Illinois (Chicago)
June
Weather in Illinois for June 2026
Your guide to Illinois weather in June - trends and predictions
Hydrologic Outlook - See hour by hour.
Until now, June 2026 in Illinois has been nearly identical to the historical average, with a temperature of 22.7 °F (showing only a slight deviation of 0 °F).
The forecast for the next days in Illinois predicts temperatures to be around 24 °F, close to the historical average.
In general, the average temperature in Illinois at the beginning of June is 21.7 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 25.1 °F by the end of June.
Illinois experiences heavy rainfall in June, with over 20 rainy days and an average total precipitation 183.3 mm.
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Temperatures
Rain 🌧️
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9
Dry days
21
Rainy days
0
Snow days
24°/17°
Temperatures
19 km/h
Avg max wind
70 %
Avg humidity
Illinois Weather June
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What’s the Weather Like in Illinois This June?
Discover the average temperatures and weather trends across Illinois’s cities this June.
Temperatures trend during June in Illinois
See the weather trend as well as the moving average line
June weather in Illinois day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Jun. 1 |  Partly cloudy | 20° /12° | 2.3 mm | 6 | |
| Jun. 2 | Partly cloudy | 22° /14° | 0.1 mm | 6 | |
| Jun. 3 |  Sunny | 24° /15° | 1.4 mm | 7 | |
| Jun. 4 | Sunny | 23° /16° | 10.5 mm | 6 | |
| Jun. 5 | Sunny | 22° /16° | 4.3 mm | 6 | |
| Jun. 6 |  Moderate or heavy rain shower | 21° /15° | 6.2 mm | 6 | |
| Jun. 7 | Partly cloudy | 20° /15° | 2.4 mm | 6 | |
| Jun. 8 | Moderate or heavy rain shower | 21° /15° | 8.2 mm | 5 | |
| Jun. 9 | Partly cloudy | 23° /15° | 1.2 mm | 5 | |
| Jun. 10 | Partly cloudy | 22° /15° | 1.5 mm | 6 | |
| Jun. 11 |  Overcast | 24° /15° | 7.6 mm | 6 | |
| Jun. 12 | Overcast | 22° /14° | 0.1 mm | 6 | |
| Jun. 13 | Moderate or heavy rain shower | 24° /16° | 9.7 mm | 7 | |
| Jun. 14 | Sunny | 22° /15° | 2.5 mm | 6 | |
| Jun. 15 | Sunny | 24° /16° | 0 mm | 7 | |
| Jun. 16 | Sunny | 24° /16° | 1.8 mm | 7 | |
| Jun. 17 | Sunny | 26° /16° | 23 mm | 8 | |
| Jun. 18 | Moderate or heavy rain shower | 24° /18° | 15 mm | 7 | |
| Jun. 19 |  Patchy rain possible | 25° /17° | 0.6 mm | 7 | |
| Jun. 20 | Sunny | 26° /15° | 0 mm | 9.1 | |
| Jun. 21 |  Heavy rain | 19° /15° | 32.4 mm | 3.3 | |
| Jun. 22 | Partly cloudy | 19° /15° | 0.1 mm | 8.6 | |
| Jun. 23 | Sunny | 21° /15° | 0 mm | 6.8 | |
| Jun. 24 | Patchy rain possible | 25° /15° | 3.4 mm | 0.6 | |
| Jun. 25 | Patchy rain possible | 26° /17° | 0.3 mm | 5 | |
| Jun. 26 | Sunny | 23° /16° | 0 mm | 5 | |
| Jun. 27 |  Moderate rain | 27° /16° | 6.1 mm | 4 | |
| Jun. 28 | Patchy rain possible | 22° /16° | 1.2 mm | 4 | |
| Jun. 29 | Moderate rain | 27° /20° | 19.5 mm | 5 | |
| Jun. 30 | Heavy rain | 26° /20° | 36.7 mm | 5 | |
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Important Notice
Our weather forecast for Illinois in June is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Illinois forecast closer to your planned date for the most up-to-date weather information.
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Illinois in June - FAQ
What are the expected maximum and minimum temperatures in Illinois during June?
During June, expect a variety of temperatures with highs around 24° and lows near 17°, suitable for diverse activities and preferences.
How much rainfall should be expected in Illinois during June?
Significant rainfall exceeding 183.3 mm is expected in Illinois during June, occurring over more than 21 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Illinois during June?
The average wind speed in Illinois during June is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
June rainfall patterns in Illinois
Explore the daily rainfall trends and prepare for Illinoiss June weather 💧
Typically, Illinois has 21 rainy days in June with a total of 183.3 mm of rainfall.
UV exposure in Illinois during June
Stay informed about UV levels for safe outdoor activities throughout the month of June ☀️
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