Surface high pressure continues to build into the forecast areas today. This is allowing for cooler air to move in. This cooler air will stick around to start the weekend with temperatures on Saturday forecast to be in the 80’s.
Saturday night into Sunday an upper-level ridge of high pressure will expand over the United States. As it does, heat and humidity will make it’s return to Indiana and Ohio. Temperatures Sunday and Monday will start to warm into the upper 80’s and 90’s in locations.
Heat Indexes Sunday afternoon and Monday will once again be very hot. The NAM model shows heat indexes in the mid 90’s to lower 100’s Monday afternoon. So if you have any plans Sunday or Monday make sure to drink plenty of water and try to keep cool!
While a few isolated to perhaps widely scattered storms will be possible Monday afternoon from I-70 north, the better chance of rain will come Tuesday. This will be thanks to a southeasterly moving cold front that will push across the area Tuesday. As it does, rain and some storms will develop along the front. Right now chances, amounts, and placement of rain is not certain, but we will fine-tune the forecast as we get closer to the forecast period.