forecast
detailed forecast
| Extented weather forecast for Cornwall Ontario and the Seaway Issued by Environment Canada at 0500 ET Tue Sep 8 2026 |
| Today: Mainly cloudy. 60 percent chance of showers this morning. Clearing this afternoon. High 23. Humidex 28. Uv index 5 or moderate. Tonight: Clear. Increasing cloudiness after midnight. Low 16. Wednesday: Cloudy. Showers beginning in the morning. Risk of a thunderstorm in the afternoon. Wind becoming south 20 km/h gusting to 40 early in the afternoon. High 22. Humidex 29. Uv index 3 or moderate. Wednesday Night: Cloudy with 60 percent chance of showers. Low 18. Thursday: A mix of sun and cloud with 40 percent chance of showers. High 23. Thursday Night: Cloudy periods with 30 percent chance of showers. Low 9. Friday: Sunny. High 22. Friday Night: Clear. Low 11. Saturday: Sunny. High 25. Saturday Night: Cloudy periods with 30 percent chance of showers. Low 15. Sunday: A mix of sun and cloud with 30 percent chance of showers. High 24. Sunday Night: Cloudy with 30 percent chance of showers. Low 13. Monday: Cloudy with 40 percent chance of showers. High 20. |
regional radar
news headlines
Former prime minister Jean Chrétien tells CBC News chief correspondent Adrienne Arsenault that Canada made the right move with counter-tariffs . . . more
Thieves stole three paintings from the Renoir Museum on the French Riviera early on Tuesday, the local mayor said. . . . more
The growing world of "actual play" is taking tabletop role-playing games from living rooms and online streaming to sold-out theatres. . . . more
sports headlines
Canada's Gabriela Dabrowski and Brazilian partner Luisa Stefani advanced to the quarterfinals in women's doubles action at the U.S. Open . . . more
Olympic champion sprinter Noah Lyles shut down his season because of injury and will not compete for the $150,000 US . . . more
The helicopter search for Canadian mountain runner Kalie McCrystal, who was last seen on Tuesday above the Jean-Antoine Carrel hut . . . more
Military Time overtook Brachetto just before the wire to claim the $500,000 Prince of Wales Stakes on Monday in Fort . . . more
Hosts Aaron Brown and Perdita Felicien break down the impressive performances from Oblique Seville and Melissa Jefferson-Wooden heading into the . . . more
air quality health index
uv forecast
weather alert
explore the seaway city
discover the counties of sdg
