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

23°C

74°F

Humidity 19%
Wind Speed NW 13 km/h
Barometer 30.34 in
Dewpoint -1°C (30°F)
Visibility 16 km
Last update 12 Jul 7:55 pm MDT
Extended Forecast for

4 Miles W Saint Marys Glacier CO

  • Tonight

    Tonight: Mostly clear, with a low around 7. East northeast wind around 14 km/h becoming west southwest in the evening. Winds could gust as high as 24 km/h.

    Low: 7 °C

    Mostly Clear

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 14. North northwest wind 11 to 16 km/h becoming east southeast in the afternoon. Winds could gust as high as 34 km/h.

    High: 14 °C

    Sunny then
    Chance
    T-storms

  • Sunday Night

    Sunday 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 7. East southeast wind 16 to 18 km/h becoming west after midnight. Winds could gust as high as 29 km/h. Chance of precipitation is 20%.

    Low: 7 °C

    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Showers likely and possibly a thunderstorm between noon and 3pm, then showers and thunderstorms likely after 3pm. Increasing clouds, with a high near 19. West wind 13 to 16 km/h becoming east northeast in the afternoon. Winds could gust as high as 32 km/h. Chance of precipitation is 70%.

    High: 19 °C

    Mostly Sunny
    then T-storms
    Likely

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 7. South wind 16 to 23 km/h becoming west after midnight. Winds could gust as high as 35 km/h. Chance of precipitation is 30%.

    Low: 7 °C

    Chance
    Showers then
    Mostly Clear

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm after noon. Mostly sunny, with a high near 14. Chance of precipitation is 60%.

    High: 14 °C

    Sunny then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 6.

    Low: 6 °C

    Chance
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers, then showers and possibly a thunderstorm after noon. Partly sunny, with a high near 13.

    High: 13 °C

    Slight Chance
    Showers then
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 6.

    Low: 6 °C

    Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 7. East northeast wind around 14 km/h becoming west southwest in the evening. Winds could gust as high as 24 km/h.
Sunday
A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 14. North northwest wind 11 to 16 km/h becoming east southeast in the afternoon. Winds could gust as high as 34 km/h.
Sunday 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 7. East southeast wind 16 to 18 km/h becoming west after midnight. Winds could gust as high as 29 km/h. Chance of precipitation is 20%.
Monday
Showers likely and possibly a thunderstorm between noon and 3pm, then showers and thunderstorms likely after 3pm. Increasing clouds, with a high near 19. West wind 13 to 16 km/h becoming east northeast in the afternoon. Winds could gust as high as 32 km/h. Chance of precipitation is 70%.
Monday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 7. South wind 16 to 23 km/h becoming west after midnight. Winds could gust as high as 35 km/h. Chance of precipitation is 30%.
Tuesday
Showers likely and possibly a thunderstorm after noon. Mostly sunny, with a high near 14. Chance of precipitation is 60%.
Tuesday Night
A 40 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 6.
Wednesday
A slight chance of showers, then showers and possibly a thunderstorm after noon. Partly sunny, with a high near 13.
Wednesday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 6.
Thursday
A slight chance of showers, then showers and thunderstorms likely after noon. Partly sunny, with a high near 13.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 6.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 13.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 7.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 14.
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 m)
Last Update:
2:08 pm MDT Jul 12, 2025
Forecast Valid:
8pm MDT Jul 12, 2025-6pm MDT Jul 19, 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