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.

Partly Cloudy

74°F

23°C

Humidity 20%
Wind Speed S 15 G 22 mph
Barometer 29.93 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 11 Oct 4:15 pm MDT
Extended Forecast for

Grand Lake CO

  • Tonight

    Tonight: A 30 percent chance of showers before midnight. Mostly cloudy, with a low around 39. Breezy, with a west southwest wind 6 to 16 mph, with gusts as high as 29 mph.

    Low: 39 °F

    Chance
    Showers then
    Partly Cloudy
    and Breezy

  • Columbus Day

    Columbus Day: Mostly cloudy, then gradually becoming sunny, with a high near 60. West southwest wind 10 to 14 mph, with gusts as high as 24 mph.

    High: 60 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: A 20 percent chance of showers after midnight. Mostly clear, with a low around 35. South southwest wind 5 to 7 mph becoming calm after midnight.

    Low: 35 °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 57. Calm wind becoming south southwest 5 to 8 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 40%.

    High: 57 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Rain showers likely before 3am, then rain and snow showers likely. Cloudy, with a low around 32. East wind 5 to 9 mph. Chance of precipitation is 70%.

    Low: 32 °F

    Showers
    Likely then
    Rain/Snow
    Likely

  • Wednesday

    Wednesday: Snow showers, possibly mixed with rain. Some thunder is also possible. High near 48. Chance of precipitation is 90%.

    High: 48 °F

    Rain/Snow

  • Wednesday Night

    Wednesday Night: Rain and snow showers, becoming all snow after midnight. Some thunder is also possible. Low around 27. Chance of precipitation is 80%.

    Low: 27 °F

    Rain/Snow
    then Snow
    Showers
    Likely

  • Thursday

    Thursday: A chance of snow showers before 3pm, then a slight chance of rain showers. Partly sunny, with a high near 47.

    High: 47 °F

    Chance Snow
    Showers then
    Slight Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A chance of snow showers. Mostly cloudy, with a low around 25.

    Low: 25 °F

    Chance Snow
    Showers

Detailed Forecast

Tonight
A 30 percent chance of showers before midnight. Mostly cloudy, with a low around 39. Breezy, with a west southwest wind 6 to 16 mph, with gusts as high as 29 mph.
Columbus Day
Mostly cloudy, then gradually becoming sunny, with a high near 60. West southwest wind 10 to 14 mph, with gusts as high as 24 mph.
Monday Night
A 20 percent chance of showers after midnight. Mostly clear, with a low around 35. South southwest 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 57. Calm wind becoming south southwest 5 to 8 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 40%.
Tuesday Night
Rain showers likely before 3am, then rain and snow showers likely. Cloudy, with a low around 32. East wind 5 to 9 mph. Chance of precipitation is 70%.
Wednesday
Snow showers, possibly mixed with rain. Some thunder is also possible. High near 48. Chance of precipitation is 90%.
Wednesday Night
Rain and snow showers, becoming all snow after midnight. Some thunder is also possible. Low around 27. Chance of precipitation is 80%.
Thursday
A chance of snow showers before 3pm, then a slight chance of rain showers. Partly sunny, with a high near 47.
Thursday Night
A chance of snow showers. Mostly cloudy, with a low around 25.
Friday
Sunny, with a high near 52.
Friday Night
Mostly clear, with a low around 29.
Saturday
Sunny, with a high near 57.
Saturday Night
Mostly clear, with a low around 32.
Sunday
Mostly sunny, with a high near 58.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Lake CO
 40.23°N 105.79°W (Elev. 8599 ft)
Last Update:
12:46 pm MDT Oct 11, 2026
Forecast Valid:
4pm MDT Oct 11, 2026-6pm MDT Oct 18, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation