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

59°F

15°C

Humidity 62%
Wind Speed SE 3 mph
Barometer 30.45 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 30 Aug 11:15 am MDT
Extended Forecast for

Grand Lake CO

  • Today

    Today: Showers and thunderstorms likely, mainly after 3pm. Mostly cloudy, with a high near 62. West southwest wind 5 to 8 mph becoming northwest in the afternoon. Chance of precipitation is 60%.

    High: 62 °F

    T-storms
    Likely

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly clear, with a low around 32. North northwest wind around 6 mph becoming calm in the evening. Winds could gust as high as 15 mph. Chance of precipitation is 20%.

    Low: 32 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 69. Calm wind becoming northwest 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 69 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 34. North wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 16 mph.

    Low: 34 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 72. Calm wind becoming north 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 72 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 69.

    High: 69 °F

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 69.

    High: 69 °F

    Sunny then
    Chance
    T-storms

Detailed Forecast

Today
Showers and thunderstorms likely, mainly after 3pm. Mostly cloudy, with a high near 62. West southwest wind 5 to 8 mph becoming northwest in the afternoon. Chance of precipitation is 60%.
Tonight
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly clear, with a low around 32. North northwest wind around 6 mph becoming calm in the evening. Winds could gust as high as 15 mph. Chance of precipitation is 20%.
Sunday
Sunny, with a high near 69. Calm wind becoming northwest 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.
Sunday Night
Mostly clear, with a low around 34. North wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 16 mph.
Labor Day
Sunny, with a high near 72. Calm wind becoming north 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.
Monday Night
Mostly clear, with a low around 35.
Tuesday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 69.
Tuesday Night
Mostly clear, with a low around 35.
Wednesday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 69.
Wednesday Night
Partly cloudy, with a low around 34.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 70.
Thursday Night
Partly cloudy, with a low around 35.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 71.
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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:
4:00 am MDT Aug 30, 2025
Forecast Valid:
11am MDT Aug 30, 2025-6pm MDT Sep 5, 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