Severe thunderstorm watch issued across eastern Ontario
A severe thunderstorm watch has been issued for a wide swath of eastern Ontario Monday afternoon.
Environment Canada says conditions are favourable for the development of severe thunderstorms that may be capable of producing strong wind gusts of up to 90 km/h and heavy rain.
Severe t-storm watch eastern Ont
A severe thunderstorm watch issued for parts of eastern Ontario at 1:20 p.m. July 7, 2025. (Environment Canada)
The city of Ottawa was drenched by rainshowers Monday morning as a system of unsettled weather moved across the region.
Environment Canada says 25.1 millimetres of rain fell at the Ottawa Airport between Sunday afternoon and late Monday morning. The Gatineau airport saw 33 mm over the same 24-hour period.
Environment Canada's weather outlook for Monday calls for a high of 22 C with a humidex of 30. Showers are expected to end in the afternoon.
The UV index for Monday is 4, or moderate.
There is a chance of showers and thunderstorms into the evening, with a low of 16 C overnight.
Tuesday's forecast has a mix of sun and cloud with a high of 25 C and a humidex of 30. The expected UV index is 9, or very high.
Wednesday's outlook is partly cloudy with a high of 27 C and a 30 per cent chance of showers.
The average high this time of year is around 26 C.
Hashtags
Try Our AI Features
Explore what Daily8 AI can do for you:
Comments
No comments yet...
Related Articles
CTV News
an hour ago
- CTV News
Air quality expert discusses impact of wildfires, smoke duration, and long-term preparedness
Watch Air quality expert Jeffrey Brook discusses wildfire smoke, its impact, how long it may last, and how we can adapt to the new normal.
CTV News
2 hours ago
- CTV News
Severe thunderstorm warning in effect for Windsor, Ont. region
A downed tree on Giles Boulevard East on July 12, 2025. (Robert Lothian/CTV News Windsor) Environment Canada has issued a severe thunderstorm warning for the Windsor, Ont. region. A severe thunderstorm capable of producing very strong wind gusts, up to nickel size hail and heavy rain could be making its way through the region Saturday afternoon. According to Environment Canada, the affected locations include Windsor, Leamington, Amherstburg, Tecumseh, Kingsville, Belle River, Lakeshore, Point Pelee National Park, LaSalle, South Windsor, McGregor, Windsor Airport, Colchester, Harrow, Maidstone, Essex, Cottam, Stoney Point and Comber. A heat warning also remains in effect. Take immediate cover if a thunderstorm approaches. Here's a look at the rest of the forecast Saturday: Cloudy. Showers with a few thunderstorms then 40 percent chance of showers late this afternoon. Risk of a thunderstorm late this afternoon. Wind south 20 km/h gusting to 40. High 33. Humidex 44. Saturday night: Mainly cloudy. 60 percent chance of showers this evening with risk of a thunderstorm. Wind south 20 km/h gusting to 40 becoming light early this evening. Low 22. Sunday: A mix of sun and cloud. Wind becoming west 20 km/h near noon. High 30. Humidex 38. Monday: Sunny. High 30. Tuesday: A mix of sun and cloud with 30 percent chance of showers. High 32. Wednesday: Cloudy with 30 percent chance of showers. High 29.
CTV News
2 hours ago
- CTV News
Heat, storm and air quality for several provinces: Environment Canada
Heat, air quality and storm warnings are in effect for some provinces and territories in Canada. (Environment Canada) Environment Canada has issued heat, air quality and 'severe' thunderstorm warnings for several provinces and territories this weekend. There are a total of 191 alerts regarding heat and thunderstorms, and 342 alerts for air quality in place as of Saturday, according to the weather service. Heat and thunderstorm warnings Ontario, Quebec, Alberta and Newfoundland and Labrador have been issued heat warnings, with storm alerts active in Quebec and Ontario as well. Alberta could see temperatures around 30 C on Saturday through Sunday. Cooler temperatures are forecast for Monday, according to Environment Canada. 'Monitor for symptoms of heat stroke or heat exhaustion, such as high body temperature, lack of sweat, confusion, fainting, and unconsciousness,' the alert advises. Newfoundland and Labrador will see 'an extended period of hot and dry weather,' with daytime temperatures hitting 33 C. Southern Ontario is expected to see hot and humid conditions through the next week. Temperatures are expected to ease on Sunday and Monday, before hot and humid conditions return on Tuesday, the weather service said. Daytime highs could reach 32 C with a humidex of 35 to 40. Areas in Ontario on thunderstorm watch include Dunchurch, Thessalon, Eastern Algonquin Park, Ragner Lake, Killarney, Foleyet, Greater Sudbury, Baysville, Englehart, Mattawa, Burk's Falls, Temagami, Iroquois Falls, Killbear Park, French River and Lake of Two Rivers. 'Dangerous thunderstorms this afternoon and evening may be capable of producing severe wind gusts, a tornado, and heavy rain,' the alert reads. Severe wind gusting up to 110 km/h and an isolated tornado may appear this afternoon into the evening, the alert warns. Quebec will see a hot and humid weekend with a humidex of around 40 through Sunday, the alert reads. Areas in Quebec under thunderstorm watch include Amos, Dorval Lodge, Fort William-Shawville, La Sarre, Le Domaine, Lebel-sur-Quévillon, Malartic, Rapides-des-Joachims, Rouyn, Senneterre, Témiscaming, Val d'Or - Louvicourt and Ville-Marie. 'Late this afternoon and this evening, conditions will be favourable for the development of dangerous thunderstorms capable of producing strong wind gusts, large hail and heavy downpours,' the weather agency said. Residents of both provinces are advised to protect themselves from the effects of heat and thunderstorms. Air quality warnings The regions under air quality warnings include Manitoba, Northwest Territories, Ontario and Saskatchewan. Manitoba residents over the age of 65, pregnant women and young children are urged to avoid being outdoors due to the wildfire smoke in the area. 'Smoke is causing or expected to cause poor air quality and reduced visibility,' the alert reads. 'During heavy smoke conditions, everyone's health is at risk regardless of their age or health status.' Areas in Ontario and Saskatchewan are under similar air quality warnings due to wildfire smoke, which could persist through the weekend, alerts noted. Additionally, Ft. Liard Region including Nahanni Butte in Sambaa K'e in Northwest Territories have been issued air quality alerts from Environment Canada. 'Wildfires burning southwest of Sambaa Ke are causing locally poor air quality,' the alert said. 'Air quality and visibility due to wildfire smoke can fluctuate over short distances and can vary considerably from hour to hour.' Residents may experience mild symptoms such as eye, nose and throat irritations or headaches, the weather agency said. However, if anyone is experiencing fewer common symptoms include wheezing, chest pains or severe cough, they are asked to see medical attention immediately. Further information about protecting yourself from the health effects of extreme heat exposure are available on the Government's website. Information about experiencing wildfire smoke is available here.
