Residents in St. Thomas can look forward to a sunny and crisp start to the weekend before conditions change on Sunday. According to Environment Canada, Saturday will be bright with a high of 11°C, providing a clear day for outdoor activities.
The weather is expected to shift early Sunday morning as rain moves into the area. The wet conditions will persist through Sunday afternoon, accompanied by southeast winds with gusts reaching up to 50 km/h. There are currently no weather alerts in effect for the St. Thomas, Aylmer, and Eastern Elgin County region.
Despite the incoming rain, temperatures in St. Thomas are set to climb significantly as the new week begins. Forecasters are calling for a high of 17°C on Sunday, followed by a warm 23°C on Monday. The mild trend is expected to continue through mid-week, with highs of 18°C on Tuesday and 21°C on Wednesday, featuring a mix of sun and cloud with scattered showers.
The local weather data is observed at the London International Airport. Residents may notice more precise forecasting updates moving forward, as the federal department recently launched a new artificial intelligence-powered hybrid model on April 9, 2026, designed to improve the accuracy of weather predictions.
