Princeton is a city of approximately 7,600 people in Illinois, United States. Located in the Central Time Zone at 41.4°N latitude.
Recent weather here gives a sense of typical conditions: in 2025, Princeton recorded a mean annual temperature of 52°F, ranging from -10°F lows in January to 95°F highs in June, with about 32 inches of precipitation across the year.
View historical weather for Princeton · More cities in Illinois