Boise
FallPeak season ~84°F highs
Things to do in Boise in September
September is one of the best months to visit Boise, with average highs around 84°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.
Boise in September: quick answers
Is September a good time to visit Boise?
September is one of the best months to visit Boise, with average highs around 84°F. Crisp air and changing leaves make parks and viewpoints shine.
What is the weather like in Boise in September?
Average daytime highs are around 84°F, compared with 93°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 Boise in September?
Top picks for September: Boise National Forest, Frank Church-River of No Return Wilderness, Morley Nelson Snake River Birds of Prey National Conservation Area, Ann Morrison Park, Bruneau Dunes State Park.
