St. Matthews, Kentucky 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
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NWS Forecast for Saint Matthews KY
National Weather Service Forecast for:
Saint Matthews KY
Issued by: National Weather Service Louisville, KY |
Updated: 10:18 am EDT Jul 9, 2025 |
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Today
 Scattered T-storms
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Tonight
 Isolated T-storms then Partly Cloudy
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Thursday
 Scattered T-storms
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Thursday Night
 Scattered T-storms then Mostly Clear
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Friday
 Chance T-storms
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Friday Night
 Chance T-storms then Partly Cloudy
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Saturday
 Chance T-storms then Showers Likely
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Saturday Night
 Showers Likely then Chance T-storms
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Sunday
 Chance Showers then Chance T-storms
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Hi 87 °F |
Lo 71 °F |
Hi 90 °F |
Lo 71 °F |
Hi 91 °F |
Lo 73 °F |
Hi 93 °F |
Lo 72 °F |
Hi 90 °F |
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Hazardous Weather Outlook
Today
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Scattered showers and thunderstorms. Mostly cloudy, with a high near 87. Southwest wind 3 to 6 mph. Chance of precipitation is 40%. |
Tonight
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Isolated showers and thunderstorms before 9pm. Mostly cloudy, with a low around 71. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%. |
Thursday
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Isolated showers, then scattered showers and thunderstorms after 11am. Mostly sunny, with a high near 90. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 30%. |
Thursday Night
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Scattered showers and thunderstorms before 8pm. Mostly clear, with a low around 71. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. |
Friday
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A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 91. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 30%. |
Friday Night
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A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 73. |
Saturday
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A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 93. Chance of precipitation is 60%. |
Saturday Night
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Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 72. Chance of precipitation is 60%. |
Sunday
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A 40 percent chance of showers and thunderstorms after 8am. Mostly sunny, with a high near 90. |
Sunday Night
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A chance of thunderstorms before 8pm, then a slight chance of showers after 2am. Partly cloudy, with a low around 71. Chance of precipitation is 30%. |
Monday
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A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. |
Monday Night
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A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. |
Tuesday
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A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93. |
Forecast from NOAA-NWS
for Saint Matthews KY.
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Weather Forecast Discussion
912
FXUS63 KLMK 091447
AFDLMK
Area Forecast Discussion
National Weather Service Louisville KY
1047 AM EDT Wed Jul 9 2025
.KEY MESSAGES...
* Isolated to scattered showers and storms could produce locally
gusty winds and brief torrential rainfall today, mainly in the
afternoon.
* Warm and humid all week and into the weekend, with scattered
showers and thunderstorms expected each day. Organized severe
weather is not expected.
&&
.UPDATE...
Issued at 1047 AM EDT Wed Jul 9 2025
Scattered light rain or sprinkles are ongoing this morning as we
remain underneath a vort max associated with an upper shortwave.
Cloud cover has helped slow down the diurnal temp curve, with most
stations reporting in the upper 70s and low 80s at this hour. As a
result, expect temps to max out in the mid-80s for most. Scattered
showers and storms remain possible this afternoon, with marginal
CAPE but weak shear available. Higher PWATs are also expected,
potentially near 2 inches for some, so some heavy rainfall could be
possible for this afternoon. Expect the cloud cover to hold for the
day, which will help keep our temps a few degrees cooler today, and
possibly result in weaker destabilization. Overall forecast remains
in good shape, with just some minor tweaking to PoPs given the
current radar trends.
&&
.SHORT TERM /THROUGH TONIGHT/...
Issued at 403 AM EDT Wed Jul 9 2025
Mid level trough will slowly work across the Ohio Valley today with
an associated vort max crossing IN and central KY later this morning
and afternoon. At the sfc, a weak cold front will drop southeast
across IL/IN during the day into the evening. Good moisture
advection ahead of this feature will allow PWAT values to rise to
around 2.00" with a good amount of instability around 2000 J/kg in
the afternoon. All of this along with daytime heating and the muggy
airmass will allow for the development of isolated to scattered
showers and storms. While the best chance is during the afternoon,
we could see some shower/storm activity in the morning as the
shortwave trough and vort max start to work in from the west. It will
remain warm with highs in the mid/upper 80s and dew points near 70.
Once again the lack of shear will keep the activity sub severe with
torrential rainfall, lighting and possible gusty winds as the main
threat.
As the weakening boundary approaches from the northwest and the the
shortwave trough stalls over the Ohio Valley, we could see a few
lingering showers and thunderstorm overnight. Cloud cover will keep
lows in the upper 60s/low 70s.
&&
.LONG TERM /THURSDAY THROUGH TUESDAY/...
Issued at 403 AM EDT Wed Jul 9 2025
A secondary cold front will drop southward through the Ohio Valley
on Thursday. This boundary is associated with a sfc low that will be
working across the eastern Great Lakes and southern Ontario during
the day Thursday. Front is not expected to make it into our CWA but
we will see slightly drier air filter behind the passing trough axis
as PWAT values drop to around 1.50". While we remain in the warm and
muggy airmass, with continued diurnally driven showers and storms
both Thursday and Friday afternoon. Like the past several days, any
convection will remain unorganized and subsevere producing heavy
rainfall, lighting and potential gusty winds. Highs will also remain
warm in the upper 80s to low 90s.
A series of shortwaves troughs and a frontal boundary will work
across the Great Lakes and the Ohio Valley over the weekend. We will
continue to remain warm and muggy with highs in the upper 80s/low
90s both Saturday and Sunday with dew points in the lower 70s.
Shower and storm chances continue each afternoon with the peak of
daytime heating.
&&
.AVIATION /12Z TAFS THROUGH 18Z THURSDAY/...
Issued at 708 AM EDT Wed Jul 9 2025
Clouds associated with a mid-level trough is working across the Ohio
Valley. Most of the stratus is between 5-10K feet with scattered
clouds between 2500-3500 ft. There could be periods where we get
some brief periods of MVFR before we see the lower layer scatter out
more for more VFR flight categories. As this mid-level feature
approaches, we do increase the chance of showers and possible
thunderstorms through out the day with the best chance later this
afternoon. Went ahead and went with PROB30 for all TAF sites this
afternoon. For SDF/HNB a shower or storm can`t be ruled out this
morning but the probability is higher later today. Activity is
expected to diminish with the loss of daytime heating but a few
showers/storms are possible tonight with MVFR to IFR CIG and VIS
towards tomorrow morning for a few locations.
&&
.LMK WATCHES/WARNINGS/ADVISORIES...
KY...None.
IN...None.
&&
$$
UPDATE...CJP
SHORT TERM...BTN
LONG TERM...BTN
AVIATION...BTN
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