Typical Weather in Riverton, WY in September
76° F Avg High
42° F Avg Low
2 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 Riverton, with highs averaging around 76°F. You can expect overnight lows near 42°F most days. Temperatures will usually fall as the month goes on, with daily high temperatures ranging between 82°F and 68°F.
The warm, dry temperatures in September make Riverton a great destination to relax and soak up the sun.
High Temps Throughout the Year
🎒 What to Pack
Pick up a few of these items to keep your trip fun and comfortable.
☔ Rain Summary
You can expect about a 7% chance of rain for any given day in September. It's one of the rainier months of the year for Riverton, with total rainfall for the month around 1 inches.
Rainfall Throughout the Year
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