Expect beaches to be very busy over the next few days as heatwave settles over the region.

Environment Canada has issued a heat warning for Northwestern Ontario.

Daytime highs in the region over the next couple of days are expected to be in the mid to high 30's, with very little relief overnight as lows are expected to be in the high teens and mid 20's.

The risks are greater for young children, pregnant women, older adults, people with chronic illnesses, and people working or exercising outdoors.

Residents are reminded to drink plenty of water, do their best to stay cool and check on older family, friends and neighbours to ensure they are staying safe.