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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: 4:11 am EST Nov 28, 2025
 
Today

Today: Sunny, with a high near 39. West northwest wind 6 to 10 mph, with gusts as high as 15 mph.
Sunny

Tonight

Tonight: Increasing clouds, with a low around 17. Light and variable wind.
Increasing
Clouds
Saturday

Saturday: Partly sunny, with a high near 47. Calm wind becoming south southeast 5 to 7 mph in the morning.
Partly Sunny

Saturday
Night
Saturday Night: Rain.  Low around 39. South wind 8 to 14 mph, with gusts as high as 21 mph.  Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Rain Likely
then Rain
Sunday

Sunday: A 50 percent chance of rain before 1pm.  Cloudy, with a temperature rising to near 41 by 8am, then falling to around 33 during the remainder of the day. South southwest wind 10 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 18 mph.  New precipitation amounts of less than a tenth of an inch possible.
Chance Rain

Sunday
Night
Sunday Night: Mostly cloudy, with a low around 22.
Mostly Cloudy

Monday

Monday: Partly sunny, with a high near 42.
Partly Sunny

Monday
Night
Monday Night: Rain likely, mainly after 1am.  Mostly cloudy, with a low around 28. Chance of precipitation is 60%.
Chance Rain
then Rain
Likely
Tuesday

Tuesday: A 50 percent chance of rain.  Mostly cloudy, with a high near 39.
Chance Rain

Hi 39 °F Lo 17 °F Hi 47 °F Lo 39 °F Hi 41 °F Lo 22 °F Hi 42 °F Lo 28 °F Hi 39 °F

 

Today
 
Sunny, with a high near 39. West northwest wind 6 to 10 mph, with gusts as high as 15 mph.
Tonight
 
Increasing clouds, with a low around 17. Light and variable wind.
Saturday
 
Partly sunny, with a high near 47. Calm wind becoming south southeast 5 to 7 mph in the morning.
Saturday Night
 
Rain. Low around 39. South wind 8 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
 
A 50 percent chance of rain before 1pm. Cloudy, with a temperature rising to near 41 by 8am, then falling to around 33 during the remainder of the day. South southwest wind 10 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 18 mph. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
 
Mostly cloudy, with a low around 22.
Monday
 
Partly sunny, with a high near 42.
Monday Night
 
Rain likely, mainly after 1am. Mostly cloudy, with a low around 28. Chance of precipitation is 60%.
Tuesday
 
A 50 percent chance of rain. Mostly cloudy, with a high near 39.
Tuesday Night
 
Mostly cloudy, with a low around 22.
Wednesday
 
Mostly sunny, with a high near 43.
Wednesday Night
 
Partly cloudy, with a low around 26.
Thursday
 
Partly sunny, with a high near 45.

 

Forecast from NOAA-NWS for Somerset KY.

Weather Forecast Discussion
129
FXUS63 KJKL 280450
AFDJKL

AREA FORECAST DISCUSSION
National Weather Service Jackson KY
1150 PM EST Thu Nov 27 2025

.KEY MESSAGES...

- A cold and drier airmass will settle into the region through
  Black Friday.

- There is still considerable uncertainty in the forecast for the
  early to middle part of next week. Some wintry precipitation is
  possible during the Monday night through Tuesday night period.

&&

.UPDATE...
Issued at 1150 PM EST THU NOV 27 2025

Adjusted sky grids for remaining cloud cover across the far
eastern part of the CWA, which should clear out over the next few
hours. Also refreshed the diurnal temperature curve by importing
the latest observational data from around the region. The forecast
remains on track with only minor tweaks being made.

UPDATE Issued at 825 PM EST THU NOV 27 2025

Tweaked sky grids to reflect current satellite trends. Also
ingested latest wind and temperature observations and recalculated
diurnal trend for overnight low. Otherwise, the forecast remains
on track.

UPDATE Issued at 538 PM EST THU NOV 27 2025

Late afternoon update is out with minor updates to the Sky grids
based on latest satellite trends. Otherwise, the forecast is on
track.

&&

.SHORT TERM...(This evening through Friday night)
Issued at 225 PM EST THU NOV 27 2025

19Z sfc analysis shows eastern Kentucky between two systems this
afternoon with a deep low off to the northeast while chilly high
pressure is found to the west of the state. This has continued
west to northwest winds for the area at 10 to 15 mph bringing in
more cold air. Accordingly, despite the breakout of sunshine over
much of this part of the state by late morning, temperatures are
struggling to climb very far up through the 30s with readings
ranging from the lower 30s northwest to around 40 in the southern
parts of the Cumberland Valley. Meanwhile, dewpoints are running
in the upper teens to lower 20s.

