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The temperatures in Indiana in October are quite cold with temperatures between 9°C and 17°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Indiana during the month of October. 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 Indiana in October 2025.
If you’re planning to visit Indiana in the near future, we highly recommend that you review the 14 day weather forecast for Indiana before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 0° / -6° | 5 | 15 | 11 | 43 mm | Awful | Indiana in January |
| February | 2° / -4° | 4 | 14 | 10 | 44 mm | Awful | Indiana in February |
| March | 10° / 2° | 6 | 20 | 5 | 58 mm | Bad | Indiana in March |
| April | 16° / 7° | 6 | 23 | 1 | 79 mm | Good | Indiana in April |
| May | 22° / 13° | 7 | 24 | 0 | 90 mm | Ok | Indiana in May |
| June | 27° / 18° | 6 | 24 | 0 | 90 mm | Perfect | Indiana in June |
| July | 28° / 19° | 6 | 25 | 0 | 78 mm | Perfect | Indiana in July |
| August | 28° / 18° | 4 | 27 | 0 | 59 mm | Perfect | Indiana in August |
| September | 25° / 15° | 3 | 27 | 0 | 54 mm | Perfect | Indiana in September |
| October | 17° / 9° | 5 | 26 | 0 | 55 mm | Good | Indiana in October |
| November | 10° / 3° | 4 | 24 | 2 | 44 mm | Bad | Indiana in November |
| December | 4° / -2° | 4 | 19 | 8 | 45 mm | Awful | Indiana in December |