Tonight: Mainly clear, then becoming partly cloudy. Warm with lows in the lower 60s. Light winds.

Day: Showers with a chance of thunderstorms. Locally heavy rainfall possible. Warm and more humid with highs in the lower 70s. Southwest winds 10 to 15 mph. Chance of rain near 100 percent.

Night: Showers in the evening, then a chance of showers overnight. Locally heavy rainfall possible in the evening. Cooler with lows in the upper 40s. Northwest winds 5 to 10 mph. Chance of rain near 100 percent.

Day: Sunny. Highs in the lower 60s. North winds 10 to 15 mph, becoming northwest.

Night: Becoming mainly clear. Lows ranging from the mid 30s inland to around 40 along the lake Ontario shore. North winds 10 to 15 mph, diminishing to 5 to 10 mph.

Day: Sunny. Highs in the mid 50s.

Night: Clear with widespread frost developing. Lows in the mid 30s.

Day: Sunny. Highs in the mid 60s.

Night: Mainly clear. Lows in the mid 40s. Highs in the upper 60s.

Day: Mainly clear. Lows in the mid 40s. Highs in the upper 60s.

Day: Mainly clear. Lows in the mid 40s. Highs in the upper 60s.

Day: Mainly clear. Lows in the mid 40s. Highs in the upper 60s.

Night: Partly cloudy. Lows in the mid 40s. Highs in the upper 60s.