6765558901_fe9e5d4776_k
Current conditions
Cornwall skaters at the Optimist Park Skatepark
Shadow

forecast

detailed forecast

Extented weather forecast for Cornwall Ontario and the Seaway
Issued by Environment Canada at 1530 ET Sun Jul 12 2026
Tonight: Clear. Local smoke. Low 15.
Monday: Sunny in the morning and early in the afternoon then a mix of sun and cloud with 30 percent chance of showers in the afternoon. Risk of thunderstorms in the afternoon. Local smoke in the morning. Wind becoming southwest 30 km/h gusting to 50 in the morning. High 30. Humidex 34. Uv index 8 or very high.
Monday Night: Mainly cloudy. Clearing near midnight. Wind west 30 km/h gusting to 50 becoming light in the evening. Wind becoming southwest 30 before morning. Low 21.
Tuesday: Sunny. High 33.
Tuesday Night: Cloudy periods with 30 percent chance of showers. Low 21.
Wednesday: Sunny. High 29.
Wednesday Night: Clear. Low 15.
Thursday: A mix of sun and cloud with 30 percent chance of showers. High 28.
Thursday Night: Clear. Low 14.
Friday: A mix of sun and cloud. High 26.
Friday Night: Cloudy periods. Low 15.
Saturday: A mix of sun and cloud. High 25.

regional radar

Cornwall
🌧 Rain Snow 🧊 Ice 🌨 Mix

news headlines

U.S. Republican Senator Lindsey Graham dead at 71

Lindsey Graham, 71, was a prominent Republican ​senator from South Carolina. Earlier in ​his career, he was a vocal critic . . . more

Hydrogen vs. batteries: Which is winning the race to electrify heavy trucks?

Hydrogen has long been touted as the solution to electrifying and decarbonizing heavy vehicles, such as long-haul trucks. But now, . . . more

Several structures damaged after tornado passes through part of central Alberta hamlet

In a social media post on Sunday, the County of Vermilion River said no injuries had been reported to officials, . . . more

I was worried about the what-ifs. A daredevil stunt in my 50s helped me overcome my fears

As Nita Knapp faced her fear of being seriously hurt or worse on a quad ride up a steep hill, . . . more

sports headlines

Canada's women's volleyball team advances to VNL Finals for 1st time

Canada's women's volleyball team secured a spot in the Volleyball Nations League Finals for the first time on Sunday with . . . more

Sinner beats Zverev to repeat as Wimbledon champion, claim 5th Grand Slam title

Top-ranked Jannik Sinner beat Alexander Zverev 6-7 (7), 7-6 (2), 6-3, 6-4 Sunday for his second consecutive title at the . . . more

Canada's Gabriela Dabrowski return to Wimbledon doubles final comes up short

Kristina Mladenovic won a seventh career Grand Slam women's doubles title by teaming up with Guo Hanyu to defeat Canada's . . . more

Canadian paddlers Jensen, Hennessy double up on hardware at World Cup in Montreal

Canada's Brianna Hennessy and Sophia Jensen each paddled to silver on home waters Sunday at the canoe sprint and Para . . . more

Canada's Brooke Henderson edged in playoff at Evian Championship

Haeran Ryu birdied the first hole of a playoff with Brooke Henderson to win the Evian Championship on Sunday for . . . more

this day in history

On July 12th

explore the seaway city

Explore the Seaway City

discover the counties of sdg

Discover the Counties of SDG

Quick Links