It was a warm start to the work week - afternoon highs tipped the scales in the upper 80s and low 90s (we reached 90° even here in Evansville with "feels like" temperatures north of 90° earlier this afternoon). This evening will remain mild, but dry; after seeing 88° around dinnertime , the mercury will gradually dwindle to 78° by 10PM before falling into the upper 60s for many of us early Tuesday morning. Our weak southerly wind flow will continue to help drive both temperatures and humidity higher tomorrow - we'll hit 92° on Tuesday afternoon with a heat index near 97°. The combination of heat and humidity won't only make it feel hotter either; we may see some scattered pop-up showers or thunderstorms tomorrow afternoon.
Rain chances are expected to be more prevalent on Wednesday and even more so come Thursday. After seeing a few isolated midweek thunderstorms with highs near 91° on Wednesday, an approaching cold front will introduce more cloud cover into the Ohio Valley on Thursday and help push temperatures back into the upper 80s that day. Unfortunately, the inbound cold front will interact with our ample supply of both Gulf heat and humidity here in the Tri-State - scattered showers and storms should disrupt our Thursday afternoon. At least the latest model data suggests that our Friday will remain dry; one can expect a high of 90° that day with mostly sunny skies.