Weather Forecast and Radar for Pontiac, Illinois

Weather in Pontiac, IL

Pontiac, Illinois enjoys a humid continental climate with four distinct seasons. Summers are hot and humid, with average high temperatures in the 80s and low temperatures in the 60s. July is the hottest month with average highs in the mid to upper 80s and lows in the mid to upper 60s.

Winter temperatures in Pontiac are cold, with average high temperatures in the 20s and low temperatures in the single digits. January is the coldest month with average highs in the mid to upper 20s and lows in the single digits. Snowfall averages around 19 inches per year.

Spring and fall are mild and variable. Average high temperatures in the spring range from the mid 50s to the lower 70s, while average lows range from the upper 30s to the mid 50s. Average high temperatures in the fall range from the mid 50s to the mid 70s, while average lows range from the mid 30s to the lower 50s. Rainfall is plentiful throughout the year, with an annual average of about 40 inches.

Fast Facts About Pontiac, IL

As of 2020, the city population is 11430.

Major Cities Nearby Pontiac, IL

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