Weather Forecast and Radar for Manhattan, Illinois

Weather in Manhattan, IL

Manhattan, Illinois, United States experiences a typical four-season climate with hot and humid summers, cold and snowy winters, and temperate springs and autumns.

In summer, temperatures average between 75 and 85 degrees Fahrenheit (24 to 29 degrees Celsius). July is typically the hottest month, with temperatures reaching the mid-90s Fahrenheit (mid-30s Celsius). During the summer, nights are usually warm with temperatures staying in the mid-60s Fahrenheit (mid-20s Celsius).

In winter, temperatures average between 20 and 30 degrees Fahrenheit (-7 to -1 degrees Celsius). January is typically the coldest month, with temperatures sometimes reaching as low as 0 degrees Fahrenheit (-18 degrees Celsius). Snowfall is common, averaging around 20 inches (51 cm) per year.

In spring, temperatures average between 40 and 50 degrees Fahrenheit (4 to 10 degrees Celsius). April is typically the rainiest month, with temperatures reaching the mid-50s Fahrenheit (10 to 15 degrees Celsius).

In autumn, temperatures average between 50 and 60 degrees Fahrenheit (10 to 15 degrees Celsius). October is typically the mildest month, with temperatures reaching the mid-60s Fahrenheit (mid-20s Celsius).

Overall, Manhattan experiences mild to moderate weather year-round.

Fast Facts About Manhattan, IL

As of 2020, the city population is 8218.

Major Cities Nearby Manhattan, IL

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