Those celebrating Saint-Jean in Montreal may need to gear up with umbrellas and wellies for metropolitan shows. However, eastern Quebec will see the most rainfall, particularly in the Sherbrooke area.
In Estrie, the umbrellas are put up for the national holiday, as 20 to 30 mm of rain is expected in the region. The outaouais should get just under 15 mm, especially in the Gatineau sector.
The weather remains uncertain across most of the province, with a risk of showers and thunderstorms expected in several regions including Montreal, the Capitale-Nationale and Saguenay-Lac-Saint-Jean.
On the north coast and in the Laurentians, the temperature will drop to 23 degrees, it will be cloudy and there is a risk of showers.
The residents of Bas-Saint-Laurent are spared the rain and can look forward to a summer temperature of 26 degrees.
A smog warning applies to the regions of Abitibi-Témiscamingue, Bas-Saint-Laurent and Saguenay-Lac-Saint-Jean. Poor air quality is normally expected to spread east and south of Quebec over the next few days.