Chicago weather in July
Temperature, rain and sunshine in July: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in July
Excellent
Best time to visit: May – September
What is the weather like in Chicago in July?
In July, Chicago is warm: daytime highs average 26 °C, and even at night it stays warm at around 21 °C. The sun shines for around 9 hours a day. Rain is frequent, with about 11 rainy days and 89 mm in total. The air is often humid and muggy. All in all, July is an excellent month for a holiday in Chicago.
July compared
How the weather changes from June to August. Tap a month to open it.
More details for July
- Daylight
- 14 h 57 min05:28 – 20:25
- UV index
- 9 · very highclear sky, noon (estimate)All months
- Muggy days
- 16 daysdew point 18 °C or moreAll months
- Wind
- 18 km/haverage daily peakAll months
- Cloud cover
- 51 %on averageAll months
- Hot days
- 4 days30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snowAll months
- Time zone
- UTC−5America/Chicago
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %95 %
- Few rainy daysweight 30 %48 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in July
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Insect repellent
- Rain jacket or umbrella
Chicago in July: quick answers
Is Chicago hot in July?
Warm rather than hot: in July, daytime highs in Chicago average 26 °C and nights cool to about 21 °C. On about 4 days the thermometer climbs to 30 °C or more.
Does it rain much in Chicago in July?
Rain is frequent, with about 11 rainy days and 89 mm in total.
Chicago month by month
The whole year in ChicagoAll destinations: USAWhere to go in July
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences