West Yellowstone Weather in September
West Yellowstone in September sees pleasant daytime temperatures of 20°C (68°F) and nighttime lows of 0°C (32°F). Moderate snow/rainfall is typical, with around 36 mm (1.4 in) for the month.
Rainfall in West Yellowstone in September
Based on our climate data of the past 30 years, about 9 days of snow/rain are anticipated, with 36 mm (1.4 in) on average. A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.
Temperature in West Yellowstone in September
West Yellowstone has perfect weather in September, with days reaching 20°C (68°F) and nights cooling to 0°C (32°F). This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. With lows of 0°C (32°F), nights are freezing. Packing a spare blanket is worth considering if you're staying somewhere that might not be fully heated.If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our West Yellowstone's climate page.
West Yellowstone Temperature in September
Min Temperature
0°C (32°F)
Max Temperature
20°C (68°F)
Chance of Rain
31%
Precipitation
36 mm (1.4 in)
Rainy days
9 days
Best Places in the United States of America in September
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in September →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in West Yellowstone in September
For West Yellowstone in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Some rain is possible, so pack something to handle light showers.What To Do in West Yellowstone in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our West Yellowstone's climate page.
See the full West Yellowstone climate overview or explore weather in the United States of America.
