| Tonight |
 | Tonight: Mainly clear this evening...Then becoming mostly cloudy. Lows in the upper 50s. Light winds. |
| Sunday May 27 |
 | Day: Showers and thunderstorms likely. Highs ranging from the mid 70s along the lake Ontario shore to the lower 80s inland. Southeast winds 10 mph or less...Becoming east 10 to 15 mph. Chance of rain 60 percent. |
| Night: Mostly cloudy. A chance of showers and thunderstorms in the evening. Warm with lows in the lower 60s. Southwest winds 10 to 15 mph...Becoming south 10 mph or less. Chance of rain 50 percent. |
| Monday May 28 |
 | Day: Partly to mostly sunny. Hot and humid with highs ranging from the mid 80s along the lake Ontario shore to the lower 90s inland. Southwest winds 10 mph or less...Increasing to 10 to 15 mph. |
| Night: Partly cloudy in the evening...Then mostly cloudy with a chance of showers and thunderstorms overnight. Warm and muggy with lows in the upper 60s. Southwest winds 10 to 15 mph...Becoming south. Chance of rain 30 percent. |
| Tuesday May 29 |
| Day: Showers and thunderstorms likely. Highs in the mid 80s. Chance of rain 60 percent. |
| Night: Showers and thunderstorms likely. Lows around 60. Chance of rain 60 percent. |
| Wednesday May 30 |
 | Day: Partly sunny with a chance of showers and thunderstorms. Highs in the lower 70s. Chance of rain 30 percent. |
| Night: Mostly cloudy. Lows in the lower 50s. |
| Thursday May 31 |
 | Day: Partly sunny. Highs in the upper 60s. |
| Night: Mostly cloudy. Lows in the lower 50s. |
| Friday Jun 1 |
 | Day: Mostly cloudy with a 40 percent chance of showers. Highs around 70. |
| Night: Cloudy with a 40 percent chance of showers. Lows in the mid 50s. |
| Saturday Jun 2 |
| Day: Mostly cloudy with a 40 percent chance of showers. Highs in the lower 70s. |
