Cook County (Chicago)
June
Weather in Cook County, Illinois for June 2026
Your guide to Cook County weather in June - trends and predictions
The forecast for the upcoming days in Cook County predicts a temperature of 27.8 °C, which is slightly above the historical average.
In general, the average temperature in Cook County at the beginning of June is 24.4 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 25.6 °C by the end of June.
Cook County experiences heavy rainfall in June, with over 20 rainy days and an average total precipitation 183.3 mm.
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Temperatures
Rain 🌧️
More
9
Dry days
21
Rainy days
0
Snow days
24°/17°
Temperatures
19 km/h
Avg max wind
70 %
Avg humidity
Cook County Weather June
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Temperatures trend during June in Cook County
See the weather trend as well as the moving average line
June weather in Cook County 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 | 28° /12° | 0 mm | 8.8 | |
| Jun. 4 | Sunny | 27° /15° | 0 mm | 9.2 | |
| Jun. 5 |  Patchy rain possible | 26° /20° | 2.9 mm | 9.1 | |
| Jun. 6 | Patchy rain possible | 26° /16° | 2.3 mm | 7.6 | |
| Jun. 7 | Patchy rain possible | 22° /14° | 0.2 mm | 0.5 | |
| Jun. 8 | Patchy rain possible | 25° /17° | 3.8 mm | 4 | |
| Jun. 9 | Patchy rain possible | 25° /20° | 0.5 mm | 5 | |
| Jun. 10 |  Moderate rain | 29° /20° | 6 mm | 5 | |
| Jun. 11 | Patchy rain possible | 33° /23° | 0.7 mm | 6 | |
| Jun. 12 | Sunny | 32° /24° | 0 mm | 7 | |
| Jun. 13 | Sunny | 30° /24° | 0 mm | 7 | |
| Jun. 14 | Patchy rain possible | 32° /24° | 0.3 mm | 6 | |
| Jun. 15 | Patchy rain possible | 24° /18° | 0.5 mm | 5 | |
| Jun. 16 | Patchy rain possible | 30° /18° | 1.7 mm | 5 | |
| Jun. 17 | Sunny | 27° /17° | 24 mm | 7 | |
| Jun. 18 |  Moderate or heavy rain shower | 25° /19° | 17.9 mm | 6 | |
| Jun. 19 | Patchy rain possible | 26° /17° | 0.7 mm | 6 | |
| Jun. 20 | Moderate or heavy rain shower | 26° /17° | 3.4 mm | 6 | |
| Jun. 21 | Sunny | 28° /17° | 0.6 mm | 7 | |
| Jun. 22 | Partly cloudy | 27° /20° | 3.4 mm | 7 | |
| Jun. 23 | Sunny | 27° /19° | 2 mm | 6 | |
| Jun. 24 |  Heavy rain at times | 28° /18° | 3.1 mm | 6 | |
| Jun. 25 | Moderate or heavy rain shower | 25° /19° | 42.2 mm | 6 | |
| Jun. 26 | Patchy rain possible | 26° /18° | 13.8 mm | 6 | |
| Jun. 27 | Patchy rain possible | 23° /16° | 10.9 mm | 5 | |
| Jun. 28 | Moderate or heavy rain shower | 25° /17° | 5.3 mm | 6 | |
| Jun. 29 | Moderate or heavy rain shower | 27° /19° | 2.6 mm | 6 | |
| Jun. 30 | Moderate or heavy rain shower | 25° /19° | 7.2 mm | 6 | |
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Important Notice
Our weather forecast for Cook County 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 Cook County forecast closer to your planned date for the most up-to-date weather information.
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Cook County in June - FAQ
What are the expected maximum and minimum temperatures in Cook County 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 Cook County during June?
Significant rainfall exceeding 183.3 mm is expected in Cook County during June, occurring over more than 21 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Cook County during June?
The average wind speed in Cook County during June is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
June rainfall patterns in Cook County
Explore the daily rainfall trends and prepare for Cook Countys June weather 💧
Typically, Cook County has 21 rainy days in June with a total of 183.3 mm of rainfall.
UV exposure in Cook County during June
Stay informed about UV levels for safe outdoor activities throughout the month of June ☀️
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Where is Cook County?Get accurate weather forecasts for Cook County, located at latitude 41.85 and longitude -87.65. Stay updated with localized weather information tailored for Cook County.
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