Taking the local weather in Onaway into account is an important factor for planning your visit, especially if you plan to spend your trip by the pool. The hottest months are usually August and July, with an average temperature of 17°C, while the coldest months are February and January, with an average of -4°C. The snowiest months in Onaway are January, November, March and February, with each month seeing an average of 41 cm of snowfall.