Today – May 27, 2020
A mix of sun and cloud. Wind becoming south 20 km/h late this afternoon. High 29. Humidex 34. UV index 9 or very high.
Tonight
Partly cloudy. Wind south 20 km/h becoming light this evening. Low 17.
Heat warning
First heat event of the season continues this week.
Temperatures will peak again to near the thirty degree mark in many areas today. While temperatures Thursday will continue to be above normal, they will be a little lower than today due to more cloud cover and perhaps an isolated shower or thunderstorm in the afternoon.
Humidex values in the mid to upper thirties will prevail again this afternoon.
A cold front will deliver considerably cooler and less humid air to Southern Ontario on Friday.
Extreme heat affects everyone.
The risks are greater for young children, pregnant women, older adults, people with chronic illnesses and people working or exercising outdoors.
Drink plenty of water even before you feel thirsty and stay in a cool place.
Never leave people or pets inside a parked vehicle.
Heat warnings are issued when very high temperature or humidity conditions are expected to pose an elevated risk of heat illnesses, such as heat stroke or heat exhaustion.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@canada.ca or tweet reports using #ONStorm.
Thu, 28 May – A mix of sun and cloud with 40 percent chance of showers and risk of a thunderstorm. Wind becoming south 20 km/h in the afternoon. High 28. Humidex 33. UV index 9 or very high. Night – Cloudy with 30 percent chance of showers. Low 17.
Fri, 29 May – Cloudy with 60 percent chance of showers. High 19. Night – Cloudy with 30 percent chance of showers. Low 13.
Sat, 30 May – A mix of sun and cloud. High 21. Night – Clear. Low 8.
Sun, 31 May – Sunny. High 17. Night – Clear. Low 8.
Mon, 1 Jun – Sunny. High 22. Night – Cloudy periods. Low 11.
Tue, 2 Jun – Cloudy with 60 percent chance of showers. High 24.
