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.

Thunderstorm Light Drizzle

64°F

18°C

Humidity 50%
Wind Speed N 10 G 16 mph
Barometer 30.50 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 18 Aug 10:15 pm MDT
Extended Forecast for

Granby CO

  • Tonight

    Tonight: A 30 percent chance of showers, mainly before midnight. Mostly cloudy, with a low around 42. Light and variable wind.

    Low: 42 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms between noon and 3pm. Mostly sunny, with a high near 81. Light and variable wind becoming west northwest 9 to 14 mph in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 20%.

    High: 81 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 42. West northwest wind 6 to 11 mph becoming light and variable in the evening. Winds could gust as high as 18 mph.

    Low: 42 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 84. Light and variable wind becoming west northwest 6 to 11 mph in the afternoon. Winds could gust as high as 21 mph.

    High: 84 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 44. Northwest wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 16 mph.

    Low: 44 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny
    then Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 43.

    Low: 43 °F

    Chance
    Showers then
    Mostly Cloudy

Detailed Forecast

Tonight
A 30 percent chance of showers, mainly before midnight. Mostly cloudy, with a low around 42. Light and variable wind.
Wednesday
A slight chance of showers and thunderstorms between noon and 3pm. Mostly sunny, with a high near 81. Light and variable wind becoming west northwest 9 to 14 mph in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 20%.
Wednesday Night
Mostly clear, with a low around 42. West northwest wind 6 to 11 mph becoming light and variable in the evening. Winds could gust as high as 18 mph.
Thursday
Sunny, with a high near 84. Light and variable wind becoming west northwest 6 to 11 mph in the afternoon. Winds could gust as high as 21 mph.
Thursday Night
Partly cloudy, with a low around 44. Northwest wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 16 mph.
Friday
Sunny, with a high near 85.
Friday Night
Partly cloudy, with a low around 46.
Saturday
Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 83.
Saturday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 43.
Sunday
Showers and thunderstorms likely after noon. Partly sunny, with a high near 80.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 42.
Monday
Showers and thunderstorms likely. Partly sunny, with a high near 80.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 40.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Granby CO
 40.09°N 105.95°W (Elev. 7999 ft)
Last Update:
12:46 pm MDT Aug 18, 2026
Forecast Valid:
10pm MDT Aug 18, 2026-6pm MDT Aug 25, 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