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.

Partly Cloudy

49°F

9°C

Humidity 65%
Wind Speed NE 3 mph
Barometer 30.39 in
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 15 Jun 12:35 am MDT
Extended Forecast for

3 Miles WNW Saint Marys Glacier CO

  • Overnight

    Overnight: Partly cloudy, with a low around 34. West southwest wind 8 to 10 mph, with gusts as high as 16 mph.

    Low: 34 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 53. Breezy, with a west northwest wind 13 to 23 mph, with gusts as high as 34 mph.

    High: 53 °F

    Sunny and
    Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 34. Breezy, with a west wind 17 to 22 mph decreasing to 8 to 13 mph in the evening. Winds could gust as high as 34 mph.

    Low: 34 °F

    Mostly Clear
    and Breezy
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 54. Windy, with a west northwest wind 15 to 20 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 44 mph.

    High: 54 °F

    Sunny and
    Windy

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 45. Very windy, with a west wind 24 to 29 mph increasing to 31 to 36 mph after midnight. Winds could gust as high as 65 mph.

    Low: 45 °F

    Mostly Clear
    and Very
    Windy

  • Wednesday

    Wednesday: Sunny, with a high near 59. Very windy.

    High: 59 °F

    Sunny and
    Very Windy

  • Wednesday Night

    Wednesday Night: Clear, with a low around 36. Windy.

    Low: 36 °F

    Clear and
    Windy then
    Clear

  • Thursday

    Thursday: Sunny, with a high near 57. Breezy.

    High: 57 °F

    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 38. Breezy.

    Low: 38 °F

    Mostly Clear
    and Breezy

Detailed Forecast

Overnight
Partly cloudy, with a low around 34. West southwest wind 8 to 10 mph, with gusts as high as 16 mph.
Monday
Sunny, with a high near 53. Breezy, with a west northwest wind 13 to 23 mph, with gusts as high as 34 mph.
Monday Night
Partly cloudy, with a low around 34. Breezy, with a west wind 17 to 22 mph decreasing to 8 to 13 mph in the evening. Winds could gust as high as 34 mph.
Tuesday
Sunny, with a high near 54. Windy, with a west northwest wind 15 to 20 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 44 mph.
Tuesday Night
Mostly clear, with a low around 45. Very windy, with a west wind 24 to 29 mph increasing to 31 to 36 mph after midnight. Winds could gust as high as 65 mph.
Wednesday
Sunny, with a high near 59. Very windy.
Wednesday Night
Clear, with a low around 36. Windy.
Thursday
Sunny, with a high near 57. Breezy.
Thursday Night
Mostly clear, with a low around 38. Breezy.
Juneteenth
A slight chance of showers and thunderstorms after noon. Sunny, with a high near 59. Breezy.
Friday Night
Partly cloudy, with a low around 43. Breezy.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 56. Breezy.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 39. Breezy.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 53. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Saint Marys Glacier CO
 39.84°N 105.69°W (Elev. 12507 ft)
Last Update:
12:46 pm MDT Jun 14, 2026
Forecast Valid:
12am MDT Jun 15, 2026-6pm MDT Jun 21, 2026
 
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