Click on a day for an hourly weather forecast
The temperatures in Kansas City in September are comfortable with low of 16°C and and high up to 26°C.
You can expect about 3 to 8 days of rain in Kansas City 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 Kansas City in September 2025.
If you’re planning to visit Kansas City in the near future, we highly recommend that you review the 14 day weather forecast for Kansas City before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 3° / -5° | 4 | 21 | 7 | 46 mm | Awful | Kansas City in January |
| February | 4° / -4° | 3 | 17 | 8 | 58 mm | Awful | Kansas City in February |
| March | 12° / 3° | 6 | 21 | 3 | 129 mm | Bad | Kansas City in March |
| April | 17° / 8° | 7 | 22 | 1 | 127 mm | Ok | Kansas City in April |
| May | 23° / 13° | 9 | 22 | 0 | 190 mm | Good | Kansas City in May |
| June | 29° / 19° | 9 | 21 | 0 | 148 mm | Ok | Kansas City in June |
| July | 30° / 20° | 9 | 22 | 0 | 184 mm | Ok | Kansas City in July |
| August | 30° / 19° | 8 | 23 | 0 | 167 mm | Ok | Kansas City in August |
| September | 26° / 16° | 6 | 24 | 0 | 119 mm | Perfect | Kansas City in September |
| October | 19° / 9° | 5 | 25 | 1 | 109 mm | Good | Kansas City in October |
| November | 12° / 3° | 4 | 25 | 1 | 68 mm | Ok | Kansas City in November |
| December | 6° / -2° | 3 | 23 | 5 | 61 mm | Awful | Kansas City in December |