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

23°F

-5°C

Humidity 56%
Wind Speed W 9 G 16 mph
Barometer 30.14 in
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill13°F (-11°C)
Last update 4 Dec 12:15 pm MST
Extended Forecast for

3 Miles W 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

  • This Afternoon

    This Afternoon: Areas of blowing snow. Mostly sunny, with a high near 11. Wind chill values as low as -16. Windy, with a west northwest wind 29 to 31 mph, with gusts as high as 47 mph.

    High: 11 °F

    Areas 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

This Afternoon
Areas of blowing snow. Mostly sunny, with a high near 11. Wind chill values as low as -16. Windy, with a west northwest wind 29 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 W Saint Marys Glacier CO
 39.84°N 105.69°W (Elev. 12507 ft)
Last Update:
3:25 am MST Dec 4, 2025
Forecast Valid:
12pm MST Dec 4, 2025-6pm MST Dec 10, 2025
 
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