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

70°F

21°C

Humidity 39%
Wind Speed SE 8 mph
Barometer 30.34 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 14 Jul 7:55 pm MDT
Extended Forecast for

4 Miles W Saint Marys Glacier CO

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 10pm. Partly cloudy, with a low around 45. West southwest wind 9 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    Low: 45 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms after noon. Increasing clouds, with a high near 58. West wind 11 to 14 mph, with gusts as high as 22 mph.

    High: 58 °F

    Sunny then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 44. West northwest wind around 10 mph becoming southwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 30%.

    Low: 44 °F

    Chance
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers, then showers and thunderstorms likely after noon. Partly sunny, with a high near 56. West southwest wind 9 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.

    High: 56 °F

    Slight Chance
    Showers then
    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 42. West northwest wind 9 to 11 mph becoming south in the evening. Winds could gust as high as 21 mph. Chance of precipitation is 50%.

    Low: 42 °F

    Chance
    T-storms then
    Mostly Clear

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 55.

    High: 55 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 44. Breezy.

    Low: 44 °F

    Slight Chance
    T-storms then
    Partly Cloudy
    and Breezy

  • Friday

    Friday: A chance of showers and thunderstorms after noon. Partly sunny, with a high near 55.

    High: 55 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 44.

    Low: 44 °F

    Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 10pm. Partly cloudy, with a low around 45. West southwest wind 9 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Tuesday
A 50 percent chance of showers and thunderstorms after noon. Increasing clouds, with a high near 58. West wind 11 to 14 mph, with gusts as high as 22 mph.
Tuesday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 44. West northwest wind around 10 mph becoming southwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 30%.
Wednesday
A slight chance of showers, then showers and thunderstorms likely after noon. Partly sunny, with a high near 56. West southwest wind 9 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
Wednesday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 42. West northwest wind 9 to 11 mph becoming south in the evening. Winds could gust as high as 21 mph. Chance of precipitation is 50%.
Thursday
A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 55.
Thursday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 44. Breezy.
Friday
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 55.
Friday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 44.
Saturday
Showers and thunderstorms likely after noon. Partly sunny, with a high near 55.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 43.
Sunday
Showers and thunderstorms likely. Partly sunny, with a high near 54.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 44. Breezy.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 54. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Saint Marys Glacier CO
 39.84°N 105.72°W (Elev. 12260 ft)
Last Update:
3:23 pm MDT Jul 14, 2025
Forecast Valid:
8pm MDT Jul 14, 2025-6pm MDT Jul 21, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation