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

6°F

-14°C

Humidity 79%
Wind Speed Calm
Barometer 29.95 in
Dewpoint 1°F (-17°C)
Visibility 10.00 mi
Last update 19 Jan 7:15 pm MST
Extended Forecast for

3 Miles WNW Saint Marys Glacier CO

Extreme Cold Watch January 20, 06:00pm until January 21, 09:00am
Click here for hazard details and duration
Extreme Cold Watch

  • Tonight

    Tonight: Snow. Low around -20. Wind chill values as low as -39. West wind 8 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 1 to 2 inches possible.

    Low: -20 °F

    Snow

  • M.L.King Day

    M.L.King Day: Snow, mainly before noon. High near -17. Wind chill values as low as -46. Breezy, with a west wind 13 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: -17 °F

    Breezy. Snow
    then Chance
    Snow

  • Monday Night

    Monday Night: Mostly clear, with a temperature falling to near -22 by 8pm, then rising to around -14 during the remainder of the night. Wind chill values as low as -50. Windy, with a west wind 18 to 28 mph, with gusts as high as 41 mph.

    Low: -22 °F⇑

    Mostly Clear
    and Windy

  • Tuesday

    Tuesday: Mostly sunny and cold, with a high near 4. Wind chill values as low as -43. Windy, with a west wind 29 to 31 mph, with gusts as high as 47 mph.

    High: 4 °F

    Cold and
    Windy

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow after 11pm. Partly cloudy, with a low around -8. Windy, with a west wind 28 to 31 mph, with gusts as high as 47 mph.

    Low: -8 °F

    Slight Chance
    Snow and
    Windy

  • Wednesday

    Wednesday: A 40 percent chance of snow. Partly sunny and cold, with a high near -4. Windy.

    High: -4 °F

    Chance Snow
    and Windy

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow. Mostly cloudy, with a low around -11. Breezy.

    Low: -11 °F

    Slight Chance
    Snow and
    Breezy

  • Thursday

    Thursday: Mostly sunny and cold, with a high near 3. Windy.

    High: 3 °F

    Cold and
    Windy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 1. Windy.

    Low: 1 °F

    Partly Cloudy
    and Windy

Detailed Forecast

Tonight
Snow. Low around -20. Wind chill values as low as -39. West wind 8 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 1 to 2 inches possible.
M.L.King Day
Snow, mainly before noon. High near -17. Wind chill values as low as -46. Breezy, with a west wind 13 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Monday Night
Mostly clear, with a temperature falling to near -22 by 8pm, then rising to around -14 during the remainder of the night. Wind chill values as low as -50. Windy, with a west wind 18 to 28 mph, with gusts as high as 41 mph.
Tuesday
Mostly sunny and cold, with a high near 4. Wind chill values as low as -43. Windy, with a west wind 29 to 31 mph, with gusts as high as 47 mph.
Tuesday Night
A 20 percent chance of snow after 11pm. Partly cloudy, with a low around -8. Windy, with a west wind 28 to 31 mph, with gusts as high as 47 mph.
Wednesday
A 40 percent chance of snow. Partly sunny and cold, with a high near -4. Windy.
Wednesday Night
A 20 percent chance of snow. Mostly cloudy, with a low around -11. Breezy.
Thursday
Mostly sunny and cold, with a high near 3. Windy.
Thursday Night
Partly cloudy, with a low around 1. Windy.
Friday
Mostly sunny, with a high near 16. Windy.
Friday Night
A chance of snow. Mostly cloudy, with a low around 1. Breezy.
Saturday
Snow likely. Mostly cloudy and cold, with a high near 6. Breezy.
Saturday Night
A chance of snow. Mostly cloudy, with a low around -6.
Sunday
Snow likely. Mostly cloudy and cold, with a high near 3.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Saint Marys Glacier CO
 39.84°N 105.69°W (Elev. 12507 ft)
Last Update:
7:07 pm MST Jan 19, 2025
Forecast Valid:
7pm MST Jan 19, 2025-6pm MST Jan 26, 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