Waterloo Weather | The Waterloo Journal

Sunday, July 19, 2026Waterloo weather updating…

Active Alerts:Yellow Warning - Air Quality

Updating the Waterloo forecast…

Weather news & analysis

Latest weather stories

Breaking weather

Suspected tornado reported near Milton as severe storm crosses western GTA

Images showed a funnel extending toward the ground after Environment Canada warned that a storm east of Milton was possibly producing a tornado. An official damage survey remains pending.

July 18, 2026

Seasonal outlook

A warmer, longer and increasingly unsettled fall is likely for Southwestern Ontario

An unusually strong El Niño, the long-term warming trend and lingering Great Lakes heat all point toward a mild autumn—but periods of heavy rain, strong winds and an abrupt late-season turn remain possible.

July 18, 2026