textproduct: Louisville

KEY MESSAGES

* Dry weather expected through the end of the week, with afternoon highs in the mid to upper 80s.

* Muggy weather increases this weekend as daily shower and thunderstorm chances return by Sunday.

* Slightly above average temperatures continue through the first half of next week with upper 80s and low 90s.

SHORT TERM /THROUGH FRIDAY NIGHT/

Issued at 253 PM EDT Thu Jun 4 2026

Thursday Night - Friday Night...

The center of the surface high pressure has shifted to the SE of the area resulting in a southwesterly flow. This flow will bring warmer temperatures and increasing dew points. Partly clear skies will continue through tonight with nighttime lows in the low to mid 60s. Friday will be a rinse and repeat to finish out the week. High temperatures will be in the low to mid 80s with dewpoints in the upper 50s. A combination of elevated mixing heights and a pressure gradient building in over the Ohio Valley will lead to gusty winds for Friday between 20 and 25mph. Friday night a cold front will start to swing SE from the Central Plains. This frontal boundary will bring the rain chances back over the weekend, however should stay dry Friday night as showers are expected to remain north of the area.

LONG TERM /SATURDAY THROUGH WEDNESDAY/

Issued at 253 PM EDT Thu Jun 4 2026

Saturday - Wednesday...

The above mentioned cold front will continue to push SE and make its way into the Ohio Valley on Saturday. Southern IN will have a small chance (10-20%) of getting light rain showers Saturday morning. Partly cloudy skies will start the day with morning temperatures in upper 60s and dewpoints hovering around 60. As the day progresses temperatures will warm into the upper 80s and will become a muggy afternoon. As the pressure gradient is still hanging around, gusty winds around 25mph will provide some relief to the heat. Temperatures will stay steady in the upper 80s for Sunday.

A mid to high level cloud deck will move in from the NW Saturday night with increasing chances for rain into Sunday. Starting Sunday afternoon chances for scattered rain showers and a few thunderstorms increase to 30-50% across the area. Currently, Sunday afternoon has a 15-20% chance for thunderstorms across the area with no severe threat. High temperatures on Sunday will look to come close to hitting 90 degrees with mostly cloudy skies. The frontal boundary will begin to stall Sunday into Monday leading to lingering rain showers along the boundary. By Monday night, PoPs start to fall off a little bit, but then pick back up for more showers on Tuesday and Wednesday. After the passage of the cold front, a weak mid-level cutoff low dips into the upper Ohio Valley keeping rain showers around. QPF values from Sunday to Wednesday are showing a gradient from Bowling Green around 1" and the Bluegrass region at about 0.25". High temperatures will remain in the upper 80s for the first half of the week. The sun may start to peak out of the clouds on Wednesday, but for the majority of the long term cloudy skies can be expected.

AVIATION /18Z TAFS THROUGH 00Z SATURDAY/

Issued at 121 PM EDT Thu Jun 4 2026

VFR conditions will continue through the forecast period. Currently have mid-level cumulus clouds forming across the area, with high level clouds (SCT/BKN) through the night. Winds will remain out of the SW and become light overnight. Tomorrow winds will increase during the day, while sites have the potential to see gusty winds around 20kts.

LMK WATCHES/WARNINGS/ADVISORIES

KY...Air Quality Alert until midnight EDT tonight for KYZ029>031. IN...Air Quality Alert until midnight EDT /11 PM CDT/ tonight for INZ076>079-083-084-089>092.