Weather Forecast and Radar for Oak Brook, Illinois

Weather in Oak Brook, IL

Oak Brook, Illinois is situated in the Midwest, and experiences all four seasons.

In the winter months, the average temperature ranges from the low 20s to the mid-30s (Fahrenheit). Snowfall averages 18 inches a year and the area occasionally experiences snowstorms.

In the spring, the temperature ranges from the mid-30s to the mid-50s. Rainfall averages 33 inches a year and the area experiences thunderstorms.

In the summer, the temperature ranges from the mid-60s to the mid-80s. The area experiences occasional thunderstorms and the humidity level is high.

Finally, in the autumn, the temperature ranges from the mid-40s to the mid-60s. Rainfall averages 24 inches a year and the area experiences occasional thunderstorms.

Overall, the weather in Oak Brook, Illinois is mild and mild changes in temperature are to be expected throughout the year.

Fast Facts About Oak Brook, IL

As of 2020, the city population is 8085.

Major Cities Nearby Oak Brook, IL

This map shows the current & 7-day weather forecast, weather alerts, and weather radar for Oak Brook, Illinois.