National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Granby-Grand County Airport (KGNB)

Lat: 40.09°NLon: 105.92°WElev: 8207ft.

Fair

49°F

9°C

Humidity 63%
Wind Speed Calm
Barometer 30.56 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 25 Aug 2:15 am MDT
Extended Forecast for

3 Miles SSW Grand Lake CO

  • Overnight

    Overnight: Partly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 75. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 16 mph.

    High: 75 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 43. North northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 43 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms, mainly after 2pm. Increasing clouds, with a high near 75. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

    High: 75 °F

    Sunny then
    Chance
    T-storms

  • Wednesday Night

    Wednesday 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 41. East southeast wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 20%.

    Low: 41 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 76.

    High: 76 °F

    Sunny then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 44. Calm wind.
Tuesday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 75. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 16 mph.
Tuesday Night
Partly cloudy, with a low around 43. North northwest wind 5 to 7 mph becoming calm in the evening.
Wednesday
A 50 percent chance of showers and thunderstorms, mainly after 2pm. Increasing clouds, with a high near 75. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Wednesday 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 41. East southeast wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 20%.
Thursday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 76.
Thursday Night
Partly cloudy, with a low around 43.
Friday
Mostly sunny, with a high near 77.
Friday Night
Mostly cloudy, with a low around 45.
Saturday
Partly sunny, with a high near 76. Breezy.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 43.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 72. Breezy.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 41.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 73.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Grand Lake CO
 40.21°N 105.84°W (Elev. 8399 ft)
Last Update:
12:46 am MDT Aug 25, 2026
Forecast Valid:
2am MDT Aug 25, 2026-6pm MDT Aug 31, 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