Weather Forecast and Radar for Wilmington, Illinois

Weather in Wilmington, IL

Wilmington, Illinois has a humid continental climate, with warm and humid summers and cold, snowy winters.

In the summer, temperatures typically range from the mid-70s to the mid-80s Fahrenheit (22-30°C). June and July are usually the hottest months, with temperatures reaching the high 80s to low 90s Fahrenheit (32-34°C). Humidity levels can be high during this time, making it feel even hotter.

In the winter, temperatures range from the low 20s to the mid-30s Fahrenheit (-6 to 2°C). January is typically the coldest month, with temperatures dropping below 20°F (-7°C) on some occasions. Snowfall is common, with an average of 24 inches (61 cm) per year.

Spring and fall are pleasant, with temperatures ranging from the high 50s to low 70s Fahrenheit (14-21°C). Rainfall is moderate during these times, with occasional thunderstorms.

Fast Facts About Wilmington, IL

As of 2020, the city population is 5883.

Major Cities Nearby Wilmington, IL

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