Wednesday will likely be another record breaking afternoon as highs rise into the low 80s. The sunshine expected for today will fade to cloud cover later this evening and Thursday as low pressure moves into the western Great Lakes. Moisture from the Gulf of Mexico will be in full supply, as it has been for folks in the south the past couple days, as each little upper level disturbance that rotates around the main low. Rain will increase in coverage from southwest to northeast Thursday morning with potentially heavy rainfall setting up by Thursday evening. Rainfall totals could approach one inch by Friday morning in some spots across northern Illinois and southern Wisconsin.
Scattered showers and storms will last through Friday as the upper level low slides southeast. Cooler temperatures aloft will be associated with the low so it's possible should we see any sunshine Friday afternoon thunderstorms could develop allowing the threat for hail.
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