You will need the sunscreen if you are outside on Thursday and Friday.
With highs of 29 C and 28 C respectively, the UV index will be 8 or very high on Thursday before cloudy periods and the chance for showers rolls in on the weekend.
The average high for this time of year is 13 C and the low is 3 C.
Thursday: Sunny. Wind becoming southwest 20 km/h gusting to 40 this morning. High 29. UV index 8 or very high.
Thursday Night: Clear. Low 10.
Friday: Sunny. High 28 except 20 near Lake Erie.
Saturday: Cloudy. High 24.
Sunday: Cloudy with 60 per cent chance of showers. High 22.
Monday: A mix of sun and cloud with 60 per cent chance of showers. High 11.
Tuesday: A mix of sun and cloud with 30 per cent chance of showers. High 15.
