Spell of warm weather to go out with a bang in London, Ont.

A string of warm days is set to end as cooler temperatures return in time for the weekend in London, but not before a record-breaking high and the possibility of storms.

A severe thunderstorm warning was issued shortly after 4:30 p.m. Thursday for London, Parkhill, and Eastern Middlesex County.

Earlier in the day, a new high temperature record was set in London.

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Thursday’s temperature peaked at 18.5 C at 3 p.m., surpassing the previous record for March 11 of 16.7 C set in 2012.

The temperature has been soaring throughout the workweek, climbing from below zero on Sunday to 9.6 C on Monday, 10.3 C on Tuesday and 16.3 C on Wednesday.

The high will start to fall on Friday, however, with Environment Canada anticipating a high of 10 C before more seasonal temperatures return for the weekend.

Highs between 2 C and 6 C are expected from Saturday through to Wednesday.

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