Typical Weather in St Louis, MO in January
40° F Avg High
25° F Avg Low
5 Rainy Days
☀️ Temperature Summary
January is one of the cooler months of the year for St Louis, with highs averaging around 40°F. Overnight lows can reach 25°F. This is the coldest month of the year in St Louis.
You may want to consider a warmer month to visit St Louis, unless you're ready to brave the cold. If you're looking to travel when it's warmer, you might consider visiting in December instead, when daily highs are typically closer to 44°.
High Temps Throughout the Year
🎒 What to Pack
Pick up a few of these items to keep your trip fun and comfortable.
☔ Rain Summary
In January you can expect close to a 16% chance of rain for any given day. It rains less than usual in January, with total rainfall for the month typically near 3 inches.
Rainfall Throughout the Year
Planning a trip to St Louis? Try our free trip weather planner