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

-8°C

18°F

Humidity 73%
Wind Speed N 6 km/h
Barometer 30.60 in
Dewpoint -12°C (10°F)
Visibility 16 km
Last update 12 Jan 10:55 am MST
Extended Forecast for

3 Miles WNW Saint Marys Glacier CO

  • Today

    Today: Sunny, with a high near -5. Blustery, with a west northwest wind 23 to 26 km/h, with gusts as high as 48 km/h.

    High: -5 °C

    Sunny and
    Blustery

  • Tonight

    Tonight: Mostly clear, with a low around -11. Wind chill values as low as -20. Blustery, with a west northwest wind 23 to 29 km/h, with gusts as high as 60 km/h.

    Low: -11 °C

    Mostly Clear
    and Blustery

  • Tuesday

    Tuesday: Increasing clouds, with a high near -6. Wind chill values as low as -19. Windy, with a west wind 34 to 40 km/h, with gusts as high as 70 km/h.

    High: -6 °C

    Increasing
    Clouds and
    Windy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around -11. Wind chill values as low as -20. Breezy, with a west wind 29 to 37 km/h, with gusts as high as 65 km/h.

    Low: -11 °C

    Mostly Cloudy
    and Breezy

  • Wednesday

    Wednesday: Mostly sunny, with a high near -7. Breezy, with a west wind 29 to 32 km/h, with gusts as high as 55 km/h.

    High: -7 °C

    Mostly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around -12. Breezy.

    Low: -12 °C

    Mostly Clear
    and Breezy

  • Thursday

    Thursday: Sunny, with a high near -7. Blustery.

    High: -7 °C

    Sunny and
    Blustery

  • Thursday Night

    Thursday Night: Mostly clear, with a low around -17. Blustery.

    Low: -17 °C

    Mostly Clear
    and Blustery

  • Friday

    Friday: Mostly sunny and cold, with a high near -13. Windy.

    High: -13 °C

    Cold and
    Windy

Detailed Forecast

Today
Sunny, with a high near -5. Blustery, with a west northwest wind 23 to 26 km/h, with gusts as high as 48 km/h.
Tonight
Mostly clear, with a low around -11. Wind chill values as low as -20. Blustery, with a west northwest wind 23 to 29 km/h, with gusts as high as 60 km/h.
Tuesday
Increasing clouds, with a high near -6. Wind chill values as low as -19. Windy, with a west wind 34 to 40 km/h, with gusts as high as 70 km/h.
Tuesday Night
Mostly cloudy, with a low around -11. Wind chill values as low as -20. Breezy, with a west wind 29 to 37 km/h, with gusts as high as 65 km/h.
Wednesday
Mostly sunny, with a high near -7. Breezy, with a west wind 29 to 32 km/h, with gusts as high as 55 km/h.
Wednesday Night
Mostly clear, with a low around -12. Breezy.
Thursday
Sunny, with a high near -7. Blustery.
Thursday Night
Mostly clear, with a low around -17. Blustery.
Friday
Mostly sunny and cold, with a high near -13. Windy.
Friday Night
Mostly cloudy, with a low around -15. Breezy.
Saturday
Mostly sunny, with a high near -10. Windy.
Saturday Night
Mostly clear, with a low around -13. Breezy.
Sunday
Sunny, with a high near -6. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Saint Marys Glacier CO
 39.84°N 105.69°W (Elev. 12507 m)
Last Update:
3:27 am MST Jan 12, 2026
Forecast Valid:
11am MST Jan 12, 2026-6pm MST Jan 18, 2026
 
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