Sunday – SaturdaySeptember 6, 2026 – September 12, 2026Sunday: Mostly cloudy with a high of 62F and a low of 39F.Monday: Mostly cloudy with a high of 58F and a low of 29F.Tuesday: Mostly sunny with a high of 60F and a low of 29F.Wednesday: Sunny with a high of 68F and a low of 33F.Thursday: Mostly sunny with a high of 70F and a low of 39F.Friday: Mostly sunny with a high of 69F and a low of 37F.Saturday: Partly cloudy with a high of 70F and a low of 35F.Changing weather conditions exist. Be prepared when traveling through Yellowstone Country. Be prepared with layers! Up-to-date conditions at weather.gov All Yellowstone National Park interior roads close on November 1st. All entrances other than the north entrance at Gardiner and the northeast entrance at Cooke City close November 1st. The only road in Yellowstone that is open year-round is the road between the north and northeast entrances. Cooke City is the turn-around point at the northeast entrance after the Beartooth Highway closes for the season on October 12th.Yellowstone National Park 2026 regular vehicle opening and closing dates are posted below.Check travel conditions:Montana travel conditions (1-800-226-7623)Wyoming travel conditions (1-888-996-7623)Idaho – 511.idaho.gov or dial 5-1-1.Yellowstone Road Conditions:For up-to-date information call (307) 344-2117 for recorded information or sign up to receive Yellowstone Road alerts on your mobile phone by texting “82190” to 888-777 (an automatic text reply will confirm receipt and provide instructions). Anticipate possible road closures due to inclement weather and dangerous driving conditions.