Bolingbrook (IL) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Bolingbrook.
Climate overview of Bolingbrook
Bolingbrook, Illinois, United States of America, experiences significant temperature variation throughout the year. Summers bring daytime highs of 29°C (84°F) in July, while winters cool to 0°C (32°F) in January.
Rain/snowfall is high, totalling around 1062 mm (42 in) per year. June is the wettest month and January the driest. The city also experiences warm summers and very cold winters. The most sunshine falls in July, with an average of 10.6 hours of daily sunshine.
Bolingbrook Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Bolingbrook - and find the best time to visit.
Monthly Temperature in Bolingbrook
Depending on the time of the year, temperatures range from comfortable to very cold in Bolingbrook. Average maximum daytime temperatures range from a comfortable 29°C (84°F) in July, the warmest time of the year, to a very cold 0°C (32°F) during cooler months like January.
At night, you can expect temperatures ranging from 18°C (64°F) in July to around -9°C (16°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Bolingbrook
Bolingbrook has a relatively rain/snowy climate with high precipitation levels, averaging 1062 mm (42 in) of rain/snowfall annually. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, June it receives high rainfall, averaging 129 mm (5.1 in) of precipitation, recorded across 15 rainy days. In contrast, the driest month January brings less snowfall, with 54 mm (2.1 in) over 11 snowy days. For more details, please visit our Bolingbrook Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Bolingbrook
Seasonal changes in sunshine hours are quite dramatic in Bolingbrook. While July receives considerable daily sunshine with up to 10.6 hours, December marks the darkest time of the year, where sunshine is scarce with only 3.6 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Bolingbrook by Month
The relative humidity is high throughout the year in Bolingbrook.
The city experiences its highest humidity in December, reaching 76%. In May, the humidity drops to its lowest level at 64%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Bolingbrook
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: September
- Warmest weather: July and August
- Most sunshine: June and July
- Fewest rainy days: February, March, September and November
- Seasonal pattern: Warm summers and very cold winters
- Coldest conditions: January, with freezing nights around -9°C (16°F).
Frequently asked questions about the climate in Bolingbrook
What is the best time to visit Bolingbrook?
September typically offers the most optimal weather in Bolingbrook. In contrast, January, February, March, November and December tend to have less optimal conditions. Bolingbrook has warm summers and very cold winters.
What temperatures can I expect in Bolingbrook?
Daytime highs range from 0°C (32°F) in January to 29°C (84°F) in July. Nighttime lows range from -9°C (16°F) to 18°C (64°F). Temperatures vary considerably through the year.
How much rain does Bolingbrook get?
Annual rainfall is around 1062 mm (42 in). June is the wettest month with 129 mm (5.1 in), while January is the driest with 54 mm (2.1 in).
How sunny is Bolingbrook?
Bolingbrook receives around 2,509 hours of sunshine per year. July is the sunniest month with 319 hours, while December is the cloudiest with just 107 hours. Overall, Bolingbrook enjoys abundant sunshine.
Bolingbrook 3-Day Forecast
Bolingbrook (IL) 3-Day Forecast
Bolingbrook on the map
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