Louisville Enjoys Sunny Reprieve Before 90-Degree Heat Roars Back

Louisville is starting Wednesday, August 26, under clear skies around 61 degrees and calm winds, but the easy morning is headed toward an 89-degree afternoon. Mostly sunny skies and a light south wind should keep the daytime forecast dry, giving the city one more low-drama summer day before storms and a hotter stretch enter the picture.

The National Weather Service in Louisville says Wednesday should remain dry. Temperatures should rise through the 70s by late morning and reach the upper 80s around mid-afternoon, while mainly southwest winds continue.

Thursday Starts With A Small Storm Chance

Clouds increase Wednesday night, with a 30% chance of showers or thunderstorms after 4 a.m. Thursday, August 27, and a low around 69. According to National Weather Service, forecasters say the severe-weather threat is low, although an isolated strong storm is possible mainly north of the Ohio River late Wednesday night.

Sunshine Returns, Then The Heat Cranks Up

Thursday should clear after the early shower chance, with a high near 88. Friday looks sunny and dry with a high around 87, making the end of the workweek the most comfortable part of the outlook.

Saturday climbs to around 90 under sunny skies, then Sunday reaches 93. Monday and Tuesday are currently the hottest days in view, both near 94, with mostly sunny to sunny skies and little chance of rain.

According to the National Weather Service Louisville, the latest climate normals are based on 1991-2020 data. According to the National Weather Service Louisville, the city set 12 record warm temperatures in August 2007, when the month's average was 85 degrees compared with a normal of 78.9 degrees. The National Weather Service Louisville's August 2019 summary reports that heat peaked from the 18th to the 20th, when Louisville saw 98° on two of those days.

What Louisville Residents Should Watch

There are no watches, warnings or advisories listed for the Louisville forecast area. Even so, the late-week setup favors heat building steadily, so outdoor plans will be easier Friday than Sunday through Tuesday; bring water, take breaks and check the forecast if temperatures run higher than expected.