The temperatures in Gary in September are comfortable with low of 16°C and and high up to 23°C.
You can expect about 3 to 8 days of rain in Gary 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 Gary in September 2025.
If you’re planning to visit Gary in the near future, we highly recommend that you review the 14 day weather forecast for Gary before you arrive.
Temperatures
23° / 16°
Rainy Days
7
Snowy Days
0
Dry Days
23
Rainfall
86
mm
Sun Hours
7.8
Hrs
