Typical Weather in Hartford, CT in September

76° F Avg High

55° 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 76°F, which is warmer than usual in Hartford. You can expect overnight lows near 55°F most days. Temperatures will usually fall as the month goes on, with daily high temperatures ranging between 79°F and 70°F.

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

High Temps Throughout the Year

☔ Rain Summary

In September you can expect close to a 18% chance of rain for any given day. It rains less than usual in September, with total rainfall for the month typically near 4 inches.