Typical Weather in Billings, MT in September

78° F Avg High

46° F Avg Low

3 Rainy Days

☀️ Temperature Summary

September is a popular time to visit, with an inviting climate featuring warm temperatures. September is one of the warmer months of the year for Billings, with highs averaging around 78°F. You can expect overnight lows near 46°F most days. Daily high temperatures can range between 82°F and 72°F for the month of September.

The warm, dry temperatures in September make Billings a great destination to relax and soak up the sun.

High Temps Throughout the Year

☔ Rain Summary

In September you can expect close to a 11% chance of rain for any given day. It rains more than usual in September, with total rainfall for the month typically near 1 inches.