Climate almanac
Lewiston
Maine, United States · 44.10°, -70.21°
What is the weather like in Lewiston in September?
In September, Lewiston is typically 71°F (22°C) during the day and 56°F (13°C) at night. The month brings about 2.8 in (72 mm) of precipitation in total.
- Average high71°F (22°C)
- Average low56°F (13°C)
- Precipitation2.8 in (72 mm)
- Clear or mostly clear days11
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)