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Environment Canada's Flisfeder said there remains little rain in sight.

"Unless things change drastically, it's going to be another deficit of 50 to 75 per cent in the month of August."

He said there are chances there will be "spotty showers" on the weekend and next week - but no more than 10 mm, and only in some areas.

"The amounts that are possible are not really that significant, especially given how dry it has been."

He said the forecast is, as always, subject to change, but continuing dry conditions are the current prediction.

Why has there been so little rain?

Flisfeder said "every summer is different" and there did not appear to be one particular factor causing such a dry season.

"It's just how the atmosphere decided to set up for this summer," Flisfeder said.

Southern Ontario has, in general, seen mainly high-pressure systems, he said. That is the main reason for dry conditions, especially in southeastern Ontario, he said: low-pressure systems have lacked the strength to dislodge high-pressure ones.

"One, it's been very hot, which dries out the lower atmosphere, and two, it suppresses any kind of rainfall from being able to make it through the area, other than thunderstorm activity."

Environment Canada's fall outlook is due to be released in September.