Typical Weather in Alpena, MI in September

69° F Avg High

51° F Avg Low

7 Rainy Days

☀️ Temperature Summary

Compared to other months, Alpena experiences cooler conditions in September, with daytime highs averaging 69°F. You can expect overnight lows near 51°F most days. Daily high temperatures can range between 73°F and 63°F for the month of September.

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

High Temps Throughout the Year

☔ Rain Summary

You can expect about a 24% chance of rain for any given day in September. It's one of the rainier months of the year for Alpena, with total rainfall for the month around 3 inches.