Northwestern Ontario Weather for August 31 to September 2, 2026

August 31, 2026: Northwestern Ontario Three-Day Forecast — Stormy Monday, Gusty Tuesday, Quieter Wednesday
NORTHWESTERN ONTARIO – WEATHER – Monday, August 31, 2026 – Northwestern Ontario is closing out August with showers and thunderstorms moving across much of the region. Rainfall totals of 10 to 20 millimetres are possible in several communities before precipitation tapers later Monday.
A wind shift follows the rain. Tuesday will bring widespread west winds gusting to 5