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

39°F

4°C

Humidity 84%
Wind Speed Calm
Barometer 30.37 in
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 15 Jun 5:35 am MDT
Extended Forecast for

2 Miles NW Saint Marys Glacier CO

  • Today

    Today: Sunny, with a high near 59. Breezy, with a west northwest wind 11 to 20 mph, with gusts as high as 31 mph.

    High: 59 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 38. Breezy, with a west northwest wind 13 to 18 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 30 mph.

    Low: 38 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 63. Breezy, with a west northwest wind 14 to 24 mph, with gusts as high as 37 mph.

    High: 63 °F

    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 48. Windy, with a west wind 24 to 34 mph, with gusts as high as 50 mph.

    Low: 48 °F

    Mostly Clear
    and Windy

  • Wednesday

    Wednesday: Sunny, with a high near 65. Very windy, with a west northwest wind 29 to 37 mph, with gusts as high as 55 mph.

    High: 65 °F

    Sunny and
    Very Windy

  • Wednesday Night

    Wednesday Night: Clear, with a low around 37. Windy.

    Low: 37 °F

    Mostly Clear
    and Windy
    then Clear

  • Thursday

    Thursday: Sunny, with a high near 63. Breezy.

    High: 63 °F

    Sunny then
    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 40. Breezy.

    Low: 40 °F

    Clear and
    Breezy then
    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 65. Breezy.

    High: 65 °F

    Sunny and
    Breezy

Detailed Forecast

Today
Sunny, with a high near 59. Breezy, with a west northwest wind 11 to 20 mph, with gusts as high as 31 mph.
Tonight
Mostly clear, with a low around 38. Breezy, with a west northwest wind 13 to 18 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 30 mph.
Tuesday
Sunny, with a high near 63. Breezy, with a west northwest wind 14 to 24 mph, with gusts as high as 37 mph.
Tuesday Night
Mostly clear, with a low around 48. Windy, with a west wind 24 to 34 mph, with gusts as high as 50 mph.
Wednesday
Sunny, with a high near 65. Very windy, with a west northwest wind 29 to 37 mph, with gusts as high as 55 mph.
Wednesday Night
Clear, with a low around 37. Windy.
Thursday
Sunny, with a high near 63. Breezy.
Thursday Night
Mostly clear, with a low around 40. Breezy.
Juneteenth
Sunny, with a high near 65. Breezy.
Friday Night
Partly cloudy, with a low around 45. Breezy.
Saturday
Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 63. Breezy.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 41. Breezy.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 57. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Saint Marys Glacier CO
 39.87°N 105.66°W (Elev. 10620 ft)
Last Update:
3:47 am MDT Jun 15, 2026
Forecast Valid:
5am MDT Jun 15, 2026-6pm MDT Jun 21, 2026
 
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