forecast
detailed forecast
| Extented weather forecast for Cornwall Ontario and the Seaway Issued by Environment Canada at 1100 ET Mon Jul 20 2026 |
| Today: Sunny. Wind becoming southwest 30 km/h late this afternoon. High 26. Humidex 29. Uv index 8 or very high. Tonight: A few clouds. Wind southwest 30 km/h. Low 16. Tuesday: A mix of sun and cloud. Becoming cloudy near noon with showers. Risk of a thunderstorm in the afternoon. Wind south 30 km/h gusting to 50 becoming northwest 30 gusting to 50 in the afternoon then light later in the afternoon. High 26. Humidex 31. Uv index 8 or very high. Tuesday Night: Showers. Low 18. Wednesday: A mix of sun and cloud with 40 percent chance of showers. High 20. Wednesday Night: Cloudy periods with 30 percent chance of showers. Low 13. Thursday: Sunny. High 24. Thursday Night: Clear. Low 17. Friday: Sunny. High 26. Friday Night: Cloudy periods. Low 17. Saturday: A mix of sun and cloud. High 28. Saturday Night: Cloudy periods. Low 18. Sunday: Cloudy with 30 percent chance of showers. High 25. |
regional radar
news headlines
The death of Nolan Wells, a Black teenager whose body was located on an island off the Mississippi coast after . . . more
U.S. needs to find three to four million more barrels of oil per day over the next decade, and Canada . . . more
A Seattle raccoon with an unusually short body nicknamed Jimothy has become an internet sensation after a video of the . . . more
sports headlines
Saskatchewan Roughriders linebacker Jayden Dalke was driving the wrong way on the highway with alcohol and cannabis in his vehicle . . . more
Erica Wiebe’s first taste of the Commonwealth Games experience came back in 2014 in Glasgow. Now, 12 years later, the . . . more
CBC Sports will begin its coverage of the Commonwealth Games on Thursday, with the opening ceremony from Glasgow at 2:30 . . . more
The halftime show at the 2026 World Cup Final opened with Madonna singing, "Music makes the people come together." But . . . more
Ferran Torres' first goal of this year's World Cup was the goal of his life, and it put Spain back . . . more
uv forecast
weather alert
air quality health index
explore the seaway city
discover the counties of sdg
