textproduct: Louisville

KEY MESSAGES

* Seasonably mild weather will continue today. Many locations will climb back into the 80s Wednesday through Saturday.

* Remnants of a potential tropical cyclone may bring beneficial rainfall to the region Sunday and into early next week.

DISCUSSION

Issued at 327 AM EDT Tue Oct 6 2026

=== Dry and Warm Through the End of the Week ===

High pressure at the surface and weak flow aloft will bring continued dry and warm conditions through the end of this week.

Ample mixing this afternoon will help drier air aloft to mix down to the surface. Dew points are expected to be in the upper 30s and low 40s and highs in the mid-upper 70s. Overnight and into Wednesday, high pressure will push off to the east and southwesterly flow will return. This will bring a warmer and slightly more moist airmass into the region. Highs on Wednesday will be in the upper 70s and low 80s. Though deep mixing in the afternoon will help dew points to drop into the 40s and will bring breezy winds.

Thursday, a decaying cold front will move into the Ohio Valley and high pressure will build in behind. These features will reinforce the dry airmass without much of a change in temperatures. We will continue to see highs in the upper 70s and low 80s through the end of the week.

=== Weekend: Remnants of a Potential Tropical System ===

On Saturday, high pressure will shift east of the region and southerly return flow will increase temperatures and moisture over the region. Aloft, ridging will quickly build and enhance increased high temperatures.

The National Hurricane Center has outlined AL92 in the Gulf with an 80% chance of becoming a tropical cyclone over the next few days. While there is still uncertainty in the strength of this system and the interaction with the strong ridging over the Mid-Atlantic / Ohio Valley, this system may bring remnant energy and moisture into the lower Ohio Valley. If the low pressure tracks north into the lower Ohio Valley, we will expect to see plenty of moisture and beneficial rainfall. There is still quite a bit of spread in QPF totals, since it is conditional on the track of the tropical system. Though, there is a 45% chance of exceeding 1 inch of rainfall and a 20% chance of exceeding 2 inches over southern Kentucky. Over the next few forecast cycles, more details will become clearer.

AVIATION /12Z TAFS THROUGH 18Z WEDNESDAY/

Issued at 657 AM EDT Tue Oct 6 2026

VFR conditions will continue through the entire TAF period due to high pressure. Light northeasterly winds will continue and will shift to the easterly Tuesday afternoon. Skies will remain mostly clear through this TAF cycle.

LMK WATCHES/WARNINGS/ADVISORIES

KY...None. IN...None.