The models, and their individual ensemble suites, are still in
pretty good agreement aloft through the short term portion of the
forecast. They all depict fairly deep troughing over the Great
Lakes stretched south to the Gulf Coast this afternoon. Two
streams of mid level flow are carrying their impulses through the
region - one north near the Lakes and another through the Deep
South. As the parent trough slips east tonight more energy will
push south into western parts of the state on northwest flow. This
stream quickly shifts northeast out of Kentucky by midday Friday
as the mid level flow starts to flatten and the overall pattern
relaxes. Later that night, the flow becomes more zonal, but still
rather fast. Meanwhile, more energy starts to consolidate upstream
over the Rockies temporarily tilting the 5h flow over Kentucky to
the west southwest by Saturday morning. The still pretty small
spread among the models supported using the NBM as the starting
point of the forecast grids with minimal adjustments needed -
mainly to include more terrain distinction for temperatures
tonight, and again Friday night, enhancing ridge to valley
differences.

Sensible weather features dry and cold air passing through the
region tonight and Friday as high pressure moves east across the
state. This will mean a very cold night is on tap along with some
extra, and quicker, cooling in the valley locations as the
boundary layer decouples toward sunset. Friday will still be quite
chilly owing to the very cold start - despite more sunshine and
the winds lighter from the northwest. Then, Friday night, we will
see deep low pressure and the next system`s warm front lifting
this way from the west. This starts to bring in more moisture late
- and still some ridge to valley temperature differences into
Saturday morning.

The changes to the NBM starting point were primarily focused on
adding in more details for the temperatures tonight in order to
include some ridge to valley distinctions and again for Friday
night. As for PoPs, kept them in the single digits or zero through
Friday night for eastern Kentucky, in line with guidance.

.LONG TERM...(Saturday through Thursday)
Issued at 141 PM EST THU NOV 27 2025

After a chilly start to the day Saturday, temperatures slowly
moderate upwards under increasing warm advection, especially late in
the day with the passage of a warm front on the leading edge of the
next system approaching the area. The initial surge of moisture
aloft will be moving over a dry low-level air mass, which may
support some initial p-type concerns as the atmospheric column cools
via evaporation, though any snow that may fall will not cause any
accumulations or impacts outside of a possible dusting on the tops
of the higher mountains along the Virginia border. As the warm front
moves through and warm advection ushers in increasing moisture
through the lower levels, any possible frozen precipitation will
quickly change to all rain for the remainder of Saturday night into
the morning hours Sunday. As the cold front moves through, strong
cold advection on the backside of the system may allow for snow
showers with no expected impacts outside of very light accumulations
over the high terrain near the Virginia border.

After a brief lull late Sunday night into Monday with the passage of
a progressive and weakening surface ridge, attention turns to a
large-scale yet progressive upper trough moving east across the
country and progged to impact our area from Monday night through
early Wednesday. There remains considerable uncertainty with regards
to the evolution of this system, or systems, as operational models
suggest two separate shortwaves (northern and southern) within the
large-scale trough, which may or may not be in sync as they approach
our area, which would impact precipitation amounts over eastern
Kentucky. Additionally, there is uncertainty with regards to
temperatures and critical thicknesses which will have a significant
impact on where potential wintry precipitation occurs within the
Eastern Kentucky region. The most recent set of operational models
suggest an overall warming trend which would suggest less wintry
precipitation across the area late Monday night into Tuesday, but
this is not shown with this forecast package which utilizes the NBM
incorporating older model runs from last evening.

Depending on how the system evolves, cold advection snow showers are
again possible on the back end Tuesday night into early Wednesday
morning, with the potential for light accumulations especially over
the high terrain, with dry weather most likely returning Wednesday
into Wednesday night.

&&

.AVIATION...(For the 06Z TAFS through 06Z Saturday night)
ISSUED AT 1150PM EST THU NOV 27 2025

VFR conditions will prevail through the TAF window. Some cloud
cover may continue to effect KSJS and occasionally KSYM with a
SCT to OVC040 deck, otherwise SKC conditions are expected
everywhere. Winds will be light out of the west and remain so
until 14Z Friday where mixing will occasionally produce gusts
approaching 20 kts. Winds then diminish, generally after 20Z,
becoming light and variable heading toward 06Z Saturday.

&&

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

&&

$$

UPDATE...GINNICK
SHORT TERM...GREIF
LONG TERM...CMC
AVIATION...GINNICK
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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