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

45°F

7°C

Humidity 48%
Wind Speed Calm
Barometer 30.57 in
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 5 Oct 12:35 am MDT
Extended Forecast for

Grand Lake CO

  • Overnight

    Overnight: Clear, with a low around 37. Calm wind.

    Low: 37 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 73. Calm wind becoming west 5 to 9 mph in the afternoon.

    High: 73 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 39. West northwest wind around 5 mph becoming calm in the evening.

    Low: 39 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers after 3pm. Increasing clouds, with a high near 73. Calm wind becoming west around 5 mph in the afternoon.

    High: 73 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 38. North wind around 5 mph becoming calm after midnight.

    Low: 38 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 71. Chance of precipitation is 20%.

    High: 71 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 37. Calm wind.
Monday
Sunny, with a high near 73. Calm wind becoming west 5 to 9 mph in the afternoon.
Monday Night
Mostly clear, with a low around 39. West northwest wind around 5 mph becoming calm in the evening.
Tuesday
A 20 percent chance of showers after 3pm. Increasing clouds, with a high near 73. Calm wind becoming west around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 38. North wind around 5 mph becoming calm after midnight.
Wednesday
A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 71. Chance of precipitation is 20%.
Wednesday Night
Mostly clear, with a low around 36.
Thursday
Sunny, with a high near 69.
Thursday Night
Partly cloudy, with a low around 36.
Friday
Sunny, with a high near 69.
Friday Night
Mostly clear, with a low around 36.
Saturday
Sunny, with a high near 67.
Saturday Night
Partly cloudy, with a low around 36.
Sunday
A chance of showers. Mostly sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grand Lake CO
 40.25°N 105.82°W (Elev. 8386 ft)
Last Update:
12:46 am MDT Oct 5, 2026
Forecast Valid:
12am MDT Oct 5, 2026-6pm MDT Oct 11, 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