National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Granby-Grand County Airport (KGNB)

Lat: 40.09°NLon: 105.92°WElev: 8207ft.

Fair

13°F

-11°C

Humidity 83%
Wind Speed NE 3 mph
Barometer 30.29 in
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Last update 2 Feb 4:15 am MST
Extended Forecast for

3 Miles W Saint Marys Glacier CO

  • Today

    Today: Mostly sunny, with a high near 21. Wind chill values as low as -4. Blustery, with a west northwest wind 21 to 23 mph, with gusts as high as 34 mph.

    High: 21 °F

    Mostly Sunny
    and Blustery

  • Tonight

    Tonight: Partly cloudy, with a low around 5. Wind chill values as low as -16. Blustery, with a west northwest wind around 21 mph, with gusts as high as 33 mph.

    Low: 5 °F

    Partly Cloudy
    and Blustery

  • Tuesday

    Tuesday: A 40 percent chance of snow after 11am. Partly sunny, with a high near 13. Wind chill values as low as -15. Windy, with a west northwest wind 23 to 30 mph, with gusts as high as 47 mph. New snow accumulation of less than one inch possible.

    High: 13 °F

    Chance Snow
    and Windy

  • Tuesday Night

    Tuesday Night: Snow likely. Mostly cloudy, with a low around 3. Wind chill values as low as -13. Breezy, with a west wind 15 to 23 mph, with gusts as high as 39 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

    Low: 3 °F

    Snow Likely
    and Breezy

  • Wednesday

    Wednesday: Sunny, with a high near 17. Breezy, with a west wind around 16 mph, with gusts as high as 29 mph.

    High: 17 °F

    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 8. Breezy.

    Low: 8 °F

    Partly Cloudy
    and Breezy

  • Thursday

    Thursday: Sunny, with a high near 26. Breezy.

    High: 26 °F

    Sunny and
    Breezy then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 12.

    Low: 12 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 29.

    High: 29 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 21. Wind chill values as low as -4. Blustery, with a west northwest wind 21 to 23 mph, with gusts as high as 34 mph.
Tonight
Partly cloudy, with a low around 5. Wind chill values as low as -16. Blustery, with a west northwest wind around 21 mph, with gusts as high as 33 mph.
Tuesday
A 40 percent chance of snow after 11am. Partly sunny, with a high near 13. Wind chill values as low as -15. Windy, with a west northwest wind 23 to 30 mph, with gusts as high as 47 mph. New snow accumulation of less than one inch possible.
Tuesday Night
Snow likely. Mostly cloudy, with a low around 3. Wind chill values as low as -13. Breezy, with a west wind 15 to 23 mph, with gusts as high as 39 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.
Wednesday
Sunny, with a high near 17. Breezy, with a west wind around 16 mph, with gusts as high as 29 mph.
Wednesday Night
Partly cloudy, with a low around 8. Breezy.
Thursday
Sunny, with a high near 26. Breezy.
Thursday Night
Mostly clear, with a low around 12.
Friday
Sunny, with a high near 29.
Friday Night
Partly cloudy, with a low around 13. Blustery.
Saturday
Mostly sunny, with a high near 23. Blustery.
Saturday Night
Partly cloudy, with a low around 11. Blustery.
Sunday
Mostly sunny, with a high near 23. Blustery.
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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:
3:27 am MST Feb 2, 2026
Forecast Valid:
4am MST Feb 2, 2026-6pm MST Feb 8, 2026
 
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