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.

Overcast

35°F

2°C

Humidity 47%
Wind Speed SW 17 G 24 mph
Barometer 29.83 in
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 23 Jan 2:55 pm MST
Extended Forecast for

3 Miles W Saint Marys Glacier CO

Winter Weather Advisory January 23, 03:09pm until January 24, 05:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory January 23, 03:09pm until January 24, 05:00pm

    NOW until 5:00pm Sat

    Winter Weather Advisory

  • This Afternoon

    High: 16 °F

    Snow

  • Tonight

    Tonight: Snow. Low around -2. Wind chill values as low as -12. West wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

    Low: -2 °F

    Snow

  • Saturday

    Saturday: Snow. High near 3. Wind chill values as low as -19. West wind 6 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    High: 3 °F

    Snow

  • Saturday Night

    Saturday Night: A 30 percent chance of snow. Mostly cloudy, with a low around -13. Wind chill values as low as -36. Breezy, with a west wind 11 to 15 mph, with gusts as high as 28 mph. New snow accumulation of less than a half inch possible.

    Low: -13 °F

    Chance Snow
    and Breezy

  • Sunday

    Sunday: Snow likely, mainly after 11am. Mostly cloudy and cold, with a high near -6. Windy, with a west wind 17 to 22 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 47 mph. Chance of precipitation is 70%.

    High: -6 °F

    Snow Likely
    and Windy

  • Sunday Night

    Sunday Night: A 50 percent chance of snow before 11pm. Partly cloudy, with a low around -10. Windy.

    Low: -10 °F

    Windy. Chance
    Snow then
    Partly Cloudy

  • Monday

    Monday: Sunny and cold, with a high near 8. Windy.

    High: 8 °F

    Cold and
    Windy

  • Monday Night

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

    Low: -2 °F

    Partly Cloudy
    and Windy

Detailed Forecast

This Afternoon
Snow. High near 16. Wind chill values as low as -1. West wind around 14 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. Total daytime snow accumulation of 1 to 3 inches possible.
Tonight
Snow. Low around -2. Wind chill values as low as -12. West wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.
Saturday
Snow. High near 3. Wind chill values as low as -19. West wind 6 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Saturday Night
A 30 percent chance of snow. Mostly cloudy, with a low around -13. Wind chill values as low as -36. Breezy, with a west wind 11 to 15 mph, with gusts as high as 28 mph. New snow accumulation of less than a half inch possible.
Sunday
Snow likely, mainly after 11am. Mostly cloudy and cold, with a high near -6. Windy, with a west wind 17 to 22 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 47 mph. Chance of precipitation is 70%.
Sunday Night
A 50 percent chance of snow before 11pm. Partly cloudy, with a low around -10. Windy.
Monday
Sunny and cold, with a high near 8. Windy.
Monday Night
Partly cloudy, with a low around -2. Windy.
Tuesday
A slight chance of snow after 11am. Partly sunny and cold, with a high near 9. Breezy.
Tuesday Night
Partly cloudy, with a low around -1. Breezy.
Wednesday
Mostly sunny, with a high near 14. Breezy.
Wednesday Night
Mostly cloudy, with a low around 2. Breezy.
Thursday
A chance of snow. Mostly cloudy, with a high near 13. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Saint Marys Glacier CO
 39.84°N 105.69°W (Elev. 12507 ft)
Last Update:
2:11 pm MST Jan 23, 2026
Forecast Valid:
3pm MST Jan 23, 2026-6pm MST Jan 29, 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