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

-8°F

-22°C

Humidity 52%
Wind Speed SE 3 mph
Barometer 30.25 in
Dewpoint -21°F (-29°C)
Visibility 10.00 mi
Last update 20 Jan 6:55 pm MST
Extended Forecast for

3 Miles W Saint Marys Glacier CO

Extreme Cold Warning until January 21, 09:00am
Click here for hazard details and duration
Extreme Cold Warning
  •  
    Extreme Cold Warning until January 21, 09:00am

    NOW until 9:00am Tue

    Extreme Cold Warning

  • Tonight

    Low: -22 °F⇑

    Patchy
    Blowing Snow
    and Windy

  • Tuesday

    Tuesday: Widespread blowing snow, mainly before 5pm. Mostly sunny and cold, with a high near 4. Wind chill values as low as -39. Windy, with a west northwest wind 29 to 33 mph, with gusts as high as 50 mph.

    High: 4 °F

    Blowing Snow
    and Windy

  • Tuesday Night

    Tuesday Night: A 30 percent chance of snow after 11pm. Widespread blowing snow, mainly after 8pm. Mostly cloudy, with a low around -8. Wind chill values as low as -33. Very windy, with a west wind 30 to 36 mph, with gusts as high as 55 mph. New snow accumulation of less than a half inch possible.

    Low: -8 °F

    Chance Snow
    and Blowing
    Snow

  • Wednesday

    Wednesday: Snow, mainly after 11am. High near -5. Wind chill values as low as -36. Windy, with a west wind 26 to 30 mph, with gusts as high as 49 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: -5 °F

    Snow and
    Windy

  • Wednesday Night

    Wednesday Night: A 30 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around -11. Windy, with a west wind 22 to 25 mph, with gusts as high as 41 mph.

    Low: -11 °F

    Chance Snow
    and Windy

  • Thursday

    Thursday: A 30 percent chance of snow before 11am. Mostly sunny and cold, with a high near 0. Windy.

    High: 0 °F

    Windy. Chance
    Snow then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -3. Windy.

    Low: -3 °F

    Partly Cloudy
    and Windy

  • Friday

    Friday: A chance of snow after 11am. Mostly sunny, with a high near 14. Windy.

    High: 14 °F

    Chance Snow
    and Windy

Detailed Forecast

Tonight
Patchy blowing snow. Mostly clear, with a temperature rising to around -11 by 5am. Wind chill values as low as -53. Windy, with a west northwest wind 22 to 28 mph, with gusts as high as 41 mph.
Tuesday
Widespread blowing snow, mainly before 5pm. Mostly sunny and cold, with a high near 4. Wind chill values as low as -39. Windy, with a west northwest wind 29 to 33 mph, with gusts as high as 50 mph.
Tuesday Night
A 30 percent chance of snow after 11pm. Widespread blowing snow, mainly after 8pm. Mostly cloudy, with a low around -8. Wind chill values as low as -33. Very windy, with a west wind 30 to 36 mph, with gusts as high as 55 mph. New snow accumulation of less than a half inch possible.
Wednesday
Snow, mainly after 11am. High near -5. Wind chill values as low as -36. Windy, with a west wind 26 to 30 mph, with gusts as high as 49 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Wednesday Night
A 30 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around -11. Windy, with a west wind 22 to 25 mph, with gusts as high as 41 mph.
Thursday
A 30 percent chance of snow before 11am. Mostly sunny and cold, with a high near 0. Windy.
Thursday Night
Partly cloudy, with a low around -3. Windy.
Friday
A chance of snow after 11am. Mostly sunny, with a high near 14. Windy.
Friday Night
Snow likely, mainly after 11pm. Mostly cloudy, with a low around 1. Breezy.
Saturday
Snow. Cloudy and cold, with a high near 3. Blustery.
Saturday Night
Snow. Cloudy, with a low around -4.
Sunday
Snow likely. Mostly cloudy and cold, with a high near 9. Breezy.
Sunday Night
A chance of snow. Mostly cloudy, with a low around -4.
Monday
A chance of snow. Partly sunny and cold, with a high near 9. Blustery.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Saint Marys Glacier CO
 39.84°N 105.69°W (Elev. 12507 ft)
Last Update:
2:42 pm MST Jan 20, 2025
Forecast Valid:
7pm MST Jan 20, 2025-6pm MST Jan 27, 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