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Frankfort, Kentucky 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Frankfort KY
National Weather Service Forecast for: Frankfort KY
Issued by: National Weather Service Louisville, KY
Updated: 6:15 pm EDT Aug 14, 2025
 
Tonight

Tonight: Patchy fog after 4am.  Otherwise, partly cloudy, with a low around 69. Calm wind.
Partly Cloudy
then Patchy
Fog
Friday

Friday: Patchy fog before 9am.  Otherwise, mostly sunny and hot, with a high near 94. Heat index values as high as 101. Calm wind.
Patchy Fog
then Mostly
Sunny
Friday
Night
Friday Night: Mostly clear, with a low around 70. Calm wind.
Mostly Clear

Saturday

Saturday: Sunny and hot, with a high near 96. Heat index values as high as 105. Calm wind.
Hot

Saturday
Night
Saturday Night: Mostly clear, with a low around 71. Calm wind.
Mostly Clear

Sunday

Sunday: Sunny and hot, with a high near 98.
Hot

Sunday
Night
Sunday Night: Mostly clear, with a low around 73.
Mostly Clear

Monday

Monday: Sunny and hot, with a high near 98.
Hot

Monday
Night
Monday Night: Mostly clear, with a low around 72.
Mostly Clear

Lo 69 °F Hi 94 °F Lo 70 °F Hi 96 °F Lo 71 °F Hi 98 °F Lo 73 °F Hi 98 °F Lo 72 °F

Hazardous Weather Outlook
 

Tonight
 
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 69. Calm wind.
Friday
 
Patchy fog before 9am. Otherwise, mostly sunny and hot, with a high near 94. Heat index values as high as 101. Calm wind.
Friday Night
 
Mostly clear, with a low around 70. Calm wind.
Saturday
 
Sunny and hot, with a high near 96. Heat index values as high as 105. Calm wind.
Saturday Night
 
Mostly clear, with a low around 71. Calm wind.
Sunday
 
Sunny and hot, with a high near 98.
Sunday Night
 
Mostly clear, with a low around 73.
Monday
 
Sunny and hot, with a high near 98.
Monday Night
 
Mostly clear, with a low around 72.
Tuesday
 
A 20 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 98.
Tuesday Night
 
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 71.
Wednesday
 
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Wednesday Night
 
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Thursday
 
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.

 

Forecast from NOAA-NWS for Frankfort KY.

Weather Forecast Discussion
310
FXUS63 KLMK 142314
AFDLMK

Area Forecast Discussion
National Weather Service Louisville KY
714 PM EDT Thu Aug 14 2025

...Updated Aviation Discussion...

.KEY MESSAGES...

* Few isolated to scattered showers and storms this afternoon and
  evening with frequent lightning, locally heavy rainfall and gusty
  winds.

* Hot and humid weather pattern starts tomorrow and continues
  through the weekend, into early next week, with highs into the mid
  90s and heat index values around 100 degrees.

* Monday and Tuesday could be approaching Heat Advisory criteria as
  heat index values both days are around 105 degrees with high
  temperatures in the mid/upper 90s.

&&

.SHORT TERM /THROUGH FRIDAY/...
Issued at 327 PM EDT Thu Aug 14 2025

Weak sfc boundary continues to be draped across central KY this
afternoon with weak sfc convergence to the south helping to
initiate isolated showers and thunderstorms. While a rogue
shower/storm is still possible along and north of the boundary, most
of the activity will remain across the southern half of Kentucky.
Heavy rainfall with PWAT values between 1.7 to 1.9, frequent
lightning and gusty winds will be the main impacts from any storms
we see this afternoon and early evening. Like the past couple of
days, once we lose the daytime heating, most if not all of the
activity will start to dissipate. Overnight, skies will range from
partly cloudy to mostly clear, and with light winds, areas of patchy
dense fog is once again a possibility, especially in valleys and
other low lying areas. Overnight lights will range from the
mid/upper 60s across the Bluegrass and Lake Cumberland region to the
low 70s further to the west.

By tomorrow, the sfc boundary should be stalled to our south as
strong upper-level ridging over the central Plains and Mississippi
Valley begins to become more amplified and expanding into the Ohio
Valley. The increase heights will start the beginning of a stretch
of hot, above normal temperatures that goes into the weekend and
early next week. Friday looks to be mainly dry, but can`t completely
rule out an isolated shower/storm but confidence is low. Most will
see highs around 90 to even the low 90s during the afternoon.

&&

.LONG TERM /FRIDAY NIGHT THROUGH THURSDAY/...
Issued at 327 PM EDT Thu Aug 14 2025

The story for the weekend will be a return to hot summer
temperatures with afternoon high temperatures climbing into the mid
90s with heat index values in the low triple digits due to dewpoints
around 70. Strong, amplified ridging over central Plains into the
Mississippi Valley will be the reason for the heat and that heat
will continue into early next week. In fact, Monday and Tuesday
could be hotter with highs in the mid 90s but with heat index values
approaching Heat Advisory levels around 105 each day.

The upper level ridge starts to shift back to the west by midweek as
Erin starts to turn northward over the Atlantic towards Bermuda.
This could be the wild card in the overall forecast but for now, as
Erin makes the turn northward, a weak shortwave trough will work
over the top of the ridge and through the Great Lakes Wednesday and
Thursday. This will drop a cold front southward into the area
bringing slightly cooler temperatures for the end of the week and a
return of daily scattered to isolated showers and thunderstorms.

&&

.AVIATION /00Z TAFS THROUGH 06Z SATURDAY/...
Issued at 714 PM EDT Thu Aug 14 2025

A few scattered showers will continue across the region through
sunset and dissipate.  Skies overnight will become clear with light
winds.  Should be another night of patchy fog across the region.
KBWG picked up a decent amount of rainfall this afternoon and could
fog up pretty good overnight.  For now will keep things down to
about 2SM down there.  Elsewhere, MVFR vsbys are expected overnight
with KHNB likely dropping back down to 1/4SM between 15/08-15/12Z.
The outlook for Friday calls for VFR conditions across the region
with light winds.

&&

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

&&

$$

SHORT TERM...BTN
LONG TERM....BTN
AVIATION.....MJ
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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