The weather in Waco in September is hot. The average temperatures are between 21°C and 32°C.
You can expect about 3 to 8 days of rain in Waco during the month of September. 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 Waco in September 2025.
If you’re planning to visit Waco in the near future, we highly recommend that you review the 14 day weather forecast for Waco before you arrive.
Temperatures
32° / 21°
Rainy Days
6
Snowy Days
0
Dry Days
24
Rainfall
144
mm
Sun Hours
10.8
Hrs