The most pleasant months of the year for Merton village are June, August and July. In Merton village, there are 4 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for Merton village with an average high temperature of 81.2°, which ranks it as about average compared to other places in Wisconsin. January is the snowiest month in Merton village with 12.4 inches of snow, and 6 months of the year have significant snowfall. July is the most humid month, though humidity is low for most of the year.