Bourbonnais (IL) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Bourbonnais.
Climate overview of Bourbonnais
Temperatures in Bourbonnais, Illinois, United States of America, vary greatly throughout the year. July is the hottest month at 29°C (84°F), while January is the coldest at 0°C (32°F).
The city has a wet climate, receiving around 1084 mm (43 in) of rain/snowfall per year. Despite the high annual total, it has warm summers and very cold winters. June is the wettest month.
Bourbonnais Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Bourbonnais - and find the best time to visit.
Monthly Temperature in Bourbonnais
The climate in Bourbonnais is known for significant temperature differences throughout the year, making the weather dynamic. On average, daytime temperatures range from a comfortable 29°C (84°F) in July to a very cold 0°C (32°F) in January.
Nighttime temperatures range from 18°C (64°F) in July to -9°C (16°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Bourbonnais
Bourbonnais has a notably wet climate with abundant precipitation, recording 1084 mm (43 in) of rain/snowfall per year. The seasons in Bourbonnais bring significant changes in precipitation. The wettest month, June, receives high rainfall, with an average of 157 mm (6.2 in) of precipitation. This rainfall is distributed across 13 rainy days.
In contrast, the driest month, February, experiences much less snow/rainfall, totaling 52 mm (2 in) over 10 snowy/rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Bourbonnais Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Bourbonnais
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: July and September
- Warmest weather: June, July and August
- Fewest rainy days: February, August, 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 Bourbonnais
What is the best time to visit Bourbonnais?
July and September typically offer the most optimal weather in Bourbonnais. In contrast, January, February, March, November and December tend to have less optimal conditions. Bourbonnais has warm summers and very cold winters.
What temperatures can I expect in Bourbonnais?
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 Bourbonnais get?
Annual rainfall is around 1084 mm (43 in). June is the wettest month with 157 mm (6.2 in), while February is the driest with 52 mm (2 in).
Bourbonnais 3-Day Forecast
Bourbonnais on the map
Bourbonnais is highlighted - select any city to see its climate.
Popular this month
Where to go in August - average daytime high across popular destinations.
Kissimmee
33°C (91°F) Orlando33°C (91°F) Miami Beach32°C (90°F) Destin32°C (90°F) New York City
29°C (84°F) Big Bear Lake
27°C (81°F) Los Angeles
24°C (75°F) San Francisco22°C (72°F) 
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
The 10 most alternative cities in the United States
Discover the top 10 fun and alternative U.S. cities rich in art, culture, and adventure. From Portland's hippy charm to Sedona's stunning landscapes.
Sedona: Explore Majestic Red Rock Landscapes
A picturesque artists' town surrounded by red rocks and known for its spirituality, vortex energy, and stunning hikes like Cathedral Rock.
10 most idyllic villages to visit in the United States
Discover 10 idyllic villages in the USA, from California to Vermont. Explore their unique charm, rich history, stunning nature, and vibrant arts scenes.