Hazardous Weather Conditions

Current conditions at

Granby-Grand County Airport (KGNB)

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

Overcast

61°F

16°C

Humidity 49%
Wind Speed NW 10 mph
Barometer 30.43 in
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Last update 2 Aug 6:55 pm MDT
Extended Forecast for

Saint Marys Glacier CO

  • Tonight

    Tonight: A chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 10pm.  Mostly cloudy, then gradually becoming clear, with a low around 44. North wind 9 to 13 mph becoming south southwest in the evening. Winds could gust as high as 21 mph.  Chance of precipitation is 30%.

    Low: 44 °F

    Chance
    T-storms then
    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 64. Breezy, with a northwest wind 13 to 16 mph, with gusts as high as 26 mph.

    High: 64 °F

    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 44. Northwest wind 6 to 9 mph becoming southeast in the evening. Winds could gust as high as 20 mph.

    Low: 44 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 69. West southwest wind 7 to 10 mph, with gusts as high as 20 mph.

    High: 69 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 50. Breezy, with a west southwest wind 9 to 17 mph, with gusts as high as 31 mph.

    Low: 50 °F

    Partly Cloudy
    then Mostly
    Clear and
    Breezy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 70. Breezy.

    High: 70 °F

    Mostly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 51. Breezy.

    Low: 51 °F

    Partly Cloudy
    then Partly
    Cloudy and
    Breezy

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 70. Breezy.

    High: 70 °F

    Mostly Sunny
    and Breezy
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 52. Breezy.

    Low: 52 °F

    Mostly Cloudy
    then Partly
    Cloudy and
    Breezy

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 10pm. Mostly cloudy, then gradually becoming clear, with a low around 44. North wind 9 to 13 mph becoming south southwest in the evening. Winds could gust as high as 21 mph. Chance of precipitation is 30%.
Sunday
Sunny, with a high near 64. Breezy, with a northwest wind 13 to 16 mph, with gusts as high as 26 mph.
Sunday Night
Mostly clear, with a low around 44. Northwest wind 6 to 9 mph becoming southeast in the evening. Winds could gust as high as 20 mph.
Monday
Mostly sunny, with a high near 69. West southwest wind 7 to 10 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 50. Breezy, with a west southwest wind 9 to 17 mph, with gusts as high as 31 mph.
Tuesday
Mostly sunny, with a high near 70. Breezy.
Tuesday Night
Partly cloudy, with a low around 51. Breezy.
Wednesday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 70. Breezy.
Wednesday Night
Partly cloudy, with a low around 52. Breezy.
Thursday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 70. Breezy.
Thursday Night
Partly cloudy, with a low around 52. Breezy.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 70. Breezy.
Friday Night
Partly cloudy, with a low around 50.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 67.
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Marys Glacier CO
 39.82°N 105.63°W (Elev. 10735 ft)
2:08 pm MDT Aug 2, 2025
7pm MDT Aug 2, 2025-6pm MDT Aug 9, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database