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Somerset, Kentucky 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Somerset KY
National Weather Service Forecast for: Somerset KY
Issued by: National Weather Service Jackson, KY
Updated: 10:06 am EDT Jun 8, 2026
 
This
Afternoon
This Afternoon: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm.  High near 80. South wind around 7 mph.  Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
T-storms

Tonight

Tonight: Showers and thunderstorms likely before 2am, then a slight chance of showers and thunderstorms after 5am.  Cloudy, then gradually becoming partly cloudy, with a low around 67. South wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Showers
Likely then
Slight Chance
T-storms
Tuesday

Tuesday: Showers and thunderstorms, mainly before 4pm.  High near 83. Southwest wind 6 to 11 mph, with gusts as high as 17 mph.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Showers then
T-storms
Likely
Tuesday
Night
Tuesday Night: Showers and thunderstorms likely, mainly before 7pm.  Mostly cloudy, with a low around 70. South southwest wind around 6 mph.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
T-storms
Likely then
Chance
Showers
Wednesday

Wednesday: Showers likely and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms, mainly between 11am and 5pm.  Mostly sunny, with a high near 87. Southwest wind 6 to 10 mph, with gusts as high as 16 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Showers
Likely then
Chance
T-storms
Wednesday
Night
Wednesday Night: A 10 percent chance of showers and thunderstorms before 8pm.  Mostly clear, with a low around 71.
Slight Chance
T-storms then
Mostly Clear
Thursday

Thursday: A 40 percent chance of showers and thunderstorms, mainly after noon.  Mostly sunny, with a high near 89.
Chance
T-storms

Thursday
Night
Thursday Night: A 40 percent chance of showers and thunderstorms, mainly after 2am.  Partly cloudy, with a low around 71.
Chance
T-storms then
Chance
Showers
Friday

Friday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm.  Partly sunny, with a high near 87. Chance of precipitation is 70%.
Chance
Showers then
Showers
Likely
Hi 80 °F Lo 67 °F Hi 83 °F Lo 70 °F Hi 87 °F Lo 71 °F Hi 89 °F Lo 71 °F Hi 87 °F

Hazardous Weather Outlook
 

This Afternoon
 
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 80. South wind around 7 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
 
Showers and thunderstorms likely before 2am, then a slight chance of showers and thunderstorms after 5am. Cloudy, then gradually becoming partly cloudy, with a low around 67. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
 
Showers and thunderstorms, mainly before 4pm. High near 83. Southwest wind 6 to 11 mph, with gusts as high as 17 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
 
Showers and thunderstorms likely, mainly before 7pm. Mostly cloudy, with a low around 70. South southwest wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
 
Showers likely and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms, mainly between 11am and 5pm. Mostly sunny, with a high near 87. Southwest wind 6 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
 
A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 71.
Thursday
 
A 40 percent chance of showers and thunderstorms, mainly after noon. Mostly sunny, with a high near 89.
Thursday Night
 
A 40 percent chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 71.
Friday
 
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 87. Chance of precipitation is 70%.
Friday Night
 
Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers after 2am. Partly cloudy, with a low around 68. Chance of precipitation is 60%.
Saturday
 
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Saturday Night
 
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Sunday
 
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 86. Chance of precipitation is 60%.

 

Forecast from NOAA-NWS for Somerset KY.

Weather Forecast Discussion
368
FXUS63 KJKL 081428 AAB
AFDJKL

AREA FORECAST DISCUSSION...UPDATED
National Weather Service Jackson KY
1028 AM EDT Mon Jun 8 2026

.KEY MESSAGES...

- Daily chances for showers and thunderstorms persist across the
  entire area throughout the week.

- The greatest rain chances are today through Wednesday and again
  Friday. The potential for multiple rounds of locally heavy
  rainfall poses a risk for isolated flooding in this time frame.

- Warm and rather humid conditions are expected.

&&

.UPDATE...
Issued at 1028 AM EDT MON JUN 8 2026

Minor adjustments were made based on recent observation and radar
trends. This led to slowing down the pop increase in the southwest
portion of the area near Lake Cumberland a couple of hours before
the next band of convection to the west and southwest moves in.

