The average temperature in Cairo the average temperature is 40.41 degrees in summer, with precipitation around 0.5 mm , Mosinee, WI's temperatures reach 30.72 during the hot season, with 12.0 average of rain rate . In winter, however, weather indicators show around -25.46 degrees in Mosinee, WI, compared to the 5.68 average degrees reported in Cairo. During the winter period, Cairo can register 0.9 mm precipitation, while Mosinee, WI have an average of 6.0 mm rain level.