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.

Mostly Cloudy

73°F

23°C

Humidity 21%
Wind Speed S 13 G 25 mph
Barometer 29.93 in
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 11 Oct 3:15 pm MDT
Extended Forecast for

Grand Lake CO

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 64. South southwest wind 8 to 10 mph, with gusts as high as 18 mph.

    High: 64 °F

    Mostly Cloudy

  • Tonight

    Tonight: A 30 percent chance of showers before midnight. Mostly cloudy, with a low around 35. Southwest wind 6 to 14 mph, with gusts as high as 28 mph.

    Low: 35 °F

    Chance
    Showers then
    Partly Cloudy

  • Columbus Day

    Columbus Day: Mostly cloudy, then gradually becoming sunny, with a high near 59. West southwest wind 10 to 13 mph, with gusts as high as 23 mph.

    High: 59 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: A 20 percent chance of showers after midnight. Partly cloudy, with a low around 30. South wind 5 to 7 mph becoming calm after midnight.

    Low: 30 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 3pm. Partly sunny, with a high near 55. Calm wind becoming southwest 5 to 9 mph in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 40%.

    High: 55 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Rain showers likely before 3am, then rain and snow showers likely. Cloudy, with a low around 27. Chance of precipitation is 70%.

    Low: 27 °F

    Showers
    Likely then
    Rain/Snow
    Likely

  • Wednesday

    Wednesday: Snow showers, possibly mixed with rain. Some thunder is also possible. High near 46. Chance of precipitation is 90%.

    High: 46 °F

    Rain/Snow

  • Wednesday Night

    Wednesday Night: Rain and snow showers, becoming all snow after 9pm. Some thunder is also possible. Mostly cloudy, with a low around 22.

    Low: 22 °F

    Rain/Snow
    then Snow
    Showers
    Likely

  • Thursday

    Thursday: A chance of snow showers, mainly before noon. Partly sunny, with a high near 46.

    High: 46 °F

    Chance Snow
    Showers

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 64. South southwest wind 8 to 10 mph, with gusts as high as 18 mph.
Tonight
A 30 percent chance of showers before midnight. Mostly cloudy, with a low around 35. Southwest wind 6 to 14 mph, with gusts as high as 28 mph.
Columbus Day
Mostly cloudy, then gradually becoming sunny, with a high near 59. West southwest wind 10 to 13 mph, with gusts as high as 23 mph.
Monday Night
A 20 percent chance of showers after midnight. Partly cloudy, with a low around 30. South wind 5 to 7 mph becoming calm after midnight.
Tuesday
A chance of showers, with thunderstorms also possible after 3pm. Partly sunny, with a high near 55. Calm wind becoming southwest 5 to 9 mph in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 40%.
Tuesday Night
Rain showers likely before 3am, then rain and snow showers likely. Cloudy, with a low around 27. Chance of precipitation is 70%.
Wednesday
Snow showers, possibly mixed with rain. Some thunder is also possible. High near 46. Chance of precipitation is 90%.
Wednesday Night
Rain and snow showers, becoming all snow after 9pm. Some thunder is also possible. Mostly cloudy, with a low around 22.
Thursday
A chance of snow showers, mainly before noon. Partly sunny, with a high near 46.
Thursday Night
A chance of snow showers. Mostly cloudy, with a low around 19.
Friday
Sunny, with a high near 51.
Friday Night
Mostly clear, with a low around 23.
Saturday
Sunny, with a high near 56.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Lake CO
 40.28°N 105.82°W (Elev. 9275 ft)
Last Update:
12:46 pm MDT Oct 11, 2026
Forecast Valid:
3pm MDT Oct 11, 2026-6pm MDT Oct 17, 2026
 
Forecast Discussion
 
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Additional Resources

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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