National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Granby-Grand County Airport (KGNB)

Lat: 40.09°NLon: 105.92°WElev: 8207ft.

Overcast

60°F

16°C

Humidity 47%
Wind Speed SE 3 mph
Barometer 30.41 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 10 Aug 2:15 am MDT
Extended Forecast for

Grand Lake CO

  • Overnight

    Overnight: Areas of smoke. Mostly cloudy, with a low around 49. Calm wind.

    Low: 49 °F

    Areas Smoke

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 79. Light and variable wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 16 mph.

    High: 79 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 48. North northeast wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 48 °F

    Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after noon. Increasing clouds, with a high near 78. Calm wind becoming west 5 to 9 mph in the morning. Winds could gust as high as 16 mph.

    High: 78 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 49. North wind around 5 mph becoming calm in the evening.

    Low: 49 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm after noon. High near 76. Chance of precipitation is 80%.

    High: 76 °F

    Partly Sunny
    then Showers

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 45. Chance of precipitation is 70%.

    Low: 45 °F

    Showers
    Likely then
    Chance
    Showers

  • Thursday

    Thursday: Showers and thunderstorms, mainly after noon. Mostly cloudy, with a high near 69.

    High: 69 °F

    Chance
    Showers then
    T-storms

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before midnight, then a chance of showers. Mostly cloudy, with a low around 44.

    Low: 44 °F

    Showers

Detailed Forecast

Overnight
Areas of smoke. Mostly cloudy, with a low around 49. Calm wind.
Monday
A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 79. Light and variable wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 16 mph.
Monday Night
A chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 48. North northeast wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 30%.
Tuesday
A 30 percent chance of showers and thunderstorms after noon. Increasing clouds, with a high near 78. Calm wind becoming west 5 to 9 mph in the morning. Winds could gust as high as 16 mph.
Tuesday Night
Mostly cloudy, with a low around 49. North wind around 5 mph becoming calm in the evening.
Wednesday
Showers and possibly a thunderstorm after noon. High near 76. Chance of precipitation is 80%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 45. Chance of precipitation is 70%.
Thursday
Showers and thunderstorms, mainly after noon. Mostly cloudy, with a high near 69.
Thursday Night
Showers and possibly a thunderstorm before midnight, then a chance of showers. Mostly cloudy, with a low around 44.
Friday
A slight chance of showers, then showers and possibly a thunderstorm after noon. Mostly cloudy, with a high near 69.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 42.
Saturday
Showers and thunderstorms likely. Partly sunny, with a high near 70.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 42.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 71.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grand Lake CO
 40.23°N 105.82°W (Elev. 9199 ft)
Last Update:
12:46 am MDT Aug 10, 2026
Forecast Valid:
2am MDT Aug 10, 2026-6pm MDT Aug 16, 2026
 
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