Area Forecast Discussion
Issued by NWS Louisville, KY
Issued by NWS Louisville, KY
Versions:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
134 FXUS63 KLMK 221156 AFDLMK Area Forecast Discussion National Weather Service Louisville KY Issued by National Weather Service St Louis MO 756 AM EDT Wed Jul 22 2026 .KEY MESSAGES... * Today, calm weather moves in with cooler than average temperatures through Saturday. * Friday night into Saturday, rain chances return with average high temperatures, in the low 90s, returning on Sunday. && .SHORT TERM /THROUGH THURSDAY/... Issued at 319 AM EDT Wed Jul 22 2026 Today, surface high pressure, centered over the upper Midwest, will continue getting pushed into the Lower Ohio Valley by northwest flow. This is driving CAA, bringing dry and cooler air. Dew points will continue falling until reaching the mid to upper 50s in southern Indiana to the upper 60s to low 70s in far southern Kentucky. This is as high only climb into the mid 70s (north) to low 80s (south). It`s going to feel a lot better around here. Skies will remain mostly sunny with some expected cumulus after early morning low level stratus and patchy fog burn off after sunrise. Tonight, with the same overall pattern, skies continue clearing into the night until becoming clear. Light northerly winds help lows fall into the mid 50s to low 60s. && .LONG TERM /THURSDAY NIGHT THROUGH TUESDAY/... Issued at 319 AM EDT Wed Jul 22 2026 Thursday and Friday, the same overall pattern continues. Upper ridging over the Western States and an upper trough over the Northeast will continue pushing the large surface high towards the Ohio Valley, keeping northeast winds across the CWA. This will limit highs to the upper 70s to mid 80s with dew points in the 50s and low 60s. By Friday night, the center of the surface high will pass, just to our north. Return flow begins advecting precipitable water values approaching 2" ahead of a shortwave flowing along the ridge. This is expected to increase rain chances into the day on Saturday. The best chances of precipitation is expected across southern Kentucky, but should be fairly uneventful with nothing severe. Temperatures start to climb, into the mid 80s on Saturday and the low 90s from Sunday into the first part of next week. Into next week, the overall pattern doesn`t change. Additional chances for precipitation will be introduced as waves work towards the Lower Ohio Valley on northwest flow, but nothing looks concerning. && .AVIATION /12Z TAFS THROUGH 18Z THURSDAY/... Issued at 754 AM EDT Wed Jul 22 2026 A mixture of IFR fog and low stratus impacting central and southern KY terminals will dissipate and lift through around 14z as a cold front finally departs to the south and drier air arrives. Thereafter, dry and VFR flight conditions are forecast through the remainder of the TAF period with light northerly to northeasterly winds. && .LMK WATCHES/WARNINGS/ADVISORIES... KY...None. IN...None. && $$ SHORT TERM...KDW LONG TERM...KDW AVIATION...WFO LSX