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

68°F

20°C

Humidity 25%
Wind Speed S 5 mph
Barometer 30.40 in
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 11 Aug 11:55 am MDT
Extended Forecast for

Saint Marys Glacier CO

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 56. North wind around 9 mph becoming east northeast. Winds could gust as high as 22 mph.

    High: 56 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 42. East wind 7 to 10 mph becoming south southeast after midnight. Winds could gust as high as 20 mph.

    Low: 42 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 58. South wind 9 to 13 mph becoming east southeast in the morning. Winds could gust as high as 23 mph.

    High: 58 °F

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 47. Breezy, with a southeast wind 10 to 17 mph becoming west after midnight. Winds could gust as high as 26 mph.

    Low: 47 °F

    Partly Cloudy
    then Mostly
    Clear and
    Breezy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 65. Breezy, with a west wind 7 to 17 mph becoming north northwest in the afternoon. Winds could gust as high as 26 mph.

    High: 65 °F

    Sunny and
    Breezy then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 50. Breezy.

    Low: 50 °F

    Partly Cloudy
    then Mostly
    Clear and
    Breezy

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 65. Breezy.

    High: 65 °F

    Mostly Sunny
    and Breezy
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 48. Breezy.

    Low: 48 °F

    Chance
    Showers then
    Partly Cloudy
    and Breezy

  • Friday

    Friday: Showers and thunderstorms likely after noon. Partly sunny, with a high near 62. Breezy.

    High: 62 °F

    Mostly Sunny
    and Breezy
    then T-storms
    Likely

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 56. North wind around 9 mph becoming east northeast. Winds could gust as high as 22 mph.
Tonight
Mostly clear, with a low around 42. East wind 7 to 10 mph becoming south southeast after midnight. Winds could gust as high as 20 mph.
Tuesday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 58. South wind 9 to 13 mph becoming east southeast in the morning. Winds could gust as high as 23 mph.
Tuesday Night
Partly cloudy, with a low around 47. Breezy, with a southeast wind 10 to 17 mph becoming west after midnight. Winds could gust as high as 26 mph.
Wednesday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 65. Breezy, with a west wind 7 to 17 mph becoming north northwest in the afternoon. Winds could gust as high as 26 mph.
Wednesday Night
Partly cloudy, with a low around 50. Breezy.
Thursday
A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 65. Breezy.
Thursday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 48. Breezy.
Friday
Showers and thunderstorms likely after noon. Partly sunny, with a high near 62. Breezy.
Friday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 47. Breezy.
Saturday
Showers and thunderstorms likely. Partly sunny, with a high near 60. Breezy.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 47. Breezy.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 60. Breezy.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Saint Marys Glacier CO
 39.85°N 105.63°W (Elev. 11368 ft)
Last Update:
5:00 am MDT Aug 11, 2025
Forecast Valid:
12pm MDT Aug 11, 2025-6pm MDT Aug 17, 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