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.

Partly Cloudy

55°F

13°C

Humidity 60%
Wind Speed SE 3 mph
Barometer 30.32 in
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 16 Jul 1:15 am MDT
Extended Forecast for

4 Miles W Saint Marys Glacier CO

  • Overnight

    Overnight: Partly cloudy, with a low around 45. West southwest wind around 10 mph, with gusts as high as 16 mph.

    Low: 45 °F

    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 10 to 13 mph, with gusts as high as 21 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 around 10 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 northwest wind 8 to 10 mph, with gusts as high as 20 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. West wind 9 to 14 mph, with gusts as high as 21 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: A slight chance of showers, then showers and possibly a thunderstorm after noon. Partly sunny, with a high near 53.

    High: 53 °F

    Slight Chance
    Showers then
    T-storms

  • Saturday Night

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

    Low: 44 °F

    Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 45. West southwest wind around 10 mph, with gusts as high as 16 mph.
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 10 to 13 mph, with gusts as high as 21 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 around 10 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 northwest wind 8 to 10 mph, with gusts as high as 20 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. West wind 9 to 14 mph, with gusts as high as 21 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
A slight chance of showers, then showers and possibly a thunderstorm after noon. Partly sunny, with a high near 53.
Saturday Night
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 44.
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 43. Breezy.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 55. Breezy.
Monday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 45. Breezy.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 57. 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:
2:47 pm MDT Jul 15, 2025
Forecast Valid:
1am MDT Jul 16, 2025-6pm MDT Jul 22, 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