About Warrenton, MO's Climate & Weather History

Warrenton, in Missouri, United States, is home to roughly 8,100 people in the Central Time Zone at 38.8°N latitude.

In 2025, Warrenton recorded an average annual temperature of 56°F. The hottest temperatures reached 95°F in July; the coolest were -5°F in January. Total precipitation for the year was 38 inches, with the wettest month being April. Snowfall for the year totaled approximately 8 inches.