UPDATE Issued at 800 AM EDT MON JUN 8 2026

Clouds are thickening and lowering across eastern Kentucky at
update time as radar shows a band of light rain with trailing
clusters of showers and thunderstorms is lifting northeastward
across Central Kentucky and Middle Tennessee. The rain should
reach the Lake Cumberland area within a couple of hours. However,
a stray shower or storm cannot be entirely ruled out ahead of the
main band of rain as there is sufficient MUCAPE. It is looking to
be a fairly wet day for much of the Cumberland River Basin. Rain
chances are slower to arrive with northeastward extent such that
the Big Sandy Basin should see mainly dry conditions until late
afternoon or early evening.

&&

.SHORT TERM...(Today through Tuesday)
Issued at 436 AM EDT MON JUN 8 2026

Partly cloudy skies are found across eastern Kentucky this morning
while temperatures range from the lower to mid 60s in the cooler
valleys to the lower 70s over the thermal belt ridges. Regional
radar imagery has shown isolated convection earlier this morning
through south-central Ohio and adjoining West Virginia associated
with a stalled cold frontal boundary located under the stabilizing
influence of a high amplitude ridge. That ridge extends from the
Southeast US northward across the Great Lakes to near James Bay.
Upstream showers are noted from the mid-Tennessee Valley
northwestward into the Upper Midwest. This activity is associated
with a 500 hPa shortwave trough extending from Minnesota
southward to Missouri and Arkansas. A broad area of 2-plus inch
PWATs is advecting northward up the Mississippi Valley and over
western Kentucky and Tennessee ahead of this trough.

The upper level ridge will gradually shift east today and begin to
break down tonight as the 500 hPa shortwave troughing presses
eastward to over the Great Lakes and Ohio Valley by Tuesday. HREF
and LREF mean PWATs rise to near 2.0 inches later today and
tonight over eastern Kentucky; however, the most favorable
combination of weak upper level forcing, instability, and low-
level moisture convergence with this feature will likely stay west
and north of the JKL CWA. The initial leading band of showers and
embedded thunderstorms, forced by a modest vorticity lobe, is
slated to reach the Lake Cumberland area around 13Z to 15Z but
will struggle to hold together and press eastward into the
lingering upper level ridging and drier air over the Central
Appalachians. In fact, it could very well be 21Z or later before
any notable precipitation chances reach the Big Sandy Basin.
Given recent dry weather, flash flood guidance (FFG) is robust,
generally greater than 2 inches in 1 hour and 2.5 inches in 3
hours. So while the high PWATs and deep warm cloud layer are
likely to support torrential downpours, limited forcing and
antecedent dry conditions should mitigate any notable hydro issues
today. An overall lull in the precipitation is likely tonight as
forcing shifts east and instability wanes. Another vort max
crosses the area on Tuesday and will interact with the juicy air
mass which by that time will be more firmly in place over the
entire CWA. This combined with renewed diurnal destabilization
will bring better rain chances (likely to categorical) area-wide.
Through 00z Wednesday, the 25th to 75th percentiles of the HREF
would support highly variable rainfall amounts of generally 0.1 to
1.5 inches of rain in the Big Sandy Basin to 0.5 to 2.0 inches
near Lake Cumberland. However, much higher localized amounts are
possible under the strongest and most persistent convective cores.
The latest HREF continues to favor the Cumberland River Basin as
the most likely portion of our area to pick up localized rainfall
amounts in excess of 2 inches. Weak flow today will limit the
overall severe threat. Shear increases slightly on Tuesday,
perhaps leading to more organized multicell thunderstorm
structures, though any severe threat would still remain low.

In sensible weather terms, clouds will thicken from the southwest
today with the first threat of showers arriving in the Lake
Cumberland area this morning and slowly spreading east into the
US-23 corridor by late afternoon or early evening. A few
thunderstorms cannot be ruled out. It won`t be a washout for most
locations. In fact, it will still be quite hot over the eastern
half of the CWA with some of the communities in the Levisa and Tug
Fork valleys nearing 90F. Cooler daily max readings in the upper
70s to lower 80s can be expected near and west of I-75 where
clouds and showers move in sooner. Showers diminish the first
half of tonight, leaving a quiet second half for most. It will be
muggy and mild with lows in the 60s. For Tuesday, showers and
thunderstorms should become numerous to widespread again during
the late morning and afternoon. It will also be cooler for most
of the area with highs mainly in the lower to middle 80s but with
muggy dew points near 70F.

