Environment Canada has issued a special weather statement for Kawartha Lakes and Peterborough.
A large and moisture laden Texas low is forecast to move towards the Great Lakes today, crossing Lake Huron and Georgian Bay into Central Ontario on Tuesday.
Rain will move into areas extending from the Golden Horseshoe to Lake Huron by early this evening, then spread northeast to remaining regions by midnight. Periods of rain will continue through Tuesday.
Total rainfall amounts of 20 to 30 millimetres are likely with this weather disturbance.
The rain will come to an end on Tuesday night.