River Forest, in Illinois, United States, is home to roughly 11,200 people in the Central Time Zone at 41.9°N latitude.
Expect a humid continental climate in River Forest: average highs of 85°F in midsummer, lows near 19°F in midwinter, and an annual mean of 52°F. Precipitation totals roughly 34 inches per year, concentrated around May, with February typically the driest month.
View historical weather for River Forest · More cities in Illinois