About Dwight, IL's Climate & Weather History

Dwight is a city of approximately 4,100 people in Illinois, United States. Located in the Central Time Zone at 41.1°N latitude.

In 2025, Dwight recorded an average annual temperature of 52°F. The hottest temperatures reached 93°F in July; the coolest were -8°F in January. Total precipitation for the year was 33 inches, with the wettest month being July. Snowfall for the year totaled approximately 9 inches.