Weather in Grand Tower, IL · National Weather Service + NOAA
Grand Tower has milder winters than most of Illinois
Grand Tower has chilly winters and warm summers. A typical July afternoon reaches 89°, a January night drops to 25°, and about 6 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 Grand Tower itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Grand Twr 2 N, IL (2 mi, snow) and Carbondale Southern Il Airport, IL (15 mi, frost, heat and degree days). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.