Residents of Mississippi Mills should prepare for a significant shift in weather this weekend, as temperatures are expected to fluctuate sharply following a brief warm-up.
According to The Weather Network, current overcast conditions and fog patches will clear by Friday afternoon. Saturday is expected to reach a high of 23°C, though residents should prepare for rain, with about 10mm of precipitation in the forecast.
The weather will take a notably cooler turn on Sunday, with temperatures dropping to a high of 7°C. By Monday morning, overnight lows are expected to hit -5°C. This temperature drop brings a risk of frost, which may affect any tender plants that have already been moved outdoors. According to information provided by Garant Greens, the typical last spring frost in central Ontario occurs between early May and mid-June, making this late April cold snap a normal occurrence for the region.
The variable conditions are expected to continue into next week. Tuesday will likely bring mixed precipitation, including the possibility of snow-rain showers and a high of 6°C. Conditions are expected to improve mid-week, with mainly sunny skies forecast for Wednesday and Thursday, and daytime highs reaching approximately 11°C.
The Mississippi Valley Conservation Authority continues to monitor local river conditions, including the Mississippi River, and tracks weather forecasts to manage flood risks during the spring season. The current pattern reflects a broader trend of changeable, colder-than-normal spring weather across Ontario, as reported by The Weather Network in their seasonal outlook.