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.

Mostly Cloudy

76°F

24°C

Humidity 16%
Wind Speed W 12 mph
Barometer 30.30 in
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Heat Index76°F (24°C)
Last update 9 Aug 4:15 pm MDT
Extended Forecast for

Grand Lake CO

  • Tonight

    Tonight: A slight chance of showers and thunderstorms, then a chance of showers after 1am. Cloudy, then gradually becoming partly cloudy, with a low around 38. West northwest wind 5 to 9 mph becoming light and variable after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 30%.

    Low: 38 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 9am. Partly sunny, with a high near 70. Calm wind becoming west southwest 5 to 8 mph in the morning. Winds could gust as high as 15 mph. Chance of precipitation is 50%.

    High: 70 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday 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 34. Northeast wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

    Low: 34 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: Increasing clouds, with a high near 74. Calm wind becoming north northeast 5 to 7 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 74 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: Partly cloudy, with a low around 37. East northeast wind 5 to 7 mph becoming calm after midnight. Winds could gust as high as 18 mph.

    Low: 37 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms, then a chance of showers after 1am. Cloudy, then gradually becoming partly cloudy, with a low around 38. West northwest wind 5 to 9 mph becoming light and variable after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 30%.
Sunday
A chance of showers, with thunderstorms also possible after 9am. Partly sunny, with a high near 70. Calm wind becoming west southwest 5 to 8 mph in the morning. Winds could gust as high as 15 mph. Chance of precipitation is 50%.
Sunday 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 34. Northeast wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Monday
Increasing clouds, with a high near 74. Calm wind becoming north northeast 5 to 7 mph in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Partly cloudy, with a low around 37. East northeast wind 5 to 7 mph becoming calm after midnight. Winds could gust as high as 18 mph.
Tuesday
Mostly sunny, with a high near 77.
Tuesday Night
Partly cloudy, with a low around 39.
Wednesday
Mostly sunny, with a high near 81.
Wednesday Night
Partly cloudy, with a low around 41.
Thursday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 81.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 41.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 80.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 40.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 77.
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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:
2:37 pm MDT Aug 9, 2025
Forecast Valid:
4pm MDT Aug 9, 2025-6pm MDT Aug 16, 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