Environment Canada has issued a weather advisory for Grey County, Northern Wellington, Southern Bruce, Huron and Perth counties.
The weather service predicts between 15-25 mm of rain Wednesday night and early Thursday.
The significant rainfall is approaching from the central states, and will spread through southern Ontario from west to east later this evening, before tapering off near dawn.
Fog patches are also expected overnight, which will lead to reduced visibility.
Environment Canada has ended a yellow rainfall warning for parts of Ontario.
Hanover Police Service arrested a trespasser and ended up seizing drugs from the accused after an incident on July 30.
The Jays opened their home series against the Cardinals with a win off another Dylan Cease gem.
Nine young volunteers aged 11 to 17 spent three days exploring and protecting the Lake Huron coastline during the Coastal Conservation Youth Corps' inaugural program in Grand Bend from July 21 to 23.
An no-swim advisory has been issued for Kelso Beach at Nawash Park heading into the long weekend
Wheat finished lower to end the week.
