after 5pm. Mostly cloudy, with a high near 24. Breezy, with a west wind around 23 mph, with gusts as high as 34 mph. Chance of precipitation is 60%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Snow showers, mainly before 3am, then snow after 3am. The snow could be heavy at times. Widespread blowing snow, mainly between 8pm and 5am. Low around 3. Wind chill values as low as -12. Windy, with a west northwest wind 24 to 26 mph, with gusts as high as 40 mph. Chance of precipitation is 80%. New snow accumulation of 4 to 8 inches possible.
Saturday
A 50 percent chance of snow, mainly before 11am. Widespread blowing snow, mainly before 8am. Mostly cloudy, then gradually becoming sunny and cold, with a steady temperature around 7. Wind chill values as low as -19. Windy, with a west northwest wind 20 to 25 mph decreasing to 14 to 19 mph in the afternoon. Winds could gust as high as 38 mph. New snow accumulation of 1 to 2 inches possible.
Saturday Night
Increasing clouds, with a low around 4. Wind chill values as low as -11. West wind 9 to 11 mph, with gusts as high as 18 mph.
Sunday
Snow likely, mainly after 11am. Mostly cloudy, with a high near 11. West southwest wind around 9 mph, with gusts as high as 18 mph. Chance of precipitation is 70%.
Sunday Night
Snow. Low around 1. Chance of precipitation is 90%.
Monday
A 30 percent chance of snow before 11am. Mostly sunny and cold, with a high near 4. Breezy.
Monday Night
Partly cloudy, with a low around 2. Breezy.
Tuesday
A chance of snow, mainly after 11am. Partly sunny, with a high near 13. Breezy.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 4. Breezy.
Wednesday
Snow likely. Mostly cloudy and cold, with a high near 8.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 3. Breezy.
Thursday
A chance of snow. Partly sunny and cold, with a high near 9. Breezy.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Saint Marys Glacier CO
 39.84°N 105.72°W (Elev. 12260 ft)
2:21 pm MST Nov 28, 2025
3pm MST Nov 28, 2025-6pm MST Dec 4, 2025
 
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