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.

Fair

42°F

6°C

Humidity 82%
Wind Speed E 3 mph
Barometer 30.08 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 11 Oct 6:15 am MDT
Extended Forecast for

Grand Lake CO

  • Today

    Today: A 20 percent chance of showers after noon. Mostly cloudy, with a high near 66. Calm wind becoming southwest 5 to 9 mph in the afternoon. Winds could gust as high as 22 mph.

    High: 66 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Tonight

    Tonight: A 30 percent chance of showers, mainly before 9pm. Partly cloudy, with a low around 34. Light and variable wind becoming west southwest 5 to 9 mph in the evening. Winds could gust as high as 21 mph.

    Low: 34 °F

    Chance
    Showers

  • Columbus Day

    Columbus Day: Mostly sunny, with a high near 60. West southwest wind 8 to 14 mph, with gusts as high as 28 mph.

    High: 60 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 30 percent chance of showers after midnight. Partly cloudy, with a low around 33. West southwest wind around 6 mph becoming calm after midnight. Winds could gust as high as 15 mph.

    Low: 33 °F

    Partly Cloudy
    then Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 3pm. Partly sunny, with a high near 59. Calm wind becoming south southwest 5 to 9 mph in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 40%.

    High: 59 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Rain showers likely before midnight, then rain likely, possibly mixed with snow showers. Mostly cloudy, with a low around 27. Chance of precipitation is 70%.

    Low: 27 °F

    Showers
    Likely then
    Rain/Snow
    Likely

  • Wednesday

    Wednesday: Rain and snow showers. Some thunder is also possible. High near 50. Chance of precipitation is 80%.

    High: 50 °F

    Rain/Snow

  • Wednesday Night

    Wednesday Night: Rain and snow showers likely, becoming all snow after 3am. Mostly cloudy, with a low around 23.

    Low: 23 °F

    Rain/Snow
    Likely

  • Thursday

    Thursday: A chance of snow showers. Partly sunny, with a high near 50.

    High: 50 °F

    Chance Snow
    Showers

Detailed Forecast

Today
A 20 percent chance of showers after noon. Mostly cloudy, with a high near 66. Calm wind becoming southwest 5 to 9 mph in the afternoon. Winds could gust as high as 22 mph.
Tonight
A 30 percent chance of showers, mainly before 9pm. Partly cloudy, with a low around 34. Light and variable wind becoming west southwest 5 to 9 mph in the evening. Winds could gust as high as 21 mph.
Columbus Day
Mostly sunny, with a high near 60. West southwest wind 8 to 14 mph, with gusts as high as 28 mph.
Monday Night
A 30 percent chance of showers after midnight. Partly cloudy, with a low around 33. West southwest wind around 6 mph becoming calm after midnight. Winds could gust as high as 15 mph.
Tuesday
A chance of showers, with thunderstorms also possible after 3pm. Partly sunny, with a high near 59. Calm wind becoming south southwest 5 to 9 mph in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 40%.
Tuesday Night
Rain showers likely before midnight, then rain likely, possibly mixed with snow showers. Mostly cloudy, with a low around 27. Chance of precipitation is 70%.
Wednesday
Rain and snow showers. Some thunder is also possible. High near 50. Chance of precipitation is 80%.
Wednesday Night
Rain and snow showers likely, becoming all snow after 3am. Mostly cloudy, with a low around 23.
Thursday
A chance of snow showers. Partly sunny, with a high near 50.
Thursday Night
A chance of snow showers. Mostly cloudy, with a low around 20.
Friday
Sunny, with a high near 53.
Friday Night
Mostly clear, with a low around 22.
Saturday
Sunny, with a high near 58.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Lake CO
 40.25°N 105.82°W (Elev. 8386 ft)
Last Update:
12:46 am MDT Oct 11, 2026
Forecast Valid:
6am MDT Oct 11, 2026-6pm MDT Oct 17, 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