About St Louis, MO's Climate & Weather History

With a population of around 280,000, St Louis sits in Missouri, United States. The city operates in the Central Time Zone.

In 2025, St Louis recorded an average annual temperature of 57°F — about 0.9°F above the 30-year normal of 57°F. The hottest day reached 98°F in June; the coldest was -1°F in February. Total precipitation was 42 inches (near normal). The wettest month was April.