Spring Valley is a city of approximately 5,300 people in Illinois, United States. Located in the Central Time Zone at 41.3°N latitude.
In 2025, Spring Valley recorded an average annual temperature of 52°F. The hottest temperatures reached 93°F in May; the coolest were -9°F in January. Total precipitation for the year was 32 inches, with the wettest month being July. Snowfall for the year totaled approximately 10 inches.
View current conditions and forecast for Spring Valley · More cities in Illinois