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Somerset, Kentucky 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
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NWS Forecast for Somerset KY
National Weather Service Forecast for:
Somerset KY
Issued by: National Weather Service Jackson, KY |
| Updated: 3:57 pm EDT May 9, 2026 |
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Tonight
 Mostly Clear
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Sunday
 Sunny then Slight Chance T-storms
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Sunday Night
 Chance Showers
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Monday
 Gradual Clearing
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Monday Night
 Clear
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Tuesday
 Sunny
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Tuesday Night
 Mostly Clear then Slight Chance Showers
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Wednesday
 Chance Showers then Chance T-storms and Breezy
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Wednesday Night
 Chance T-storms then Clear
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| Lo 51 °F |
Hi 80 °F |
Lo 51 °F |
Hi 69 °F |
Lo 41 °F |
Hi 73 °F |
Lo 51 °F |
Hi 75 °F |
Lo 46 °F |
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Tonight
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Mostly clear, with a low around 51. West wind 5 to 8 mph becoming calm in the evening. |
Sunday
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A slight chance of showers and thunderstorms between 2pm and 4pm. Sunny, with a high near 80. Calm wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 20%. |
Sunday Night
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A 40 percent chance of showers and thunderstorms, mainly after 2am. Increasing clouds, with a low around 51. North northeast wind 6 to 8 mph. |
Monday
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Cloudy through mid morning, then gradual clearing, with a high near 69. North northeast wind 7 to 10 mph, with gusts as high as 15 mph. |
Monday Night
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Clear, with a low around 41. North wind around 6 mph becoming calm in the evening. |
Tuesday
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Sunny, with a high near 73. |
Tuesday Night
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A 20 percent chance of showers after 2am. Mostly clear, with a low around 51. |
Wednesday
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A chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 75. Breezy. Chance of precipitation is 40%. |
Wednesday Night
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A chance of thunderstorms before 8pm. Mostly clear, with a low around 46. Chance of precipitation is 30%. |
Thursday
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Sunny, with a high near 70. |
Thursday Night
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Mostly clear, with a low around 46. |
Friday
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Mostly sunny, with a high near 77. |
Friday Night
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Mostly clear, with a low around 54. |
Saturday
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Mostly sunny, with a high near 84. |
Forecast from NOAA-NWS
for Somerset KY.
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Weather Forecast Discussion
751
FXUS63 KJKL 091916
AFDJKL
AREA FORECAST DISCUSSION
National Weather Service Jackson KY
316 PM EDT Sat May 9 2026
.KEY MESSAGES...
- Chances for showers and a few thunderstorms increase to end the
weekend, followed by additional chances at midweek.
- Frost is possible late Monday night into Tuesday morning in
deeper valleys and hollows - mainly away from mainstem rivers.
&&
.SHORT TERM...(This evening through Sunday night)
Issued at 316 PM EDT SAT MAY 9 2026
At 18Z mid and high level clouds still remain across the area, from
morning drizzle. These persistent clouds have obstructed the sky and
hindered daytime heating. As a result temperatures remain in the mid
to upper 60s across the area and likely wont reach the mid to upper
70s previously forecasted. Forecasted high temperatures have been
adjusted downward using the 25th percentile of the NBM to get upper
60s to low 70s in the forecast.
As a surface low works up towards Hudson Bay, the systems surface
cold front will progress southeast through the Ohio Valley tonight,
and is expected to sit just west of the CWA by Sunday morning. Light
southwesterly winds may become light and variable overnight, before
winds veer to a westerly direction Sunday. This evening, with clouds
anticipated to clear out and winds slacking overnight, valleys and
hollows are expected to decouple heading into the overnight hours.
This would lead to temperatures dropping into the mid to upper 40s
in coldest sheltered valleys while remaining in the low to mid 50s
along ride tops.
Sunday, with a cold front passing through the area during the day,
and a few shortwaves embedded in the flow aloft, some modest CAPE
(1400 J/kg)could kick off some thunderstorms along the frontal
passage during the afternoon. These storms are not expected to be
severe Temperatures are forecasted to warm into the upper 70s and
low 80s, ahead of the frontal passage before winds become northerly
ushering in some CAA heading into the evening. With overcast and
showers occurring across the area overnight, temperatures remain
elevated, generally in the low 50s.
.LONG TERM...(Monday through Saturday)
Issued at 220 PM EDT SAT MAY 9 2026
The period begins Monday morning with a secondary cold front
accompanied by showers exiting south and east as a shortwave trough
moves across the area within an overall broad longwave trough.
A cooler and drier air mass moves into the region from the north as
high pressure builds in for the remainder of the daytime hours
Monday. Though models have trended slightly warmer than 24 hours,
Monday looks to be on the cool side with highs in the mid to upper
60s. Monday night is still looking rather chilly for mid-May as
surface pressure settles in over Ohio. Big questions remain as to
how much low-level dry air can move into the area and whether winds
fully decouple near ridgetop level. A slightly drier air mass with
full decoupling will introduce the possibility of patchy frost in
the outlying hollows away from mainstem streams and rivers, which
are more likely to see the typical fog in such setups.
A modest warm-up is expected Tuesday as shortwave ridging moves
overhead in northwesterly flow aloft, but unsettled weather returns
Wednesday with the passage of a cold front. Instability will be
rapidly diminishing as this system moves through, so while thunder
chances are in the forecast currently, would not be surprised to see
this reduced to just showers in future forecasts.
After another brief modest cooldown Thursday, heights/thicknesses
rise significantly Friday into Saturday, signaling a stronger warm-
up into next weekend. Though there are significant model
discrepancies yielding low confidence in the forecast details by
this time, low-end PoPs around 10 to 15 percent are indicated by the
NBM as models hint at a potential disturbance and/or front near the
area with some potential instability.
&&
.AVIATION...(For the 18Z TAFS through 18Z Sunday afternoon)
ISSUED AT 144 PM EDT SAT MAY 9 2026
A mix of mid and high level clouds have led to some spots seeing
MVFR ceilings. Otherwise, VFR conditions will prevail through the
TAF period. Winds will be light and variable or from the
southwest through 14-15Z before becoming more westerly at 10KT or
less through the last few hours of the TAF period.
&&
.JKL WATCHES/WARNINGS/ADVISORIES...
None.
&&
$$
SHORT TERM...GINNICK
LONG TERM...CMC
AVIATION...GINNICK
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