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.

Fair

57°F

14°C

Humidity 26%
Wind Speed Calm
Barometer 30.59 in
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Last update 7 Aug 9:15 am MDT
Extended Forecast for

3 Miles WNW Saint Marys Glacier CO

  • Today

    Today: Areas of smoke. Sunny, with a high near 66. Northwest wind 6 to 14 mph, with gusts as high as 22 mph.

    High: 66 °F

    Areas Smoke

  • Tonight

    Tonight: Areas of smoke. Mostly clear, with a low around 48. Northwest wind 9 to 14 mph becoming south southwest in the evening. Winds could gust as high as 22 mph.

    Low: 48 °F

    Areas Smoke

  • Saturday

    Saturday: Mostly sunny, with a high near 66. Breezy, with a northwest wind 8 to 17 mph, with gusts as high as 28 mph.

    High: 66 °F

    Sunny then
    Mostly Sunny
    and Breezy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 50. West southwest wind 9 to 14 mph, with gusts as high as 22 mph.

    Low: 50 °F

    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 64. West northwest wind 8 to 11 mph, with gusts as high as 18 mph.

    High: 64 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly cloudy, with a low around 49. Chance of precipitation is 20%.

    Low: 49 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Monday

    Monday: Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 62. Chance of precipitation is 60%.

    High: 62 °F

    Partly Sunny
    then Showers
    Likely

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 47.

    Low: 47 °F

    Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms after noon. Partly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
Areas of smoke. Sunny, with a high near 66. Northwest wind 6 to 14 mph, with gusts as high as 22 mph.
Tonight
Areas of smoke. Mostly clear, with a low around 48. Northwest wind 9 to 14 mph becoming south southwest in the evening. Winds could gust as high as 22 mph.
Saturday
Mostly sunny, with a high near 66. Breezy, with a northwest wind 8 to 17 mph, with gusts as high as 28 mph.
Saturday Night
Partly cloudy, with a low around 50. West southwest wind 9 to 14 mph, with gusts as high as 22 mph.
Sunday
A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 64. West northwest wind 8 to 11 mph, with gusts as high as 18 mph.
Sunday Night
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly cloudy, with a low around 49. Chance of precipitation is 20%.
Monday
Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 62. Chance of precipitation is 60%.
Monday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 47.
Tuesday
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 61.
Tuesday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 46.
Wednesday
Showers and thunderstorms likely. Partly sunny, with a high near 59.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 44.
Thursday
Showers and thunderstorms likely. Mostly cloudy, with a high near 56.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Saint Marys Glacier CO
 39.86°N 105.69°W (Elev. 11962 ft)
Last Update:
12:46 am MDT Aug 7, 2026
Forecast Valid:
9am MDT Aug 7, 2026-6pm MDT Aug 13, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation