The humid and muggy weather we were stuck with most of last week took a short break late in the weekend following a cold front Saturday afternoon. This brought dew point temperatures, a direct measurement of how much moisture is in the atmosphere, down from the mid 70s late last week into the upper 50s and low 60s Sunday afternoon.
It was warm Sunday with temperatures rising into the low 80s, but it felt a lot more comfortable. The drier air will stick around through Monday evening before southerly winds bring moisture back into the Midwest. A warm front will lift through northern Illinois and southern Wisconsin late Tuesday night and Wednesday morning. With the northward passage of the warm front, dew point temperatures will rise back into the upper 60s to low 70s.
Scattered thunderstorms will be likely during the afternoon ahead of a cold front that will move through Wednesday evening/night. Following the front Thursday dew point temperatures will drop briefly before rising once again by the end of the week and weekend.