Typical Weather in Ames, IA in September

77° F Avg High

52° F Avg Low

5 Rainy Days

☀️ Temperature Summary

September is a popular time of year to visit, with an inviting climate characterized by warm temperatures. Highs in September are typically around 77°F, which is warmer than usual in Ames. You can expect overnight lows near 52°F most days. Daily high temperatures can range between 79°F and 70°F for the month of September.

September is a great time to visit Ames, with mild temperatures and sunny days being very common.

High Temps Throughout the Year

☔ Rain Summary

You can expect about a 17% chance of rain for any given day in September. It's one of the rainier months of the year for Ames, with total rainfall for the month around 3 inches.