Edwardsville Weather in September

Edwardsville in September sees high temperatures, with highs around 27°C (81°F) and overnight lows of 15°C (59°F). Rainfall is fairly high at around 94 mm (3.7 in) on average, so pack waterproofs just in case.

Rainfall in Edwardsville in September

Historically, approximately 10 days this month are expected to have rain, averaging 94 mm (3.7 in). The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Edwardsville in September

September is one of the better months to visit Edwardsville. Expect 27°C (81°F) during the day and 15°C (59°F) at night. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights cool down to 15°C (59°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

Sunshine in Edwardsville in September

Expect sunny days throughout the month, with an estimated 235 hours of sunshine. This makes it a pleasant time to visit Edwardsville.

If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Edwardsville.