Granby, ColoradoWhat's the Weather on Lake Granby? Granby, CO 77° Fair 5:46 am8:33 pm MDT Feels like: 77°FWind: 18mph WNWHumidity: 19%Pressure: 30.34"HgUV index: 8 4 pm5 pm6 pm7 pm8 pm 77°F75°F75°F73°F68°F WedThuFriSatSun 73°F / 46°F75°F / 50°F73°F / 48°F72°F / 46°F73°F / 46°F