Home › Weather › Weather In Hamilton, Ontario Tomorrow
Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Toronto Post Weather Desk. Data from Environment and Climate Change Canada and other national met services via Open-Meteo.
Tomorrow in Hamilton, Ontario, expect a high near the value shown in the live forecast above and a low around 2°C, with a 60% chance of rain showers in the afternoon. This marks a typical spring transition, cooling slightly from today’s milder conditions.
What will the temperatures feel like?
Actual highs will align with the live forecast above, but wind chill in the morning may make it feel 2–3 degrees cooler. Overnight lows near 2°C will be damp, so a light jacket and rain gear are advised.
Is rain likely and when?
Scattered showers are most probable between 2 p.m. and 6 p.m., delivering 2–5 millimetres of precipitation. Morning conditions will remain mostly cloudy, with a slight break around noon before the showers develop.
Will it be foggy in the morning?
Low cloud and light drizzle may reduce visibility to under 2 kilometres before 9 a.m., but fog is unlikely to be dense enough for a warning.
Should I expect any thunderstorms?
No. The rain will be steady and moderate from a passing low-pressure system; lightning is not forecast for Hamilton tomorrow.
How does this compare to seasonal norms?
Hamilton’s average high in early May is about 16°C. A 10°C high is well below normal, driven by a cooler air mass settling over southern Ontario.
Sources
For broader conditions across Canada, visit our Canada weather hub. See how Hamilton compares to Toronto Weather or check for any active weather warnings.