June is one of the warmer months of the year in Chicago, with average highs near 20.6°C and lows around 14.4°C (mean 17.5°C). It is a relatively wet time of year, averaging 101 mm of rainfall and 81% relative humidity across the period.
June is one of the warmer months of the year in Chicago. Across 45 years of records, the warmest June in Chicago was 2005 — when the month averaged 20.9°C — while the coldest was 1982 at 12.4°C. Typical June days reach 20.6°C with nights near 14.4°C. The long-term trend is warming, about 0.9°C per decade.
June is a relatively wet time of year in Chicago, averaging 101 mm of rainfall. The wettest June on record was 1993 with 233 mm, while the driest was 1991 at 32 mm.
Relative humidity in Chicago during June averages 81%. The most humid June was 1984 at 88%, and the least humid was 1988 at 67%.
June receives about 6.1 kWh/m²/day of solar energy in Chicago. The sunniest June was 2012 at 7.2 kWh/m²/day, and the cloudiest was 2015 at 5.3.
Average wind speed in Chicago during June is 3.1 m/s. The windiest June was 2024 at 3.7 m/s, while the calmest was 1995 at 2.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 15.9°C | 16.7°C | 17.7°C | 18.2°C | 19.7°C | +3.8°C |
| Avg High | 19.3°C | 19.8°C | 20.8°C | 21.2°C | 22.8°C | +3.5°C |
| Avg Low | 12.5°C | 13.6°C | 14.7°C | 15.3°C | 16.6°C | +4.1°C |
| Avg Rain | 82 mm | 113 mm | 90 mm | 121 mm | 92 mm | +10 mm |
June temperatures in Chicago have risen by about 4.5°C between 1981–1985 and 2021–2025.
June has ranged from a record low of 3.7°C (2003) to a record high of 30.7°C (2012).
Rainfall in June is a relatively wet time of year, averaging 101 mm, with a wettest year of 233 mm.
One of the best times to visit Chicago
June is one of the best times to visit Chicago. Expect days averaging 20.6°C and nights around 14.4°C (mean 17.5°C) — warmer than Chicago's yearly average — with higher rainfall (101 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 23.1°C | 20.0°C | 16.9°C | 30.1°C | 9.5°C | 95 mm | 81% | 3.1 m/s | 6.3 |
| 2024 | 23.3°C | 20.4°C | 17.4°C | 28.8°C | 12.0°C | 109 mm | 78% | 3.7 m/s | 6.3 |
| 2023 | 21.3°C | 18.3°C | 15.3°C | 28.0°C | 10.6°C | 47 mm | 74% | 3.1 m/s | 6.3 |
| 2022 | 22.7°C | 19.3°C | 16.0°C | 28.1°C | 11.5°C | 56 mm | 75% | 3.2 m/s | 6.6 |
| 2021 | 23.9°C | 20.8°C | 17.7°C | 27.7°C | 10.9°C | 158 mm | 77% | 3 m/s | 6 |
| 2020 | 22.2°C | 19.2°C | 16.2°C | 27.9°C | 10.6°C | 88 mm | 81% | 3 m/s | 6.6 |
| 2019 | 18.7°C | 15.7°C | 12.8°C | 25.0°C | 7.8°C | 113 mm | 86% | 3.1 m/s | 5.7 |
| 2018 | 21.1°C | 18.5°C | 15.9°C | 26.9°C | 10.0°C | 179 mm | 87% | 3.3 m/s | 5.7 |
| 2017 | 22.3°C | 19.2°C | 16.2°C | 26.6°C | 11.5°C | 101 mm | 78% | 3.5 m/s | 6.8 |
| 2016 | 22.9°C | 20.1°C | 17.2°C | 28.1°C | 12.5°C | 65 mm | 79% | 3.2 m/s | 6.5 |
| 2015 | 20.1°C | 16.8°C | 13.6°C | 25.3°C | 7.4°C | 148 mm | 84% | 3.1 m/s | 5.3 |
| 2014 | 20.9°C | 17.5°C | 14.2°C | 26.5°C | 8.9°C | 188 mm | 84% | 3.2 m/s | 5.9 |
| 2013 | 20.2°C | 17.6°C | 15.0°C | 25.6°C | 8.9°C | 117 mm | 85% | 3.2 m/s | 5.8 |
| 2012 | 23.8°C | 20.5°C | 17.2°C | 30.7°C | 10.1°C | 34 mm | 70% | 3.5 m/s | 7.2 |
| 2011 | 19.9°C | 16.9°C | 13.9°C | 24.6°C | 9.2°C | 101 mm | 86% | 3.1 m/s | 5.8 |
| 2010 | 22.1°C | 19.4°C | 16.7°C | 26.8°C | 12.9°C | 162 mm | 85% | 3.2 m/s | 5.9 |
| 2009 | 19.4°C | 16.4°C | 13.3°C | 28.9°C | 6.3°C | 146 mm | 85% | 2.9 m/s | 5.7 |
| 2008 | 20.8°C | 18.0°C | 15.1°C | 26.7°C | 9.9°C | 116 mm | 84% | 3.2 m/s | 6.1 |
| 2007 | 22.7°C | 20.0°C | 17.2°C | 29.0°C | 10.2°C | 74 mm | 77% | 3.2 m/s | 6.1 |
