FallPeak season ~72°F highs

Things to do in Rock Springs in September

September is one of the best months to visit Rock Springs, with average highs around 72°F. Crisp air and changing leaves make parks and viewpoints shine.

Plan a September weekend Where else in September

Best picks for September

What's famous here, weighted toward what shines in September.

1Foliage walks

Grand Teton National Park

United States National Park in northwestern Wyoming

2Foliage walks

Ashley National Forest

national forest in Utah and Wyoming, United States

3Foliage walks

Holidays in September 2027

Labour Day · Mon, Sep 6

Expect busier roads and pricier stays around these dates. See long weekends.

Also great in September in Wyoming

Sheridan Laramie Casper

Rock Springs in September: quick answers

Is September a good time to visit Rock Springs?

September is one of the best months to visit Rock Springs, with average highs around 72°F. Crisp air and changing leaves make parks and viewpoints shine.

What is the weather like in Rock Springs in September?

Average daytime highs are around 72°F, compared with 85°F in the warmest month. Check the forecast a week out; our planner favors indoor stops on rainy days.

What are the best things to do in Rock Springs in September?

Top picks for September: Grand Teton National Park, Ashley National Forest, John D. Rockefeller, Jr. Memorial Parkway, National Elk Refuge, Seedskadee National Wildlife Refuge.