.LONG TERM...(After midnight Tuesday night through Sunday)
Issued at 617 AM EDT MON JUN 8 2026

The period is expected to begin with an upper level ridge
extending from the Southeast coast into Quebec, with another upper
level ridge centered in the ArkLaTex region. In between these
features, a slow moving trough should initially extend from the
Great Lakes region into the Ohio Valley and Tennessee Valley.
Further west, an upper level trough will occupy the western CONUS.
At the surface, a front will be draped down from a surface low in
the Great Lakes region and reach into the Southern Appalachians,
with the boundary extending through far Eastern Kentucky. With
southerly to southwesterly winds across the forecast area,
continuous moisture advection will support dewpoints in the upper
60s to low 70s, with ample deep moisture in place. 12Z LREF mean
PWATs generally range from 1.7 to 1.9 inches at the start of the
period, representing the 99th percentile compared to climatology
in most of eastern Kentucky. In essence, this pattern will support
an extremely moist environment.

Overnight on Tuesday, the upper level ridge over the Southeast
will translate east towards the Atlantic, while the trough axis
over the Great Lakes will push east into the Appalachians,
including eastern Kentucky. An embedded shortwave could provide an
additional source of lift for rain overnight into Wednesday,
although guidance disagrees on the exact timing and structure of
this feature, with the GFS being the most bullish in showing a
highly enhanced region of vorticity associated with an MCS pushing
into our northern counties. In contrast, other models such as the
ECMWF show a more subtle impulse, with a weaker and less focused
area of vorticity advection aloft, although the signal for an MCS
is still present in many models. With an anomalously moist air
mass in place, rain chances will continue into Wednesday, with the
highest confidence over the northern portion of our forecast
area. Given slow storm motions and this deep moisture, any area
that receives multiple rounds of heavy rain could experience
localized flooding, with increased flooding concerns if the MCS
solution verifies. Should our area end up on the upshear side of
an MCS, training cells could dump torrential rainfall on the
northern half of the forecast area, although this remains a low
confidence outcome at this time. For now, WPC has maintained a
Marginal Risk for Excessive Rainfall on Day 2.

Wednesday night, the upper trough axis gradually shifts east of
the forecast area. A shortwave ridge will induce a brief period of
height rises, with a corresponding lull in convective activity
expected. Also during this period, the upper level trough
originally over the western CONUS will continue to translate east,
eventually moving over the central CONUS by Thursday, with a
shortwave axis over the Great Lakes to the mid Mississippi Valley.
Although total moisture in the column will decrease somewhat as
the ridge axis shifts across the area, with PW dropping back to
the 1.5 to 1.7 inch range (90-95th percentile) per the 12Z LREF,
surface dewpoints will still remain in the upper 60s to low 70s.
Rain chances Thursday will remain dependent on the progression of
the upper level ridge and the eastward movement of the
aforementioned shortwave trough, with isolated to scattered
showers and storms most likely during peak heating on Thursday and
perhaps Thursday night depending on the timing of the approaching
shortwave and associated frontal zone.

Looking ahead to the weekend, guidance has the shortwave trough
crossing the Great Lakes and Ohio Valley, including eastern
Kentucky, on Friday afternoon into Friday evening. This will bring
another round of rain to our area. Spread remains high going into
the weekend, with the general pattern showing ridging centered in
the Southwest and into Mexico. Broad upper level troughing will
sit over the northern CONUS, with a closed upper level low
meandering over Canada. Notably, recent guidance has generally
trended further south with this upper level trough; however,
models fully diverge on the progression of this trough by Sunday,
and there is still low model-to-model and run-to-run consistency
in the upper level pattern for the weekend at this time.
Regardless, overall, warm and humid weather should persist across
the region with chances for convection generally peaking each
afternoon and evening.

&&

.AVIATION...(For the 12Z TAFS through 12Z Tuesday morning)
ISSUED AT 800 AM EDT MON JUN 8 2026

VFR conditions prevailed across the JKL CWA east of I-75 at TAF
issuance but were MVFR at SME due to ceilings. The lower end
VFR/MVFR ceilings will gradually move from southwest to northeast
through the morning and afternoon hours as a slow-moving storm
system approaches in from Mid-Mississippi Valley. Shower/storm
chances increase starting with the southwestern terminals through
the morning and then further northeast during the afternoon hours.
This activity is poised to reduce flight categories to solidly
MVFR or even IFR at times. The convection should gradually
diminish to just isolated activity between 3-7Z. Expect light and
variable winds to persist.

&&

.JKL WATCHES/WARNINGS/ADVISORIES...
None.

&&

$$

UPDATE...JP
SHORT TERM...GEERTSON
LONG TERM...FAGAN/JP
AVIATION...GEERTSON
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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