Yellowstone (Montana entrance)
Yellowstone (Montana entrance) in September
Great time to visit
September hits the sweet spot with comfortable weather, thinning crowds, and spectacular fall colors. Many consider this the best month to visit.
Weather
September ushers in autumn with cooling temperatures and crisp, clear days. Morning frosts become common but days warm pleasantly into the teens. Afternoon storms become rare and skies stay clearer longer.
19°C high2°C low4 rain days
Crowds & Cost
high crowds
~$200/day average
Events & Festivals
- •Fall elk bugling season begins
- •Aspen trees turn golden
September Tips
- •Elk bugling peaks mid-month - Lamar and Hayden valleys offer best viewing
- •Pack warm layers since morning temperatures can hit freezing
- •This is many locals' favorite month for hiking with perfect temps and fewer bugs
All Months
June through September gives you the full West Yellowstone experience. June can be muddy and cool, but wildlife is most active and crowds are manageable. July and August bring peak season chaos - book accommodations six months ahead and expect traffic delays. September is the sweet spot: warm days, cool nights, fewer crowds, and elk bugling season begins. Winter transforms the town into a snowmobile hub from December through March. Most restaurants and shops close, but the few that stay open create a cozy, local atmosphere. Spring (April-May) is unpredictable - some years bring snow, others bring early wildflowers.
Yellowstone (Montana entrance) Scores
Solo
7/10
Couples
7/10
Families
8/10
Adventure
8/10
Budget
6/10
Luxury
5/10
BUILD YOUR YELLOWSTONE (MONTANA ENTRANCE) PLAN
Insider picks, smart timing, and a plan ready when you are.