Chicago weather in May
Monthly temperatures, rain, humidity, what to wear and what to pack — 2024–2025 historical average
Chicago May weather at a glance
In May, Chicago averages 14.7°C, with typical highs of 19.3°C and lows of 10.5°C. The historical average is 12 wet days and 74% humidity.
Chicago May temperature & humidity
Chicago May rain & wet days
Pack a compact umbrella. Keep an indoor stop available between outdoor activities.
What to wear in Chicago in May
T-shirts or long sleeves with one light outer layer should be comfortable. Showers are possible, so a compact umbrella is useful.
- DaytimeLong sleeves and a light jacket · average high 19.3°C
- Morning & eveningLong sleeves with a jacket or cardigan · average low 10.5°C
- FootwearComfortable walking shoes; quick-dry footwear for rainy days.
Packing essentials
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Chicago May sunrise & sunset times
2026 May · Local time (America/Chicago)
| Date | Sunrise | Sunset | Daylight |
|---|---|---|---|
| 2026-05-01 | 05:47 | 19:49 | 14h 3m |
| 2026-05-15 | 05:30 | 20:04 | 14h 34m |
| 2026-05-31 | 05:18 | 20:19 | 15h 0m |
For sunset photos, arrive before the listed sunset time. Clouds, mountains and buildings can change when the sun becomes visible or disappears.
Calculated for the city coordinates with daylight saving applied. SunCalc · tz-lookup
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Best months to visit Chicago
Bar height shows our simple weather-comfort score, not a safety rating; colour shows temperature.
May weather by year
Daily weather in 2025
Daily high and low temperatures; blue labels show precipitation
Frequently asked questions
What is Chicago weather like in May?
In May, Chicago averages 14.7°C, with typical highs of 19.3°C and lows of 10.5°C. The historical average is 12 wet days and 74% humidity. Our weather-comfort rating for this month is good.
Does it rain a lot in Chicago in May?
There are about 12 wet days in May. A compact umbrella is still useful.
What should I wear in Chicago in May?
T-shirts or long sleeves with one light outer layer should be comfortable. Showers are possible, so a compact umbrella is useful.
What are the best months to visit Chicago?
Recent weather data rates May, June, August, September among the more comfortable months.
Where can I check Chicago weather in May in real time?
Check local webcams for the view right now and a local weather service for today’s forecast. Monthly temperatures here are historical averages.
What time are sunrise and sunset in Chicago in May?
On 2026-05-15, calculated sunrise is 05:30 and sunset is 20:04 in local time (America/Chicago). Times vary by date and terrain.
Chicago weather by month
More Americas destinations in May
Open-Meteo (CC BY 4.0) · 2024–2025 historical data, aggregated and rounded by this site. Not a forecast or long-term climate normal. Calculation method and limitations