About Granville, IL

Granville, in Illinois, United States, is home to roughly 1,300 people in the Central Time Zone at 41.3°N latitude.

Recent weather here gives a sense of typical conditions: in 2025, Granville recorded a mean annual temperature of 52°F, ranging from -9°F lows in January to 93°F highs in June, with about 32 inches of precipitation across the year.