Chicago Weather in May: Climate, Temperature & Travel Tips
Avg 14.3°C · 130mm rain — May is spring in Chicago.
- Avg high
- 18.6 °C
- Avg low
- 10.0 °C
- Avg
- 14.3 °C
- Precipitation
- 130 mm
Source: Open-Meteo Archive 2014–2023 · 10-year climate normals
Climate Overview
May in Chicago, United States brings spring conditions: average temperature 14.3°C, average high 18.6°C, average low 10.0°C. Monthly rainfall averages 130mm, making it a wet time of year.
Conditions are pleasant for most travel activities.
What to Pack
- Light jacket or fleece, long-sleeve shirts
- Closed shoes; layers for changing conditions
- Compact umbrella and waterproof jacket
Best Things to Do
- Walking tours and city exploration
- Parks and outdoor cafes
- Seasonal food and night markets (where applicable)
Pros and Cons of Visiting in May
Pros:
- Shoulder season often means smaller crowds and lower prices
Cons:
- Frequent rain — pack waterproof gear
Climate source: Open-Meteo Archive (2014–2023).
Colour = avg temperature · blue = cool · orange = warm
- 1 July 22.8°C
- 2 August 22.7°C
- 3 June 20.3°C
- 1 January -3.8°C
- 2 February -3.4°C
- 3 December 0.6°C
FAQ
01 What is the average temperature in Chicago in May? +
The average is 14.3°C, with a high of 19°C and a low of 10°C.
02 What is Chicago like to visit in May? +
It is spring in Chicago, which is cool — bring warm clothes.
03 Does it rain often in Chicago during May? +
Average rainfall is 130mm, which is high — expect frequent rain.
04 What should I pack for Chicago in May? +
Light jacket or fleece, long-sleeve shirts; Closed shoes; layers for changing conditions.
05 Is May a peak travel season for Chicago? +
It is closer to off-season, with more reasonable prices and fewer crowds.
06 Where does this climate data come from? +
Monthly averages computed from Open-Meteo Archive 2014–2023 daily observations.
- Sources
- Open-Meteo Archive 2014-2023
- Updated
- 2026-04-17