Residents in Milton, Ontario, should prepare for a significant shift in weather starting Tuesday, March 10, 2026, as a warm start to the week transitions into rain and a sharp drop in temperature. This change follows a sunny start to the month, with conditions expected to turn more unsettled and cooler by the middle of the week.
According to Environment Canada, the week begins with a mild and mainly sunny Monday, March 9, 2026, where temperatures are expected to reach a high of 13°C. This warm spell will be short-lived, as Tuesday will bring a 30 per cent chance of showers during the day and a high of 12°C, with more consistent rain showers developing overnight.
While Wednesday, March 11, 2026, will see a daytime high of 10°C, the temperature is forecast to plunge significantly to a low of -5°C by Wednesday night. This marks a major shift from the double-digit highs seen earlier in the week as cooler air moves back into the region.
The sudden cooling trend also brings a 40 per cent chance of flurries or rain showers on Wednesday night. These changing conditions are a return toward seasonal norms for this time of year, as local climate averages typically see highs of 3°C and lows of -7°C during early March.
Residents are advised to be mindful of changing road conditions as temperatures drop below the freezing mark following the rainfall. The transition from rain to potential flurries by mid-week could lead to slippery surfaces for drivers and pedestrians throughout the community.