Overview

• Temperatures are running 15 to 20 degrees above normal from Chicago to the Twin Cities and Detroit, with widespread 80s and some spots near 90.
• Milwaukee set a record high of 87°F on Friday as southeast Wisconsin and Madison flirt with additional October records this weekend.
• The National Weather Service warned of elevated fire danger in the Chicago area Sunday because of hot, dry and breezy conditions.
• The Medtronic Twin Cities Marathon will unfold in unusually warm, windy weather, with morning temperatures near 70°F, highs in the low 80s and gusts up to 30–40 mph.
• Forecasts point to a front late Monday into Tuesday that will end the warm spell, bringing showers and dropping highs to the 60s by midweek.