Click on a day for an hourly weather forecast
The temperatures in Topeka in September are comfortable with low of 15°C and and high up to 27°C.
You can expect about 3 to 8 days of rain in Topeka 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 Topeka in September 2025.
If you’re planning to visit Topeka in the near future, we highly recommend that you review the 14 day weather forecast for Topeka before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 3° / -5° | 3 | 22 | 6 | 35 mm | Awful | Topeka in January |
| February | 5° / -4° | 2 | 19 | 7 | 46 mm | Awful | Topeka in February |
| March | 13° / 3° | 6 | 22 | 3 | 111 mm | Bad | Topeka in March |
| April | 18° / 7° | 6 | 24 | 1 | 102 mm | Good | Topeka in April |
| May | 23° / 13° | 9 | 22 | 0 | 189 mm | Good | Topeka in May |
| June | 29° / 19° | 7 | 23 | 0 | 141 mm | Ok | Topeka in June |
| July | 31° / 20° | 7 | 24 | 0 | 151 mm | Ok | Topeka in July |
| August | 30° / 19° | 8 | 23 | 0 | 149 mm | Ok | Topeka in August |
| September | 27° / 15° | 6 | 24 | 0 | 114 mm | Perfect | Topeka in September |
| October | 19° / 9° | 4 | 26 | 1 | 94 mm | Good | Topeka in October |
| November | 12° / 3° | 3 | 26 | 1 | 51 mm | Ok | Topeka in November |
| December | 6° / -2° | 3 | 23 | 4 | 41 mm | Awful | Topeka in December |