The temperatures in St. Louis in October are quite cold with temperatures between 8°C and 17°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in St. Louis during the month of October. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Please note that St. Louis can expect a few days of snow in October.
Our weather forecast can give you a great sense of what weather to expect in St. Louis in October 2025.
If you’re planning to visit St. Louis in the near future, we highly recommend that you review the 14 day weather forecast for St. Louis before you arrive.
Temperatures
17° / 8°
Rainy Days
6
Snowy Days
1
Dry Days
24
Rainfall
120
mm
Sun Hours
9.2
Hrs
