We're enjoying some nice sunshine again on this Tuesday. Some clouds have moved into the Tri-States, but the thicker clouds won't arrive until later in the night. Winds will come out of the south, at times gusting up to about 22 mph. The sunshine along with those southerly winds will allow us to be a little hotter on Tuesday with highs in the upper 80s to low 90s. Humidity is expected to increase a little, so heat index values will be between 90 to 95 degrees.
A cold front is to our northwest. The arrival time of the front into the Tri-States has slowed. So Tuesday will be dry. Showers and thunderstorms will arrive overnight Tuesday tonight and into early Wednesday morning. These storms will be widespread and will pose the greatest flash flooding risk. I can't rule out some strong winds and hail though, as most of the Tri-States will be under the risk of strong to severe storms. While we may see a break during the afternoon and early evening hours, more showers and thunderstorms will be possible later that evening before coming to an end later that night. Due to the cloud cover and rain, it won't be as hot. Highs will be in the mid 80s.
On Thursday we'll have decreasing cloud cover with highs in the upper 80s. By Friday, highs will be in the low 90s as the heat wave rolls into the Tri-States. The weekend is going to be very hot with highs in the mid 90s and heat index values ranging from 100-107.