Louisville, KY – A stretch of sweltering summer heat will lock in over Louisville through Sunday, with highs pushing into the mid-90s and little relief in sight.
According to the National Weather Service in Louisville, temperatures will peak near 94°F on Thursday, Friday, and Sunday, with Saturday topping out at 95°F — the hottest day of the stretch. Humidity will remain elevated, pushing the heat index toward triple digits, especially in urban areas and along major corridors like I-64.
The Fourth of July holiday will be sunny and hot with calm winds, raising the risk of heat-related illness. Residents planning to attend outdoor festivities are urged to drink water regularly, wear light clothing, and seek shade during peak sun hours.
Friday night offers little relief, with lows hovering around 70°F under mostly clear skies. That warm air sticks around into Saturday night, where the temperature will bottom out at only 73°F — not enough to cool down homes without air conditioning.
Louisville residents should also prepare for a pattern shift next week. By Monday, a 40% chance of thunderstorms returns, with highs near 91°F. Storms may continue into Tuesday and Wednesday, offering a possible break from the prolonged heat but introducing the threat of localized lightning and brief downpours.
📆 Five-Day Forecast: Louisville, KY
- Friday (July 4): Sunny and hot. High 94°F. Low 70°F.
- Saturday: Hot. High 95°F. Mostly clear overnight. Low 73°F.
- Sunday: Hot again. High 94°F. Partly cloudy at night. Low 74°F.
- Monday: 40% chance of thunderstorms. High 91°F. Low 72°F.
- Tuesday: 40% chance of storms. High 91°F. Low 72°F.
