Williston
FallPeak season ~74°F highs
Things to do in Williston in September
September is one of the best months to visit Williston, with average highs around 74°F. Crisp air and changing leaves make parks and viewpoints shine.
Best picks for September
What's famous here, weighted toward what shines in September.
Holidays in September 2027
- Labour Day · Mon, Sep 6
Expect busier roads and pricier stays around these dates. See long weekends.
Williston in September: quick answers
Is September a good time to visit Williston?
September is one of the best months to visit Williston, with average highs around 74°F. Crisp air and changing leaves make parks and viewpoints shine.
What is the weather like in Williston in September?
Average daytime highs are around 74°F, compared with 79°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 Williston in September?
Top picks for September: Fort Buford State Historic Site, Lewis & Clark State Park.