Chicago weather by month › May
Chicago in May: weather and what to expect
It’s fine, but not the best. September is more pleasant.
May weather in Chicago
Daytime high71°F 22°C
Night low49°F 9°C
Rain4.5 in 114 mm
AirComfortable
SunSunny
In May, Chicago averages highs of 71°F (22°C) and lows of 49°F (9°C), with 4.5 in (114 mm) of rain. The air feels comfortable and the sun is sunny. 1991–2020 averages, not a forecast.
Pack: light layers, a sweater for evenings, a rain jacket or umbrella.
Places with the same weather in May
Match out of 100 for May, one city per country.
Jan · Feb · Mar · Apr · May · Jun · Jul · Aug · Sep · Oct · Nov · Dec