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

55°F

13°C

Humidity 62%
Wind Speed SE 3 mph
Barometer 30.37 in
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Last update 15 Jul 12:55 am MDT
Extended Forecast for

4 Miles W Saint Marys Glacier CO

  • Overnight

    Overnight: Mostly clear, with a steady temperature around 48. Breezy, with a west southwest wind around 16 mph, with gusts as high as 22 mph.

    Low: 48 °F

    Mostly Clear
    and Breezy

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms after noon. Increasing clouds, with a high near 58. Breezy, with a west northwest wind 11 to 15 mph, with gusts as high as 22 mph.

    High: 58 °F

    Sunny and
    Breezy then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 44. West northwest wind around 10 mph becoming southwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 30%.

    Low: 44 °F

    Chance
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers, then showers and thunderstorms likely after noon. Partly sunny, with a high near 56. West southwest wind 9 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.

    High: 56 °F

    Slight Chance
    Showers then
    T-storms
    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 42. West northwest wind 9 to 11 mph becoming south in the evening. Winds could gust as high as 21 mph. Chance of precipitation is 50%.

    Low: 42 °F

    Chance
    T-storms then
    Mostly Clear

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 55.

    High: 55 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 44. Breezy.

    Low: 44 °F

    Slight Chance
    T-storms then
    Partly Cloudy
    and Breezy

  • Friday

    Friday: A chance of showers and thunderstorms after noon. Partly sunny, with a high near 55.

    High: 55 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

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

    Low: 44 °F

    Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a steady temperature around 48. Breezy, with a west southwest wind around 16 mph, with gusts as high as 22 mph.
Tuesday
A 50 percent chance of showers and thunderstorms after noon. Increasing clouds, with a high near 58. Breezy, with a west northwest wind 11 to 15 mph, with gusts as high as 22 mph.
Tuesday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 44. West northwest wind around 10 mph becoming southwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 30%.
Wednesday
A slight chance of showers, then showers and thunderstorms likely after noon. Partly sunny, with a high near 56. West southwest wind 9 to 13 mph, with gusts as high as 25 mph. 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 42. West northwest wind 9 to 11 mph becoming south in the evening. Winds could gust as high as 21 mph. Chance of precipitation is 50%.
Thursday
A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 55.
Thursday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 44. Breezy.
Friday
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 55.
Friday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 44.
Saturday
Showers and thunderstorms likely after noon. Partly sunny, with a high near 55.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 43.
Sunday
Showers and thunderstorms likely. Partly sunny, with a high near 54.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 44. Breezy.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 54. Breezy.
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Forecast Area
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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:
8:41 pm MDT Jul 14, 2025
Forecast Valid:
1am MDT Jul 15, 2025-6pm MDT Jul 21, 2025
 
Forecast Discussion
 
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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