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.

Light Snow

15°F

-9°C

Humidity 78%
Wind Speed Calm
Barometer 30.21 in
Dewpoint 10°F (-12°C)
Visibility 5.00 mi
Last update 4 Dec 9:35 am MST
Extended Forecast for

3 Miles WNW Saint Marys Glacier CO

Winter Storm Watch December 5, 05:00pm until December 7, 08:00am
Click here for hazard details and duration
Winter Storm Watch

  • Today

    Today: Patchy blowing snow. Mostly sunny, with a high near 11. Wind chill values as low as -19. Windy, with a west northwest wind 22 to 31 mph, with gusts as high as 47 mph.

    High: 11 °F

    Patchy
    Blowing Snow
    and Windy

  • Tonight

    Tonight: Snow likely, mainly after 2am. Areas of blowing snow. Mostly cloudy, with a temperature rising to around 7 by 4am. Wind chill values as low as -21. Windy, with a west northwest wind 26 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 4 °F⇑

    Snow Likely
    and Areas
    Blowing Snow

  • Friday

    Friday: Snow likely. Widespread blowing snow, mainly before noon. Mostly cloudy, with a high near 11. Wind chill values as low as -15. Windy, with a west wind 23 to 26 mph, with gusts as high as 40 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.

    High: 11 °F

    Snow Likely
    and Blowing
    Snow

  • Friday Night

    Friday Night: Snow, mainly after 11pm. Widespread blowing snow. Low around 9. Wind chill values as low as -12. Windy, with a west wind 26 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.

    Low: 9 °F

    Snow and
    Blowing Snow

  • Saturday

    Saturday: Snow. Widespread blowing snow. High near 11. Windy, with a west wind 30 to 33 mph, with gusts as high as 50 mph. Chance of precipitation is 100%.

    High: 11 °F

    Snow and
    Blowing Snow

  • Saturday Night

    Saturday Night: Snow. Widespread blowing snow, mainly before 10pm. Low around 5. Windy. Chance of precipitation is 80%.

    Low: 5 °F

    Snow and
    Blowing Snow

  • Sunday

    Sunday: A 50 percent chance of snow. Widespread blowing snow, mainly between 10am and 11am. Partly sunny and cold, with a high near 9. Windy.

    High: 9 °F

    Chance Snow
    and Blowing
    Snow

  • Sunday Night

    Sunday Night: A slight chance of snow after 11pm. Partly cloudy, with a low around 5. Windy.

    Low: 5 °F

    Slight Chance
    Snow and
    Windy

  • Monday

    Monday: A chance of snow. Partly sunny, with a high near 15. Windy.

    High: 15 °F

    Chance Snow
    and Windy

Detailed Forecast

Today
Patchy blowing snow. Mostly sunny, with a high near 11. Wind chill values as low as -19. Windy, with a west northwest wind 22 to 31 mph, with gusts as high as 47 mph.
Tonight
Snow likely, mainly after 2am. Areas of blowing snow. Mostly cloudy, with a temperature rising to around 7 by 4am. Wind chill values as low as -21. Windy, with a west northwest wind 26 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Friday
Snow likely. Widespread blowing snow, mainly before noon. Mostly cloudy, with a high near 11. Wind chill values as low as -15. Windy, with a west wind 23 to 26 mph, with gusts as high as 40 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.
Friday Night
Snow, mainly after 11pm. Widespread blowing snow. Low around 9. Wind chill values as low as -12. Windy, with a west wind 26 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.
Saturday
Snow. Widespread blowing snow. High near 11. Windy, with a west wind 30 to 33 mph, with gusts as high as 50 mph. Chance of precipitation is 100%.
Saturday Night
Snow. Widespread blowing snow, mainly before 10pm. Low around 5. Windy. Chance of precipitation is 80%.
Sunday
A 50 percent chance of snow. Widespread blowing snow, mainly between 10am and 11am. Partly sunny and cold, with a high near 9. Windy.
Sunday Night
A slight chance of snow after 11pm. Partly cloudy, with a low around 5. Windy.
Monday
A chance of snow. Partly sunny, with a high near 15. Windy.
Monday Night
Mostly cloudy, with a low around 11. Windy.
Tuesday
A slight chance of snow. Partly sunny, with a high near 21. Windy.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 16. Windy.
Wednesday
A chance of snow. Mostly cloudy, with a high near 21. Windy.
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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 Dec 4, 2025
Forecast Valid:
9am MST Dec 4, 2025-6pm MST Dec 10, 2025
 
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