The beginning of this week will somewhat echo the end of last week, with temperatures starting off on the cooler side, then ramping up before the passage of a cold front that could also bring some thunderstorms. After this cold front passes, temperatures take a dive closer to normal levels.

Rest of today – increasing clouds will cap temperatures in the low-50s.

Tuesday – warmer but with increasing chances for rain during the day. High temperatures in the upper-50s.

Wednesday – during the early morning hours, a warm front associated with a low pressure center moving across southern Ontario will push through. This will set the stage for possibly record-breaking warmth during the day. Southwest flow will allow temperatures to steadily climb into the upper-60s and possibly over 70°F. Later in the day, a trailing cold front will make its approach. This will serve as a trigger for showers and thunderstorms to develop late in the day and into the early overnight hours. Some of the storms could approach marginally severe criteria.

Thursday – following the cold front passing through, winds shift to the northwest. This will result in much cooler temperatures dropping through the day into the upper-40s.

Cooler Weather Ahead

Looking ahead to the mid-month period, it does appear we may see some cooler than normal temperatures prior to the formal onset of spring.