


Area Forecast Discussion
Issued by NWS Louisville, KY
Issued by NWS Louisville, KY
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135 FXUS63 KLMK 311540 AFDLMK Area Forecast Discussion National Weather Service Louisville KY 1140 AM EDT Sun Aug 31 2025 ...Forecast Update... .KEY MESSAGES... * Isolated daytime shower and thunderstorm chances return across southern KY for Labor Day, and then all other locations through mid to late week. * A strong front will bring another shot of cool and dry air to the region late next week. && .UPDATE... Issued at 1140 AM EDT Sun Aug 31 2025 The forecast is on track late this morning, and no changes planned at this time. After a cool start, temps are recovering through the 70s, and should still reach their mark of upper 70s to low 80s for most by this afternoon. A few mid 80 readings across the south likely if scattered upper clouds and light NE surface winds don`t impact heating too much. && .SHORT TERM /THROUGH TONIGHT/... Issued at 341 AM EDT Sun Aug 31 2025 Today, the Great Lakes centered surface high will remain over the Lower Ohio Valley, keeping the forecast dry and mostly sunny, but with an upper ridge remaining over the western US and trough over the eastern US, northwest flow will carry some high level clouds over the CWA. This is downstream of precipitation over the Northern Plains and Midwest. Cold air advection from northeast winds will keep highs in the upper 70s over parts of southern Indiana to the mid 80s in south central Kentucky. Tonight, northwest flow will continue streaming a few high level clouds overhead, but skies will remain mostly clear over the Lower Ohio Valley. With northeast surface winds continuing and some radiative cooling, temperatures are expected to drop into the 50s. && .LONG TERM /MONDAY THROUGH SATURDAY/... Issued at 341 AM EDT Sun Aug 31 2025 Labor Day, an inverted surface trough extending through the Tennessee Valley is expected to generate scattered showers across southern Kentucky, mainly in the Lake Cumberland area. The global models are a little less bullish with the precipitation, but isolated showers and thunderstorms remain possible in the area. Most of the CWA will remain dry. High temperatures are expected to be slightly warmer across southern Indiana with temperatures near 80. Farther south, across central Kentucky, the mid 80s will be more common. Tuesday through Thursday remains the most active part of the forecast. Continued northwest flow pushes a shortwave into the Lower Ohio Valley on Tuesday. Widespread scattered showers and thunderstorms spread across the CWA with the best chances over the Bluegrass and Lake Cumberland regions Tuesday night and Wednesday. A cold front, arriving early Thursday, will bring an end to precipitation chances. Tuesday and Wednesday will see highs in the mid 70s to low 80s before Thursday`s cold front limits highs to the upper 60s to low 70s along and north of Interstate 64. Next weekend continues to look nice with more high pressure moving into the area. Sunny skies will slowly lift temperatures day by day from the low to upper 70s on Friday to the upper 70s to mid 80s by Sunday. && .AVIATION /12Z TAFS THROUGH 18Z MONDAY/... Issued at 736 AM EDT Sun Aug 31 2025 VFR conditions are expected to continue through the forecast period as strong high pressure centers to our north. Look for steady NE surface winds again today mostly between 5 and 10 mph. A few gusts up around 15 to 20 mph will be possible through the afternoon. && .LMK WATCHES/WARNINGS/ADVISORIES... KY...None. IN...None. && $$ UPDATE...BJS SHORT TERM...KDW LONG TERM...KDW AVIATION...KDW