Heat warning remains in effect.
Mix of sun and cloud today with the chance of afternoon showers or thunderstorms and the high 31, humidex 37.
Cooling down tonight with chance of early evening showers, risk of thunderstorm and windy, the low 13.
Sunny Tuesday, becoming a mix of sun and cloud late in the morning with a high 22.
Mix of sun and cloud Wednesday with a high 25.
Sunny and 25 Thursday.
Mix of sun and cloud Friday and the high 27.
Here are the details of the heat warning from Environment Canada in effect for:
- Barrie - Collingwood - Hillsdale
- Midland - Coldwater - Orr Lake
- Orillia - Lagoon City - Washago
Summer arrives in a blaze of heat.
Summer officially arrives today and Mother Nature is delivering weather to match the calendar.
The most significant heat episode of the year so far is occurring across much of Southern Ontario.
Building heat over the past couple of days will continue today with temperatures forecast to top off in the low to mid thirties.
Later today, an approaching cold front will herald the arrival of scattered showers and thunderstorms, followed by cooler conditions tonight.
These conditions pose a health risk when you are not used to the heat.
Everyone is at risk from heat, especially older adults, infants and young children, and people with chronic illnesses.
You are advised to 1) drink plenty of cool liquids before feeling thirsty, and 2) keep cool by dressing for the weather and spending a few hours each day in a cool place.
Please monitor the latest forecasts and warnings from Environment Canada at www.weather.gc.ca.
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 [email protected] or tweet reports to #ONStorm.
