About Lake Summerset, IL

Lake Summerset, in Illinois, United States, is home to roughly 2,000 people in the Central Time Zone at 42.5°N latitude.

Across a typical year Lake Summerset sees about 37 inches of precipitation and 37 inches of snow, with June the wettest month and January the driest. Temperatures range from January lows near 15°F up to July highs around 84°F, averaging 49°F annually — characteristic of a humid continental climate.