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

Hazardous Weather Conditions

Current conditions at

Granby-Grand County Airport (KGNB)

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

Fair

69°F

21°C

Humidity 24%
Wind Speed NW 6 mph
Barometer 30.36 in
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 12 Jul 8:55 pm MDT
Extended Forecast for

Grand Lake CO

  • Tonight

    Tonight: Mostly clear, with a low around 41. Light north northeast wind.

    Low: 41 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 77. Calm wind becoming east around 6 mph in the afternoon. Winds could gust as high as 15 mph.

    High: 77 °F

    Sunny then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 42. South southeast wind around 6 mph becoming calm after midnight.

    Low: 42 °F

    Decreasing
    Clouds

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 79. Calm wind becoming west 5 to 7 mph in the afternoon. Winds could gust as high as 16 mph.

    High: 79 °F

    Sunny then
    Chance
    T-storms

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 41. South wind around 6 mph becoming calm after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 20%.

    Low: 41 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 80.

    High: 80 °F

    Sunny then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 41.

    Low: 41 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: Showers and thunderstorms likely after noon. Partly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny
    then T-storms
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 41. Light north northeast wind.
Sunday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 77. Calm wind becoming east around 6 mph in the afternoon. Winds could gust as high as 15 mph.
Sunday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 42. South southeast wind around 6 mph becoming calm after midnight.
Monday
A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 79. Calm wind becoming west 5 to 7 mph in the afternoon. Winds could gust as high as 16 mph.
Monday Night
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 41. South wind around 6 mph becoming calm after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 20%.
Tuesday
A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 80.
Tuesday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 41.
Wednesday
Showers and thunderstorms likely after noon. Partly sunny, with a high near 80.
Wednesday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 42.
Thursday
Showers and thunderstorms likely after noon. Partly sunny, with a high near 78.
Thursday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 41.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 79.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 43.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Lake CO
 40.25°N 105.85°W (Elev. 8599 ft)
Last Update:
2:08 pm MDT Jul 12, 2025
Forecast Valid:
9pm MDT Jul 12, 2025-6pm MDT Jul 19, 2025
 
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