The latest forecast from Environment Canada as of 11am:
***Special Weather Statement***
Appreciable rainfall on the way by early afternoon.
A warm front associated with a low pressure area will move through the region today, bringing a a couple of rounds of rain.
The initial band of rain from an area of thunderstorms that has since weakened is approaching from northern Indiana and Ohio. Rainfall amounts of 10 to 20 mm of rain are possible from this band as it moves through portions of Southwestern Ontario this afternoon. It will taper off a little later this afternoon followed by another round of showers tonight with some additional rainfall, albeit not overly significant.
***Special Weather Statement***
Today: Periods of drizzle changing to rain near noon. Fog patches developing early this afternoon. Amount 10mm to 20mm. Wind south 20 km/h. High 12 C (54 F).
Tonight: Rain. Risk of a thunderstorm overnight. Fog patches dissipating near midnight. Amount 5mm to 10mm. Wind southwest 30km/h. Temperature steady near 12 C (54 F).
Tuesday: Periods of rain beginning in the morning. Amount 5mm. Wind southwest 30km/h. High 15 C (59 F).
Tuesday Night: Showers. Low 10 C (50 F).
Wednesday: Showers. High 12 C (54 F).
Thursday: A mix of sun and cloud. High 2 C (36 F).
Friday: Cloudy with a 30% chance of rain showers or flurries. High 3 C (37 F).