Lyndon, Kentucky 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

650
FXUS63 KLMK 051710
AFDLMK

Area Forecast Discussion
National Weather Service Louisville KY
110 PM EDT Sun Apr 5 2026

...Updated Aviation Discussion...

.KEY MESSAGES...

* Chilly Easter morning and cool high temperatures in the mid 50s to
  low 60s on Sunday.

* Cold nights ahead through Tuesday night. Frost potential for
  southern Indiana, northern Kentucky, and east central Kentucky
  each night.

* Dry conditions expected this week, with a trend to above normal
  temperatures Wednesday through Friday.

&&

.SHORT TERM /THROUGH TONIGHT/...
Issued at 240 AM EDT Sun Apr 5 2026

The cold front has pushed clean through our area at this hour,
although still getting some light rain east of the I-65 corridor
thanks to the right entrance region of the upper jet still lagging
back a bit. This feature will continue to slide eastward over the
next few hours, with fully dry conditions expected across our
eastern CWA by sunrise. Temperatures will continue to drop on steady
cold advection and partially clearing skies from the west. Minimum
temperatures later this morning are expected to settle into the 40-
45 degree range, so bundle up those little egg hunters. We`ll likely
fill in some sky cover by mid to late morning into the early
afternoon with some stratocu as low level lapse rates steepen and
take advantage of some comma head moisture wrapping in to our
northern CWA. Skies should trend mostly clear though as we head into
later afternoon and early evening. Highs will struggle under the
steady cool advection, and are only expected in the 56 to 61 degree
range for most, just a bit below normal for this time of year.

Surface high pressure starts to get more established over our region
tonight, but will still be centered to our west by sunrise Monday.
This could keep a bit of a gradient surface wind across our NE CWA,
but overall winds should still only be around 5 mph, with valleys
most likely fully decoupled. As a result, do expect some pretty
chilly overnight lows in the those decoupled valleys, likely in the
mid 30s. This will allow for some patchy/areas frost mention.
Elsewhere, lows in the upper 30s and light winds may be just enough
to prevent widespread frost formation. For now, will be messaging
patchy/areas valley frost for late tonight/early Monday morning.

&&

.LONG TERM /MONDAY THROUGH SATURDAY/...
Issued at 240 AM EDT Sun Apr 5 2026

Monday - Tuesday Night...

Dry and cool stretch of weather continues through the early week as
Canadian high pressure controls at the surface, and dry NW flow
aloft dominates the upper pattern. The main story here will be the
chances for frost/freeze headlines for north and NE portions of our
CWA each morning Monday thru Wednesday. Monday morning will likely
only feature some patchy frost chances in the far NE Bluegrass
counties. Tuesday and Wednesday mornings carry the highest
probabilities for some frost headlines at least from a temperature
standpoint, and lesser probabilities for a freeze. The big limiting
factor could be surface winds up around 5-10 mph both nights, and
perhaps a bit of sky cover on Tuesday night. Main focus is for
locations along and north of I-64 for this time period, but will
have to also keep sheltered valleys in mind outside of this
corridor. Could be a situation where sheltered valleys are able to
decouple, but widespread frost is not able to form due to the winds
being up a bit.

Afternoon highs will be around normal on Monday, and 5-10 degrees
below normal on Tuesday in the wake of a dry cool front. This will
be the coolest day of the forecast period.

Wednesday - Saturday...

The upper flow pattern becomes more zonal through mid and late week.
Meanwhile, the surface high will shift off the Atlantic Coast with
some return flow over our area on the back side. The continued dry
conditions and light southerly flow will allow for temp recovery
back above normal for Wednesday as highs reach mostly into the low
and mid 70s. For now, Thursday and Friday still look dry as a weak
frontal boundary sags nearby, but should stay just north. Meanwhile,
some upper ridging tries to get established over the SE CONUS. This
will allow temperatures to continue trending warmer with highs
solidly in the mid 70s on Thursday, and in the upper 70s and low 80s
on Friday. It is possible we may be able to go even warmer here. The
aforementioned frontal boundary may sag just enough south by
Saturday for some isolated shower or storm chances across southern
IN. Will have some isolated mention in for this time period, but
overall looks to be another warm and mostly dry day for folks,
especially south of the Ohio River.

&&

.AVIATION /18Z TAFS THROUGH 00Z TUESDAY/...
Issued at 110 PM EDT Sun Apr 5 2026

VFR conditions are ongoing across the region, with breezy NW winds
and SCT cu around 4k ft. Expect the winds to subside and the diurnal
cu to decrease by this evening. VFR continue tonight with SKC and
lighter winds. Pleasant conditions will prevail tomorrow too.

&&

.LMK WATCHES/WARNINGS/ADVISORIES...
KY...None.
IN...None.

&&

$$

SHORT TERM...BJS
LONG TERM...BJS
AVIATION...CJP