Click on a day for an hourly weather forecast
The temperatures in Jackson in September are comfortable with low of 13°C and and high up to 21°C.
You can expect about 3 to 8 days of rain in Jackson 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 Jackson in September 2025.
If you’re planning to visit Jackson in the near future, we highly recommend that you review the 14 day weather forecast for Jackson before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -5° / -10° | 4 | 11 | 17 | 59 mm | Awful | Jackson in January |
| February | -3° / -9° | 3 | 10 | 15 | 59 mm | Awful | Jackson in February |
| March | 4° / -2° | 7 | 15 | 9 | 83 mm | Awful | Jackson in March |
| April | 10° / 3° | 8 | 17 | 5 | 144 mm | Awful | Jackson in April |
| May | 17° / 9° | 8 | 23 | 0 | 152 mm | Ok | Jackson in May |
| June | 22° / 14° | 7 | 23 | 0 | 170 mm | Ok | Jackson in June |
| July | 25° / 17° | 7 | 24 | 0 | 148 mm | Good | Jackson in July |
| August | 25° / 16° | 7 | 24 | 0 | 131 mm | Good | Jackson in August |
| September | 21° / 13° | 6 | 24 | 0 | 96 mm | Good | Jackson in September |
| October | 14° / 7° | 7 | 23 | 1 | 125 mm | Ok | Jackson in October |
| November | 6° / 0° | 5 | 19 | 6 | 78 mm | Awful | Jackson in November |
| December | -1° / -5° | 5 | 12 | 14 | 68 mm | Awful | Jackson in December |