Ontario

Warm Conditions Give Way To Cooler Weather In Whitby

By

Emma Kelly
April 9, 2026 8:22 am

Residents in Whitby should prepare for a period of rapidly changing weather, as a brief spell of unseasonably warm air is expected to give way to cooler temperatures and rain through the weekend. According to Environment Canada, today’s forecast calls for a high of 17°C, which is 7 degrees above the typical seasonal high of 10°C for early April. While the day started with cloudy skies, residents can expect wind gusts reaching 50 km/h and a 60 percent chance of showers by this afternoon.

The mild conditions will be short-lived, with a noticeable cooldown expected on Friday. Temperatures are forecast to drop to a high of 8°C, with overnight lows dipping to minus 2°C. While the weekend will offer a brief return to calmer weather with a sunny high of 9°C on Saturday, the outlook for the coming week shows more unsettled conditions, including a return of rain by Tuesday.

Despite the warmer air today, those heading near the water should remain cautious. The water temperature in Lake Ontario remains at approximately 2-3°C, which is far too cold for swimming and consistent with late winter conditions. There are currently no weather alerts in effect for the area.

This variability comes after The Weather Network predicted a slower start to spring for the province, noting that colder-than-normal temperatures and potential for late-season winter weather might persist throughout the month. With precipitation in Whitby during early April typically averaging 4.30 mm, residents are encouraged to stay updated as local conditions fluctuate throughout the spring season.

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