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.

Mostly Cloudy

21°C

69°F

Humidity 41%
Wind Speed E 17 km/h
Barometer 30.34 in
Dewpoint 7°C (45°F)
Visibility 16 km
Last update 16 Jul 7:35 pm MDT
Extended Forecast for

Grand Lake CO

  • Tonight

    Tonight: A 20 percent chance of showers before 8pm. Mostly clear, with a low around 8. East wind 13 to 18 km/h decreasing to 5 to 10 km/h after midnight. Winds could gust as high as 29 km/h.

    Low: 8 °C

    Slight Chance
    Showers then
    Mostly Clear

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 26. Light and variable wind becoming east 9 to 14 km/h in the afternoon. Winds could gust as high as 24 km/h.

    High: 26 °C

    Sunny then
    Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 8. East wind 11 to 16 km/h becoming light east northeast after midnight. Winds could gust as high as 29 km/h.

    Low: 8 °C

    Mostly Clear

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms after noon. Increasing clouds, with a high near 26. Light and variable wind becoming east 6 to 11 km/h in the afternoon. Winds could gust as high as 26 km/h.

    High: 26 °C

    Sunny then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 9. East southeast wind 6 to 11 km/h becoming light and variable after midnight. Winds could gust as high as 24 km/h.

    Low: 9 °C

    Partly Cloudy

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 28.

    High: 28 °C

    Sunny then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 9.

    Low: 9 °C

    Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Showers and thunderstorms likely after noon. Partly sunny, with a high near 27.

    High: 27 °C

    Sunny then
    T-storms
    Likely

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before midnight, then a slight chance of showers. Mostly cloudy, with a low around 9.

    Low: 9 °C

    Showers
    Likely

Detailed Forecast

Tonight
A 20 percent chance of showers before 8pm. Mostly clear, with a low around 8. East wind 13 to 18 km/h decreasing to 5 to 10 km/h after midnight. Winds could gust as high as 29 km/h.
Friday
A 30 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 26. Light and variable wind becoming east 9 to 14 km/h in the afternoon. Winds could gust as high as 24 km/h.
Friday Night
Mostly clear, with a low around 8. East wind 11 to 16 km/h becoming light east northeast after midnight. Winds could gust as high as 29 km/h.
Saturday
A 30 percent chance of showers and thunderstorms after noon. Increasing clouds, with a high near 26. Light and variable wind becoming east 6 to 11 km/h in the afternoon. Winds could gust as high as 26 km/h.
Saturday Night
Partly cloudy, with a low around 9. East southeast wind 6 to 11 km/h becoming light and variable after midnight. Winds could gust as high as 24 km/h.
Sunday
A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 28.
Sunday Night
A 40 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 9.
Monday
Showers and thunderstorms likely after noon. Partly sunny, with a high near 27.
Monday Night
Showers likely and possibly a thunderstorm before midnight, then a slight chance of showers. Mostly cloudy, with a low around 9.
Tuesday
A slight chance of showers, then showers and possibly a thunderstorm after noon. Partly sunny, with a high near 24.
Tuesday Night
Showers and possibly a thunderstorm. Mostly cloudy, with a low around 8.
Wednesday
Showers and possibly a thunderstorm. Partly sunny, with a high near 24.
Wednesday Night
Showers and possibly a thunderstorm. Mostly cloudy, with a low around 8.
Thursday
Showers and possibly a thunderstorm. Mostly cloudy, with a high near 23.
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Lake CO
 40.23°N 105.82°W (Elev. 9199 m)
Last Update:
12:46 pm MDT Jul 16, 2026
Forecast Valid:
7pm MDT Jul 16, 2026-6pm MDT Jul 23, 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