The temperatures in Hannibal in October are quite cold with temperatures between 9°C and 18°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Hannibal 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.
Our weather forecast can give you a great sense of what weather to expect in Hannibal in October 2025.
If you’re planning to visit Hannibal in the near future, we highly recommend that you review the 14 day weather forecast for Hannibal before you arrive.
Temperatures
18° / 9°
Rainy Days
6
Snowy Days
0
Dry Days
25
Rainfall
117
mm
Sun Hours
9.5
Hrs
