The most pleasant months of the year for Lost Springs are June, September and August. In Lost Springs, there are 3 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for Lost Springs with an average high temperature of 86.0°, which ranks it as about average compared to other places in Wyoming. March is the snowiest month in Lost Springs with 10.1 inches of snow, and 9 months of the year have significant snowfall. Days with noticeable humidity are rare throughout the year.