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

81°F

27°C

Humidity 23%
Wind Speed E 16 mph
Barometer 30.38 in
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 13 Jul 5:35 pm MDT
Extended Forecast for

4 Miles W Saint Marys Glacier CO

  • This Afternoon

    This Afternoon: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 57. East southeast wind around 9 mph, with gusts as high as 15 mph.

    High: 57 °F

    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 1am. Partly cloudy, with a low around 42. East southeast wind around 10 mph becoming west southwest after midnight. Winds could gust as high as 16 mph. Chance of precipitation is 40%.

    Low: 42 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Monday

    Monday: Showers likely and possibly a thunderstorm after noon. Sunny through mid morning, then becoming mostly cloudy, with a high near 58. West wind 7 to 9 mph, with gusts as high as 15 mph. Chance of precipitation is 70%.

    High: 58 °F

    Sunny then
    Showers
    Likely

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 45. Breezy, with a west wind 9 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    Low: 45 °F

    Breezy.
    Slight Chance
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 59. Northwest wind 10 to 14 mph, with gusts as high as 24 mph.

    High: 59 °F

    Sunny then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 44. Chance of precipitation is 40%.

    Low: 44 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 56. Chance of precipitation is 70%.

    High: 56 °F

    Chance
    Showers then
    Showers
    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 43.

    Low: 43 °F

    Chance
    T-storms then
    Partly Cloudy

  • Thursday

    Thursday: Showers and thunderstorms likely after noon. Partly sunny, with a high near 55.

    High: 55 °F

    Mostly Sunny
    then T-storms
    Likely

Detailed Forecast

This Afternoon
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 57. East southeast wind around 9 mph, with gusts as high as 15 mph.
Tonight
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 1am. Partly cloudy, with a low around 42. East southeast wind around 10 mph becoming west southwest after midnight. Winds could gust as high as 16 mph. Chance of precipitation is 40%.
Monday
Showers likely and possibly a thunderstorm after noon. Sunny through mid morning, then becoming mostly cloudy, with a high near 58. West wind 7 to 9 mph, with gusts as high as 15 mph. Chance of precipitation is 70%.
Monday Night
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 45. Breezy, with a west wind 9 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Tuesday
A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 59. Northwest wind 10 to 14 mph, with gusts as high as 24 mph.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 44. Chance of precipitation is 40%.
Wednesday
A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 56. 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 43.
Thursday
Showers and thunderstorms likely after noon. Partly sunny, with a high near 55.
Thursday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 44.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 55.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 43.
Saturday
Showers and thunderstorms likely. Partly sunny, with a high near 56.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 44.
Sunday
Showers and thunderstorms likely. Partly sunny, with a high near 56.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Saint Marys Glacier CO
 39.84°N 105.72°W (Elev. 12260 ft)
Last Update:
2:21 pm MDT Jul 13, 2025
Forecast Valid:
5pm MDT Jul 13, 2025-6pm MDT Jul 20, 2025
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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