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

58°F

14°C

Humidity 32%
Wind Speed Calm
Barometer 30.30 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 4 Aug 11:55 pm MDT
Extended Forecast for

Grand Lake CO

Red Flag Warning August 5, 12:00pm until August 5, 07:00pm
Click here for hazard details and duration
Red Flag Warning

  • Overnight

    Overnight: Patchy smoke before 3am. Mostly clear, with a low around 45. South wind around 5 mph becoming calm.

    Low: 45 °F

    Patchy Smoke

  • Wednesday

    Wednesday: Patchy smoke after noon. Sunny, with a high near 76. Breezy, with a light and variable wind becoming west 10 to 15 mph in the morning. Winds could gust as high as 25 mph.

    High: 76 °F

    Sunny then
    Patchy Smoke
    and Breezy

  • Wednesday Night

    Wednesday Night: Patchy smoke after 9pm. Mostly clear, with a low around 46. West wind 9 to 14 mph becoming light and variable after midnight. Winds could gust as high as 24 mph.

    Low: 46 °F

    Patchy Smoke

  • Thursday

    Thursday: Sunny, with a high near 80. Light southwest wind becoming west 8 to 13 mph in the morning. Winds could gust as high as 22 mph.

    High: 80 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 50. West northwest wind 6 to 11 mph becoming light west after midnight. Winds could gust as high as 23 mph.

    Low: 50 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy smoke before 3am. Mostly clear, with a low around 45. South wind around 5 mph becoming calm.
Wednesday
Patchy smoke after noon. Sunny, with a high near 76. Breezy, with a light and variable wind becoming west 10 to 15 mph in the morning. Winds could gust as high as 25 mph.
Wednesday Night
Patchy smoke after 9pm. Mostly clear, with a low around 46. West wind 9 to 14 mph becoming light and variable after midnight. Winds could gust as high as 24 mph.
Thursday
Sunny, with a high near 80. Light southwest wind becoming west 8 to 13 mph in the morning. Winds could gust as high as 22 mph.
Thursday Night
Clear, with a low around 50. West northwest wind 6 to 11 mph becoming light west after midnight. Winds could gust as high as 23 mph.
Friday
Sunny, with a high near 82.
Friday Night
Mostly clear, with a low around 51.
Saturday
Sunny, with a high near 82.
Saturday Night
Partly cloudy, with a low around 52.
Sunday
A slight chance of showers and thunderstorms after noon. Sunny, with a high near 82.
Sunday Night
Partly cloudy, with a low around 53.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 81.
Monday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 51.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grand Lake CO
 40.23°N 105.79°W (Elev. 8599 ft)
Last Update:
8:42 pm MDT Aug 4, 2026
Forecast Valid:
12am MDT Aug 5, 2026-6pm MDT Aug 11, 2026
 
Forecast Discussion
 
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Additional Resources

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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