Granby, ColoradoWhat's the Weather on Lake Granby? Granby, CO -2° Mostly Cloudy 7:22 am5:02 pm MST Feels like: -2°FWind: 0mph NNEHumidity: 79%Pressure: 30.26"HgUV index: 0 1 am2 am3 am4 am5 am 0°F-2°F3°F1°F1°F TueWedThuFriSat 18°F / 0°F23°F / 3°F36°F / 7°F30°F / 9°F12°F / -13°F