Weather in New Harmony, IN · National Weather Service + NOAA
New Harmony has milder winters than most of Indiana
New Harmony has chilly winters and warm summers. A typical July afternoon reaches 88°, a January night drops to 25°, and about 13 inches of snow falls in a normal winter.
Forecast, conditions and alerts: National Weather Service. Climate: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Temperatures and rainfall come from NOAA’s gridded normals for New Harmony itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Poseyville, IN (8 mi, snow) and Grayville, IL (11 mi, frost, heat and degree days). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.