Typical Weather in Altoona, PA in September
72° F Avg High
53° F Avg Low
7 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 72°F, which is warmer than usual in Altoona. You can expect overnight lows near 53°F most days. Temperatures will usually fall as the month goes on, with daily high temperatures ranging between 75°F and 66°F.
September is a great time to visit Altoona, with mild temperatures and sunny days being very common.
High Temps Throughout the Year
☔ Rain Summary
In September you can expect close to a 23% chance of rain for any given day. It rains less than usual in September, with total rainfall for the month typically near 4 inches.
Rainfall Throughout the Year
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