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.

Partly Cloudy

31°F

-1°C

Humidity 51%
Wind Speed Calm
Barometer 30.17 in
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Last update 18 Jan 6:55 pm MST
Extended Forecast for

3 Miles W Saint Marys Glacier CO

  • Tonight

    Tonight: Snow likely, mainly after 11pm. Mostly cloudy, with a low around 3. Wind chill values as low as -10. West northwest wind 9 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of 1 to 3 inches possible.

    Low: 3 °F

    Snow Likely

  • M.L.King Day

    M.L.King Day: A 50 percent chance of snow, mainly before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 13. Wind chill values as low as -14. Blustery, with a west northwest wind 11 to 18 mph, with gusts as high as 30 mph. New snow accumulation of around an inch possible.

    High: 13 °F

    Blustery.
    Chance Snow
    then Slight
    Chance Snow

  • Monday Night

    Monday Night: Mostly clear, with a low around 2. Wind chill values as low as -22. Windy, with a west wind 20 to 29 mph, with gusts as high as 44 mph.

    Low: 2 °F

    Mostly Clear
    and Windy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 14. Wind chill values as low as -22. Windy, with a west wind 29 to 33 mph, with gusts as high as 50 mph.

    High: 14 °F

    Mostly Sunny
    and Windy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 5. Windy, with a west wind 22 to 28 mph, with gusts as high as 44 mph.

    Low: 5 °F

    Partly Cloudy
    and Windy

  • Wednesday

    Wednesday: Sunny, with a high near 14. Windy.

    High: 14 °F

    Sunny and
    Windy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 4. Breezy.

    Low: 4 °F

    Partly Cloudy
    and Breezy

  • Thursday

    Thursday: Mostly sunny, with a high near 17. Breezy.

    High: 17 °F

    Mostly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 7. Breezy.

    Low: 7 °F

    Mostly Cloudy
    and Breezy

Detailed Forecast

Tonight
Snow likely, mainly after 11pm. Mostly cloudy, with a low around 3. Wind chill values as low as -10. West northwest wind 9 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of 1 to 3 inches possible.
M.L.King Day
A 50 percent chance of snow, mainly before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 13. Wind chill values as low as -14. Blustery, with a west northwest wind 11 to 18 mph, with gusts as high as 30 mph. New snow accumulation of around an inch possible.
Monday Night
Mostly clear, with a low around 2. Wind chill values as low as -22. Windy, with a west wind 20 to 29 mph, with gusts as high as 44 mph.
Tuesday
Mostly sunny, with a high near 14. Wind chill values as low as -22. Windy, with a west wind 29 to 33 mph, with gusts as high as 50 mph.
Tuesday Night
Partly cloudy, with a low around 5. Windy, with a west wind 22 to 28 mph, with gusts as high as 44 mph.
Wednesday
Sunny, with a high near 14. Windy.
Wednesday Night
Partly cloudy, with a low around 4. Breezy.
Thursday
Mostly sunny, with a high near 17. Breezy.
Thursday Night
Mostly cloudy, with a low around 7. Breezy.
Friday
A chance of snow. Mostly cloudy, with a high near 15. Breezy.
Friday Night
A chance of snow. Mostly cloudy, with a low around 6. Breezy.
Saturday
Snow likely. Mostly cloudy, with a high near 13. Breezy.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 6. Breezy.
Sunday
A chance of snow. Partly sunny, with a high near 13. Blustery.
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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:
2:16 pm MST Jan 18, 2026
Forecast Valid:
7pm MST Jan 18, 2026-6pm MST Jan 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation