Click on a day for an hourly weather forecast
The temperatures in Youngstown in September are comfortable with low of 13°C and and high up to 24°C.
You can expect about 3 to 8 days of rain in Youngstown 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 Youngstown in September 2025.
If you’re planning to visit Youngstown in the near future, we highly recommend that you review the 14 day weather forecast for Youngstown before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -1° / -7° | 7 | 4 | 21 | 116 mm | Awful | Youngstown in January |
| February | 1° / -6° | 7 | 4 | 18 | 118 mm | Awful | Youngstown in February |
| March | 8° / -1° | 8 | 12 | 11 | 137 mm | Awful | Youngstown in March |
| April | 14° / 4° | 10 | 14 | 6 | 161 mm | Bad | Youngstown in April |
| May | 21° / 10° | 10 | 21 | 0 | 165 mm | Ok | Youngstown in May |
| June | 25° / 14° | 10 | 20 | 0 | 189 mm | Good | Youngstown in June |
| July | 28° / 17° | 10 | 21 | 0 | 180 mm | Good | Youngstown in July |
| August | 27° / 16° | 8 | 23 | 0 | 132 mm | Good | Youngstown in August |
| September | 24° / 13° | 6 | 24 | 0 | 121 mm | Perfect | Youngstown in September |
| October | 16° / 7° | 8 | 22 | 1 | 131 mm | Ok | Youngstown in October |
| November | 9° / 1° | 8 | 14 | 8 | 106 mm | Awful | Youngstown in November |
| December | 3° / -3° | 9 | 7 | 16 | 123 mm | Awful | Youngstown in December |