McLeansboro Climate Graph - Illinois Climate Chart
Climate summaryWhat is the average weather in McLeansboro, Illinois?
McLeansboro experiences a humid continental climate, marked by very strong seasonal temperature swings. Summers are hot, while winters bring cold conditions. Precipitation is fairly wet overall and spread relatively evenly throughout the year, with a modest peak in spring and the driest period occurring in winter.
Based on climate normals · 1991–2020 McLeansboro weather averages