The temperatures in Maryland Heights in September are comfortable with low of 16°C and and high up to 27°C.
You can expect about 3 to 8 days of rain in Maryland Heights 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 Maryland Heights in September 2025.
If you’re planning to visit Maryland Heights in the near future, we highly recommend that you review the 14 day weather forecast for Maryland Heights before you arrive.