Click on a day for an hourly weather forecast
The temperatures in Hammond in September are comfortable with low of 15°C and and high up to 24°C.
You can expect about 3 to 8 days of rain in Hammond 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 Hammond in September 2025.
If you’re planning to visit Hammond in the near future, we highly recommend that you review the 14 day weather forecast for Hammond before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -2° / -7° | 5 | 10 | 16 | 59 mm | Awful | Hammond in January |
| February | 0° / -6° | 4 | 10 | 14 | 72 mm | Awful | Hammond in February |
| March | 7° / 1° | 7 | 17 | 7 | 86 mm | Awful | Hammond in March |
| April | 13° / 5° | 8 | 19 | 3 | 125 mm | Awful | Hammond in April |
| May | 19° / 11° | 8 | 23 | 0 | 162 mm | Ok | Hammond in May |
| June | 25° / 16° | 9 | 21 | 0 | 190 mm | Good | Hammond in June |
| July | 27° / 19° | 9 | 22 | 0 | 175 mm | Good | Hammond in July |
| August | 27° / 19° | 7 | 24 | 0 | 151 mm | Good | Hammond in August |
| September | 24° / 15° | 5 | 25 | 0 | 96 mm | Perfect | Hammond in September |
| October | 16° / 9° | 6 | 25 | 0 | 97 mm | Good | Hammond in October |
| November | 8° / 3° | 5 | 20 | 5 | 63 mm | Bad | Hammond in November |
| December | 2° / -2° | 6 | 14 | 11 | 63 mm | Awful | Hammond in December |