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

44°F

7°C

Humidity 82%
Wind Speed Calm
Barometer 30.42 in
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 2 Sep 7:55 am MDT
Extended Forecast for

11 Miles SSE Williams Fork Reservoir CO

  • Today

    Today: Sunny, with a high near 71. Light south southwest wind becoming west southwest 8 to 13 mph in the morning. Winds could gust as high as 22 mph.

    High: 71 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 46. West wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.

    Low: 46 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 73. Light and variable wind becoming west southwest 5 to 10 mph in the morning. Winds could gust as high as 22 mph.

    High: 73 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 45. West wind 5 to 8 mph becoming light and variable in the evening. Winds could gust as high as 18 mph.

    Low: 45 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 75. Calm wind becoming west 5 to 8 mph in the afternoon. Winds could gust as high as 17 mph.

    High: 75 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 72.

    High: 72 °F

    Partly Sunny
    then Showers
    Likely

Detailed Forecast

Today
Sunny, with a high near 71. Light south southwest wind becoming west southwest 8 to 13 mph in the morning. Winds could gust as high as 22 mph.
Tonight
Mostly clear, with a low around 46. West wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.
Thursday
Sunny, with a high near 73. Light and variable wind becoming west southwest 5 to 10 mph in the morning. Winds could gust as high as 22 mph.
Thursday Night
Mostly clear, with a low around 45. West wind 5 to 8 mph becoming light and variable in the evening. Winds could gust as high as 18 mph.
Friday
Sunny, with a high near 75. Calm wind becoming west 5 to 8 mph in the afternoon. Winds could gust as high as 17 mph.
Friday Night
Partly cloudy, with a low around 47.
Saturday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 74.
Saturday Night
Mostly cloudy, with a low around 50.
Sunday
Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 72.
Sunday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 49.
Labor Day
A chance of showers and thunderstorms. Partly sunny, with a high near 72.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 48.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 70.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles SSE Williams Fork Reservoir CO
 39.9°N 106.1°W (Elev. 8573 ft)
Last Update:
3:41 am MDT Sep 2, 2026
Forecast Valid:
8am MDT Sep 2, 2026-6pm MDT Sep 8, 2026
 
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Additional Resources

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National Digital Forecast Database Weather Element Forecast

Chance of Precipitation