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 and Breezy

76°F

24°C

Humidity 22%
Wind Speed W 24 G 33 mph
Barometer 30.36 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 15 Jul 11:35 am MDT
Extended Forecast for

3 Miles WNW Saint Marys Glacier CO

  • Today

    Today: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 57. Breezy, with a west northwest wind 13 to 17 mph, with gusts as high as 28 mph.

    High: 57 °F

    Chance
    T-storms and
    Breezy

  • 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 43. West southwest wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.

    Low: 43 °F

    Chance
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers, then showers and thunderstorms likely after noon. Mostly sunny during the morning, then cloudy during the afternoon, with a high near 55. West wind 10 to 14 mph becoming north in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 70%.

    High: 55 °F

    Slight Chance
    Showers 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. North wind 8 to 10 mph becoming south after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 60%.

    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 56. West southwest wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.

    High: 56 °F

    Mostly 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. Chance of precipitation is 30%.

    Low: 44 °F

    Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: Showers and thunderstorms likely after noon. Partly sunny, with a high near 56. Chance of precipitation is 70%.

    High: 56 °F

    Mostly Sunny
    then T-storms
    Likely

  • Friday Night

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

    Low: 43 °F

    Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: Showers and thunderstorms likely after noon. Partly sunny, with a high near 54.

    High: 54 °F

    Mostly Sunny
    then T-storms
    Likely

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 57. Breezy, with a west northwest wind 13 to 17 mph, with gusts as high as 28 mph.
Tonight
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 43. 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, then showers and thunderstorms likely after noon. Mostly sunny during the morning, then cloudy during the afternoon, with a high near 55. West wind 10 to 14 mph becoming north in the afternoon. Winds could gust as high as 24 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. North wind 8 to 10 mph becoming south after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 60%.
Thursday
Showers likely and possibly a thunderstorm between noon and 3pm, then showers and thunderstorms likely after 3pm. Partly sunny, with a high near 56. West southwest wind 8 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. Chance of precipitation is 30%.
Friday
Showers and thunderstorms likely after noon. Partly sunny, with a high near 56. Chance of precipitation is 70%.
Friday Night
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 43.
Saturday
Showers and thunderstorms likely 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. Partly sunny, with a high near 55.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 43. Breezy.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 56. 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:
4:01 am MDT Jul 15, 2025
Forecast Valid:
11am MDT Jul 15, 2025-6pm MDT Jul 21, 2025
 
Forecast Discussion
 
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Additional Resources

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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