Lillooet

Ashcroft, British Columbia hit 40.8 C (105 F) on Sept. 3, setting the hottest September temperature ever recorded in Canada. A regional weather observer called the late-season heat highly unusual and linked it to a blocking high-pressure system.

British Columbia set a new national September heat record with 40.8 C in Cache Creek, as wildfire smoke triggers widespread air-quality alerts. Multiple heat warnings remain in effect across the province.

Federal fisheries experts paint devastating picture of the challenges facing Pacific salmon and point to climate change as the main culprit.

The B.C. Centre for Disease Control recommends children and elderly stay indoors during lingering smoke from forest fires.

Warm temperatures prompting spring run-off combined with heavy rainfall in some areas caused devastating floods and mudslides in several parts of B.C.