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

57°F

14°C

Humidity 66%
Wind Speed N 8 mph
Barometer 30.48 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 14 Jul 1:35 am MDT
Extended Forecast for

3 Miles WNW Saint Marys Glacier CO

  • Overnight

    Overnight: Partly cloudy, with a steady temperature around 45. West southwest wind around 9 mph, with gusts as high as 15 mph.

    Low: 45 °F

    Partly Cloudy

  • Monday

    Monday: Showers likely and possibly a thunderstorm after noon. Sunny through mid morning, then becoming mostly cloudy, with a high near 59. Northwest wind 8 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 70%.

    High: 59 °F

    Sunny then
    Showers
    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 44. West wind 9 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.

    Low: 44 °F

    Chance
    Showers then
    Mostly Clear

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 59. Breezy, with a northwest wind 13 to 15 mph, with gusts as high as 26 mph.

    High: 59 °F

    Breezy. Sunny
    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. Mostly cloudy, with a low around 43. West northwest wind around 11 mph becoming southwest in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 40%.

    Low: 43 °F

    Chance
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 57. Chance of precipitation is 70%.

    High: 57 °F

    Slight 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 41. Chance of precipitation is 50%.

    Low: 41 °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

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 43.

    Low: 43 °F

    Chance
    T-storms then
    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a steady temperature around 45. West southwest wind around 9 mph, with gusts as high as 15 mph.
Monday
Showers likely and possibly a thunderstorm after noon. Sunny through mid morning, then becoming mostly cloudy, with a high near 59. Northwest wind 8 to 10 mph, with gusts as high as 16 mph. 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 44. West wind 9 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
Tuesday
A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 59. Breezy, with a northwest wind 13 to 15 mph, with gusts as high as 26 mph.
Tuesday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 43. West northwest wind around 11 mph becoming southwest in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 40%.
Wednesday
A slight chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 57. 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 41. Chance of precipitation is 50%.
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 43.
Friday
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 56.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 42.
Saturday
Showers and thunderstorms likely. 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 56.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Saint Marys Glacier CO
 39.84°N 105.69°W (Elev. 12507 ft)
Last Update:
2:21 pm MDT Jul 13, 2025
Forecast Valid:
1am MDT Jul 14, 2025-6pm MDT Jul 20, 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