FallPeak season ~74°F highs

Things to do in Bismarck in September

September is one of the best months to visit Bismarck, with average highs around 74°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

Fort Abraham Lincoln State Park

North Dakota state park

2Foliage walks

Cedar River National Grassland

protected area in southern North Dakota

3Foliage walks

Holidays in September 2027

Labour Day · Mon, Sep 6

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

Bismarck in September: quick answers

Is September a good time to visit Bismarck?

September is one of the best months to visit Bismarck, with average highs around 74°F. Crisp air and changing leaves make parks and viewpoints shine.

What is the weather like in Bismarck in September?

Average daytime highs are around 74°F, compared with 81°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 Bismarck in September?

Top picks for September: Fort Abraham Lincoln State Park, Cedar River National Grassland, Fort Clark Historic Site, Beaver Lake State Park, Knife River Indian Villages National Historic Site.