Grimsby's outlook: warmest day near 82° (Tuesday), coldest night about 57° (Thursday). Roughly 0.34 in of rain falls over the period, with Wednesday the most likely wet day (80%). Hold onto the patio furniture Wednesday: gusts could hit 32 mph. No watches or warnings are active for the area right now. Right now Grimsby is running about 22° warmer than London. Longer view: four full seasons with serious winter and real summer heat.
Grimsby, ON · Elev 289 ft · 43.20°N, 79.57°W · Ontario · Forecast computed for these exact coordinates