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.

Fair

31°F

-1°C

Humidity 62%
Wind Speed SW 12 mph
Barometer 29.69 in
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 8 Jan 12:35 pm MST
Extended Forecast for

3 Miles WNW Saint Marys Glacier CO

Winter Weather Advisory January 8, 12:59pm until January 9, 11:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory January 8, 12:59pm until January 9, 11:00am

    NOW until 11:00am Fri

    Winter Weather Advisory

  • This Afternoon

    High: 16 °F

    Snow

  • Tonight

    Tonight: Snow likely. Cloudy, with a low around -3. Wind chill values as low as -18. Blustery, with a west northwest wind 10 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.

    Low: -3 °F

    Snow Likely
    and Blustery

  • Friday

    Friday: Snow likely. Patchy blowing snow. Mostly cloudy and cold, with a temperature falling to around -4 by 5pm. Wind chill values as low as -28. Blustery, with a west northwest wind 17 to 22 mph, with gusts as high as 37 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.

    High: -1 °F⇓

    Snow Likely
    and Patchy
    Blowing Snow

  • Friday Night

    Friday Night: A 20 percent chance of snow before 11pm. Areas of blowing snow. Mostly cloudy, with a low around -6. Wind chill values as low as -30. Windy, with a west wind 22 to 25 mph, with gusts as high as 44 mph.

    Low: -6 °F

    Slight Chance
    Snow and
    Areas Blowing
    Snow

  • Saturday

    Saturday: A 20 percent chance of snow. Mostly sunny and cold, with a high near 6. Windy, with a west wind 23 to 25 mph, with gusts as high as 44 mph.

    High: 6 °F

    Slight Chance
    Snow and
    Windy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 2. Breezy.

    Low: 2 °F

    Mostly Clear
    and Breezy

  • Sunday

    Sunday: Mostly sunny, with a high near 19. Breezy.

    High: 19 °F

    Sunny and
    Breezy then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 7. Breezy.

    Low: 7 °F

    Partly Cloudy
    and Breezy

Detailed Forecast

This Afternoon
Snow. High near 16. Wind chill values as low as -1. West northwest wind around 10 mph, with gusts as high as 16 mph. Chance of precipitation is 80%. Total daytime snow accumulation of 3 to 5 inches possible.
Tonight
Snow likely. Cloudy, with a low around -3. Wind chill values as low as -18. Blustery, with a west northwest wind 10 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.
Friday
Snow likely. Patchy blowing snow. Mostly cloudy and cold, with a temperature falling to around -4 by 5pm. Wind chill values as low as -28. Blustery, with a west northwest wind 17 to 22 mph, with gusts as high as 37 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.
Friday Night
A 20 percent chance of snow before 11pm. Areas of blowing snow. Mostly cloudy, with a low around -6. Wind chill values as low as -30. Windy, with a west wind 22 to 25 mph, with gusts as high as 44 mph.
Saturday
A 20 percent chance of snow. Mostly sunny and cold, with a high near 6. Windy, with a west wind 23 to 25 mph, with gusts as high as 44 mph.
Saturday Night
Mostly clear, with a low around 2. Breezy.
Sunday
Mostly sunny, with a high near 19. Breezy.
Sunday Night
Partly cloudy, with a low around 7. Breezy.
Monday
Mostly sunny, with a high near 20. Breezy.
Monday Night
Mostly cloudy, with a low around 10. Breezy.
Tuesday
A chance of snow. Partly sunny, with a high near 18. Breezy.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 12. Breezy.
Wednesday
A chance of snow. Mostly cloudy, with a high near 16. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Saint Marys Glacier CO
 39.84°N 105.69°W (Elev. 12507 ft)
Last Update:
3:25 am MST Jan 8, 2026
Forecast Valid:
12pm MST Jan 8, 2026-6pm MST Jan 14, 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