Weather
Louisville, KY Weather Oct. 20-21: Chilly Nights, Warm Days
Louisville, KY – Residents across central Kentucky and southern Indiana can expect a noticeable contrast between chilly overnight temperatures and warm fall afternoons Tuesday, October 20, and Wednesd
By Miles Carter · 2026-10-20T08:43:37.836Z
Louisville, KY – Residents across central Kentucky and southern Indiana can expect a noticeable contrast between chilly overnight temperatures and warm fall afternoons Tuesday, October 20, and Wednesday, October 21. Temperatures could fall into the upper 30s overnight before climbing into the middle 70s during the day.
According to the National Weather Service in Louisville, pleasant fall weather will continue through the remainder of the week, bringing crisp mornings, mild afternoons and generally dry conditions across the region.
Tuesday, October 20, will feature partly sunny skies , with afternoon temperatures ranging from 69 to 74 degrees across the forecast area.
The mild conditions should provide comfortable weather for residents heading outdoors, although temperatures will drop considerably after sunset.
Tuesday night, lows are expected to range from 38 to 44 degrees, with patchy fog possible in some locations.
The fog could affect visibility in isolated areas , particularly along rural roads, valleys and other fog prone locations during the overnight and early morning hours.
Motorists traveling late Tuesday or early Wednesday should remain alert for changing visibility where fog develops.
Wednesday, October 21, will bring another warm afternoon , with sunny skies and highs ranging from 70 to 75 degrees.
The warmer temperatures will continue across much of the Louisville metropolitan area and surrounding central Kentucky communities.
Wednesday night will remain clear, with temperatures falling between 39 and 45 degrees.
The difference between afternoon highs and overnight lows could exceed 30 degrees in some locations, making layered clothing useful for residents heading to work or school.
The extended pleasant weather should also provide favorable conditions for outdoor recreation, fall activities and regional travel.
The Weather Service expects the pattern of crisp mornings and warm afternoons to continue through the rest of the week, although specific temperatures beyond Wednesday were not included in the latest graphic.