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.

Overcast

50°F

10°C

Humidity 95%
Wind Speed Calm
Barometer 30.48 in
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 28 Aug 12:55 am MDT
Extended Forecast for

Grand Lake CO

  • Overnight

    Overnight: A 40 percent chance of showers. Mostly cloudy, with a low around 43. Light southwest wind.

    Low: 43 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers, then showers and thunderstorms likely after 11am. Mostly cloudy, with a high near 65. West southwest wind 3 to 8 mph. Chance of precipitation is 60%.

    High: 65 °F

    T-storms
    Likely

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 42. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 42 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Friday

    Friday: A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 63. Calm wind becoming west 5 to 7 mph in the afternoon. Winds could gust as high as 17 mph. Chance of precipitation is 60%.

    High: 63 °F

    Chance
    Showers then
    Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 40. West wind around 6 mph becoming calm in the evening. Winds could gust as high as 15 mph. Chance of precipitation is 50%.

    Low: 40 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, then showers and thunderstorms likely after 9am. Mostly cloudy, with a high near 64. Chance of precipitation is 70%.

    High: 64 °F

    Chance
    Showers then
    T-storms
    Likely

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 37.

    Low: 37 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Sunday

    Sunday: A slight chance of showers and thunderstorms after noon. Sunny, with a high near 68.

    High: 68 °F

    Sunny then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

Detailed Forecast

Overnight
A 40 percent chance of showers. Mostly cloudy, with a low around 43. Light southwest wind.
Thursday
A chance of showers, then showers and thunderstorms likely after 11am. Mostly cloudy, with a high near 65. West southwest wind 3 to 8 mph. Chance of precipitation is 60%.
Thursday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 42. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 20%.
Friday
A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 63. Calm wind becoming west 5 to 7 mph in the afternoon. Winds could gust as high as 17 mph. Chance of precipitation is 60%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 40. West wind around 6 mph becoming calm in the evening. Winds could gust as high as 15 mph. Chance of precipitation is 50%.
Saturday
A chance of showers, then showers and thunderstorms likely after 9am. Mostly cloudy, with a high near 64. Chance of precipitation is 70%.
Saturday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 37.
Sunday
A slight chance of showers and thunderstorms after noon. Sunny, with a high near 68.
Sunday Night
Mostly clear, with a low around 38.
Labor Day
Sunny, with a high near 70.
Monday Night
Mostly clear, with a low around 40.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 70.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 39.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 64.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grand Lake CO
 40.23°N 105.82°W (Elev. 9199 ft)
Last Update:
2:09 pm MDT Aug 27, 2025
Forecast Valid:
1am MDT Aug 28, 2025-6pm MDT Sep 3, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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