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

67°F

19°C

Humidity 13%
Wind Speed W 9 mph
Barometer 30.47 in
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Last update 20 Mar 2:15 pm MDT
Extended Forecast for

Grand Lake CO

Red Flag Warning March 21, 11:00am until March 21, 10:00pm
Click here for hazard details and duration
Red Flag Warning

  • This Afternoon

    This Afternoon: Sunny, with a high near 66. West wind around 8 mph.

    High: 66 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 35. West wind around 6 mph becoming calm in the evening.

    Low: 35 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 73. Light west wind becoming west southwest 9 to 14 mph in the afternoon. Winds could gust as high as 23 mph.

    High: 73 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 34. West wind 9 to 14 mph becoming light west northwest after midnight. Winds could gust as high as 23 mph.

    Low: 34 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers after noon. Mostly sunny, with a high near 61. Calm wind becoming west 5 to 8 mph in the afternoon.

    High: 61 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 65.

    High: 65 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 66. West wind around 8 mph.
Tonight
Clear, with a low around 35. West wind around 6 mph becoming calm in the evening.
Saturday
Sunny, with a high near 73. Light west wind becoming west southwest 9 to 14 mph in the afternoon. Winds could gust as high as 23 mph.
Saturday Night
Mostly clear, with a low around 34. West wind 9 to 14 mph becoming light west northwest after midnight. Winds could gust as high as 23 mph.
Sunday
A 20 percent chance of showers after noon. Mostly sunny, with a high near 61. Calm wind becoming west 5 to 8 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 28.
Monday
Partly sunny, with a high near 62.
Monday Night
Mostly cloudy, with a low around 36.
Tuesday
Partly sunny, with a high near 65.
Tuesday Night
Mostly clear, with a low around 36.
Wednesday
Sunny, with a high near 69.
Wednesday Night
Mostly clear, with a low around 35.
Thursday
Sunny, with a high near 62.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grand Lake CO
 40.25°N 105.85°W (Elev. 8599 ft)
Last Update:
12:46 pm MDT Mar 20, 2026
Forecast Valid:
2pm MDT Mar 20, 2026-6pm MDT Mar 26, 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