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

75°F

24°C

Humidity 19%
Wind Speed W 13 G 18 mph
Barometer 30.28 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 15 Jul 7:35 pm MDT
Extended Forecast for

3 Miles WNW Saint Marys Glacier CO

  • Tonight

    Tonight: 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 southwest wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.

    Low: 44 °F

    Chance
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 3pm, then showers and thunderstorms likely after 3pm. Mostly cloudy, with a high near 55. West wind 11 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.

    High: 55 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 9pm, then showers likely between 9pm and midnight. Mostly cloudy, with a low around 41. Northwest wind 9 to 11 mph becoming southeast in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 70%.

    Low: 41 °F

    Showers
    Likely then
    Partly Cloudy

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm between noon and 3pm, then showers and thunderstorms likely after 3pm. Partly sunny, with a high near 55. West wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.

    High: 55 °F

    Partly Sunny
    then T-storms
    Likely

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 44. South southwest wind 10 to 14 mph becoming west after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 30%.

    Low: 44 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Friday

    Friday: Showers and thunderstorms likely after noon. Partly sunny, with a high near 55. Chance of precipitation is 60%.

    High: 55 °F

    Partly Sunny
    then T-storms
    Likely

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 43.

    Low: 43 °F

    Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: Showers and possibly a thunderstorm after noon. Partly sunny, with a high near 54.

    High: 54 °F

    Mostly Sunny
    then T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 42.

    Low: 42 °F

    Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
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 southwest wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.
Wednesday
A slight chance of showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 3pm, then showers and thunderstorms likely after 3pm. Mostly cloudy, with a high near 55. West wind 11 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.
Wednesday Night
Showers likely and possibly a thunderstorm before 9pm, then showers likely between 9pm and midnight. Mostly cloudy, with a low around 41. Northwest wind 9 to 11 mph becoming southeast in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 70%.
Thursday
Showers likely and possibly a thunderstorm between noon and 3pm, then showers and thunderstorms likely after 3pm. Partly sunny, with a high near 55. West wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.
Thursday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 44. South southwest wind 10 to 14 mph becoming west after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 30%.
Friday
Showers and thunderstorms likely after noon. Partly sunny, with a high near 55. Chance of precipitation is 60%.
Friday Night
A 50 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 43.
Saturday
Showers and possibly a thunderstorm after noon. Partly sunny, with a high near 54.
Saturday Night
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 42.
Sunday
Showers and thunderstorms likely after noon. Partly sunny, with a high near 54.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 42.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 55.
Monday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 44. Breezy.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 58. Breezy.
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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:
2:47 pm MDT Jul 15, 2025
Forecast Valid:
7pm MDT Jul 15, 2025-6pm MDT Jul 22, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation