Granby, ColoradoWhat's the Weather on Lake Granby? Granby, CO 63° Sunny 7:16 am6:21 pm MDT Feels like: 63°FWind: 9mph WSWHumidity: 13%Pressure: 30.06"HgUV index: 1 6 pm7 pm8 pm9 pm10 pm 57°F52°F45°F43°F39°F SunMonTueWedThu 61°F / 32°F59°F / 32°F59°F / 36°F61°F / 41°F59°F / 41°F