Climate averages 1991–2020
Chicago weather
in June.
A warm, wet month: the 3rd warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
June is a warm month in Chicago: daytime highs average 24.6°C and nights cool to about 17.2°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 102 mm of rain on roughly 12 days, which makes June a wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 15 h 10 min on an average June day.
The nearest other city in this atlas is Cicero (9 km away). In June its highs average 25.4°C, 0.8°C warmer than Chicago, with 102 mm of rain.
Among the 498 cities listed in the United States, Chicago ranks joint 414th of 498 for the warmest June highs and joint 344th of 498 for the driest June (rainfall, lowest first). The mean June high of those 498 cities is 27.9°C; Chicago is 3.3°C cooler than that mean.
From June to July, average highs rise by 2.7°C to 27.3°C, and monthly rainfall falls from 102 mm to 92 mm.
The annual picture
June in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Chicago climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -0.7°C-7.4°C | -7.4°C | 62 | 9.1 | 9.510 h |
| February | 0.9°C-6.5°C | -6.5°C | 54 | 7.6 | 10.611 h |
| March | 6.0°C-1.6°C | -1.6°C | 71 | 10.3 | 11.912 h |
| April | 12.3°C4.4°C | 4.4°C | 114 | 12.4 | 13.313 h |
| May | 18.7°C10.9°C | 10.9°C | 110 | 12.4 | 14.515 h |
| June, selected | 24.6°C17.2°C | 17.2°C | 102 | 12.1 | 15.215 h |
| July | 27.3°C20.2°C | 20.2°C | 92 | 11.5 | 14.915 h |
| August | 26.4°C19.7°C | 19.7°C | 95 | 10.9 | 13.914 h |
| September | 22.7°C15.8°C | 15.8°C | 75 | 8.8 | 12.513 h |
| October | 15.9°C9.2°C | 9.2°C | 85 | 9.5 | 11.111 h |
| November | 8.4°C2.4°C | 2.4°C | 72 | 9.0 | 9.910 h |
| December | 2.2°C-3.5°C | -3.5°C | 61 | 8.7 | 9.29 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
June in nearby cities
- Cicero in JuneUnited States · 9 kmHigh 25.4°C · Low 16.8°C · 102 mm rain
- Evanston in JuneUnited States · 22 kmHigh 23.8°C · Low 17.5°C · 92 mm rain
- Hammond in JuneUnited States · 32 kmHigh 25.0°C · Low 17.5°C · 102 mm rain
- Arlington Heights in JuneUnited States · 38 kmHigh 24.9°C · Low 16.6°C · 99 mm rain
- Gary in JuneUnited States · 38 kmHigh 24.8°C · Low 17.5°C · 102 mm rain
- Bolingbrook in JuneUnited States · 39 kmHigh 25.7°C · Low 16.2°C · 106 mm rain
- Schaumburg in JuneUnited States · 41 kmHigh 25.5°C · Low 16.0°C · 99 mm rain
- Naperville in JuneUnited States · 42 kmHigh 25.6°C · Low 16.2°C · 108 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Chicago) is explained once on the Chicago year overview and on the Sources, method and limits page.
Cicero lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.