Click on a day for an hourly weather forecast
The temperatures in Joplin in September are comfortable with low of 17°C and and high up to 28°C.
You can expect about 3 to 8 days of rain in Joplin 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 Joplin in September 2025.
If you’re planning to visit Joplin in the near future, we highly recommend that you review the 14 day weather forecast for Joplin before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 6° / -3° | 5 | 21 | 5 | 74 mm | Awful | Joplin in January |
| February | 7° / -1° | 5 | 18 | 6 | 80 mm | Bad | Joplin in February |
| March | 14° / 5° | 7 | 22 | 2 | 142 mm | Bad | Joplin in March |
| April | 19° / 9° | 8 | 22 | 1 | 171 mm | Ok | Joplin in April |
| May | 24° / 14° | 11 | 20 | 0 | 216 mm | Good | Joplin in May |
| June | 30° / 20° | 9 | 21 | 0 | 153 mm | Ok | Joplin in June |
| July | 32° / 21° | 8 | 23 | 0 | 157 mm | Ok | Joplin in July |
| August | 31° / 20° | 8 | 23 | 0 | 152 mm | Ok | Joplin in August |
| September | 28° / 17° | 6 | 24 | 0 | 139 mm | Perfect | Joplin in September |
| October | 20° / 10° | 6 | 25 | 0 | 136 mm | Good | Joplin in October |
| November | 13° / 4° | 4 | 25 | 1 | 83 mm | Ok | Joplin in November |
| December | 8° / 0° | 4 | 24 | 3 | 83 mm | Bad | Joplin in December |