| 2006 | 20.6°C | 17.9°C | 15.2°C | 25.9°C | 11.0°C | 65 mm | 77% | 3.1 m/s | 6.3 |
| 2005 🔥 | 24.1°C | 20.9°C | 17.7°C | 30.4°C | 12.5°C | 41 mm | 77% | 3 m/s | 6.3 |
| 2004 | 19.9°C | 16.9°C | 13.9°C | 25.2°C | 8.3°C | 93 mm | 82% | 2.9 m/s | 6.2 |
| 2003 | 18.1°C | 14.7°C | 11.3°C | 25.7°C | 3.7°C | 41 mm | 78% | 2.8 m/s | 6.1 |
| 2002 | 21.1°C | 17.7°C | 14.3°C | 28.4°C | 7.3°C | 95 mm | 84% | 2.7 m/s | 5.9 |
| 2001 | 20.2°C | 17.2°C | 14.2°C | 26.1°C | 7.2°C | 79 mm | 80% | 2.8 m/s | 6 |
| 2000 | 20.6°C | 17.5°C | 14.4°C | 25.3°C | 10.0°C | 150 mm | 80% | 3.5 m/s | 5.8 |
| 1999 | 21.5°C | 18.9°C | 16.2°C | 26.1°C | 10.7°C | 109 mm | 80% | 2.8 m/s | 6 |
| 1998 | 21.4°C | 18.7°C | 16.0°C | 28.0°C | 8.8°C | 131 mm | 82% | 3 m/s | 5.8 |
| 1997 | 19.1°C | 15.7°C | 12.4°C | 25.7°C | 6.6°C | 109 mm | 83% | 2.8 m/s | 5.9 |
| 1996 | 18.3°C | 14.9°C | 11.5°C | 24.7°C | 6.9°C | 140 mm | 88% | 2.7 m/s | 5.4 |
| 1995 | 20.4°C | 17.3°C | 14.1°C | 26.0°C | 8.7°C | 60 mm | 82% | 2.4 m/s | 6 |
| 1994 | 19.1°C | 15.9°C | 12.6°C | 26.0°C | 6.3°C | 146 mm | 80% | 3 m/s | 6.3 |
| 1993 🌧️ | 18.1°C | 15.1°C | 12.1°C | 23.9°C | 4.9°C | 233 mm | 88% | 3.2 m/s | 5.5 |
| 1992 | 19.0°C | 15.8°C | 12.6°C | 26.1°C | 9.1°C | 46 mm | 74% | 2.8 m/s | 6.2 |
| 1991 | 21.8°C | 19.0°C | 16.3°C | 26.9°C | 11.5°C | 32 mm | 81% | 2.9 m/s | 6.5 |
| 1990 | 19.3°C | 15.8°C | 12.4°C | 25.0°C | 5.4°C | 119 mm | 85% | 3.5 m/s | 5.6 |
| 1989 | 19.4°C | 16.0°C | 12.7°C | 26.4°C | 9.0°C | 76 mm | 81% | 2.6 m/s | 5.9 |
| 1988 | 21.8°C | 17.8°C | 13.8°C | 30.0°C | 8.0°C | 34 mm | 67% | 3.6 m/s | 6.6 |
| 1987 | 22.1°C | 18.5°C | 15.0°C | 30.2°C | 10.2°C | 80 mm | 78% | 3 m/s | 6.3 |
| 1986 | 17.4°C | 13.8°C | 10.3°C | 22.9°C | 6.0°C | 122 mm | 87% | 3.1 m/s | 5.5 |
| 1985 | 18.0°C | 15.0°C | 11.9°C | 25.7°C | 7.1°C | 61 mm | 78% | 3.5 m/s | 5.7 |
| 1984 | 17.6°C | 14.3°C | 11.0°C | 21.4°C | 6.9°C | 88 mm | 88% | 3.4 m/s | 6.1 |
| 1983 | 19.7°C | 16.6°C | 13.4°C | 26.3°C | 8.9°C | 81 mm | 83% | 2.9 m/s | — |
| 1982 ❄️ | 16.1°C | 12.4°C | 8.7°C | 21.0°C | 5.3°C | 56 mm | 81% | 3 m/s | — |
| 1981 | 21.4°C | 18.3°C | 15.3°C | 25.9°C | 11.0°C | 143 mm | 81% | 3.5 m/s | — |
Actual recorded June data for each year, 1981–2025 — sourced from NASA POWER.
The average high in June is around 20.6°C with lows near 14.4°C (mean 17.5°C), based on 45 years of NASA POWER data.
June averages 101 mm of rainfall in Chicago, a relatively wet time of year. The wettest on record was 233 mm in 1993.
The hottest June reached 30.7°C in 2012. The coldest dipped to 3.7°C in 2003.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average June temperatures have risen by about 4.5°C. Daytime highs moved from 18.6°C to 22.9°C and overnight lows from 12.1°C to 16.7°C over the same span.
June is one of the warmer months of the year in Chicago and a relatively wet time of year, so plan for around 20.6°C daytime highs and 14.4°C at night.
Not quite — June is the 9th coolest month in Chicago, averaging 17.5°C.
For June in Chicago, pack light layers you can adjust through the day, with typical highs of 20.6°C and lows of 14.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in June averages 81% — quite humid.
Average wind speed in June is 3.1 m/s. The windiest June on record averaged 3.7 m/s (2024).
The wettest June on record was 1993 with 233 mm. On average, June sees 101 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Chicago behaves each June, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for June specifically, along with year-by-year records and how the month has changed over the decades.
