No items to display; ... West Yellowstone, MT. Forecast for Yellowstone National Park (taken from Yellowstone Lake) Spring & Fall. The monthly temperature, precipitation and hours of sunshine. Daytime temperatures range from 30F to the 60F (0 to 20C) with overnight lows in the teens to single digits (-5C to -20C). Find out more about our data sources. I think Sept is a perfect time to go to Yellowstone as you avoid the summer crowds and it is still warm enough to enjoy it. September generally marks the beginning of autumn for Yellowstone; it’s when places begin closing, either until next summer rolls around or in the interim between autumn and winter. The climate of West Yellowstone is very distinctive, with typically hot summer weather and harsh overnight frosts during the Montana winters. Facilities open on a staggered schedule and then close in September and October. Dates: September - November. In spring, the weather is unstable, and you need to pack layers. West Yellowstone weather averages and climate West Yellowstone, Montana. Daily low temperatures decrease by 8°F , from 41°F to 33°F , rarely falling below 24°F or exceeding 48°F . The least humid month is September (42% … There is less traffic and the scenery dressed in all the fall colors is awe-inspiring. Average Weather in September in West Yellowstone Montana, United States Daily high temperatures decrease by 13°F , from 71°F to 58°F , rarely falling below 44°F or exceeding 79°F . The Elk Rut-While visiting Yellowstone in autumn you will be enthralled by the … It will be cool in the evenings and mornings, but snow should not be a problem. Today’s and tonight’s weather forecast, weather conditions and Doppler radar from The Weather Channel and Weather.com. Annual Weather Averages in West Yellowstone Based on weather reports collected during 2005–2015. It is another great time to visit the Park. The weather guide for West Yellowstone, Montana shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by MeteoBlue. Mixed precipitation ending in the evening, partly cloudy overnight. Average weather West Yellowstone, MT. With an average snowfall of 72 inches in December, it's no wonder that the park cannot keep the roads clear, so the majority of roads are closed during the winter weather season. Snow is common in the spring and fall with regular accumulations of 12″ in a 24-hour period. Weather: Fall is beautiful in Yellowstone with crisp, cool air and the aspens glowing with a palette of oranges, yellows and reds. Yellowstone National ParkSpring and autumn are known for the mild weather and fewer crowds, that's why April to May and September to November is the best time to visit Yellowstone National Park. Get the monthly weather forecast for Yellowstone National Park, WY, including daily high/low, historical averages, to help you plan ahead. The average night-time temperature is usually a cold 0°C (32°F). September is by far the best time to visit Yellowstone and here are 5 reasons why: 1. Find the most current and reliable 14 day weather forecasts, storm alerts, reports and information for West Yellowstone, MT, US with The Weather Network. There are usually 9 hours of bright sunshine each day, which represents 69% of the 12 hours of daylight. See long range weather forecasts for the next 60 days for the Intermountain Region. Recently Searched. * Reported Sep 1 12:15 am — Sep 30 11:50 pm, Yellowstone National Park. Get the monthly weather forecast for West Yellowstone, MT, including daily high/low, historical averages, to help you plan ahead. The best times to visit Yellowstone National Park are from April to May and between September and October. Early September weather should be just fine. Showing: All Year January February March April May June July … Very comfortable as a matter of fact. Best time of year to visit . yellowstone has two distinct seasons The summer season begins in late April as the roads are cleared of snow.