Marine Weather and Tide Forecast for Cynthiana, OH
 | Sunrise 6:45 AM Sunset 8:15 PM Moonrise 8:42 AM Moonset 12:00 AM |
Marine Forecasts
NOTE: Zones updated 4/16/2026. Some zones changed. Use Edit if needed.
7 Day Forecast for Marine Location Near Cynthiana, OH
NEW! Add second zone forecast
FXUS61 KILN 211305 AFDILN
Area Forecast Discussion National Weather Service Wilmington OH 905 AM EDT Tue Apr 21 2026
WHAT HAS CHANGED
Cancelled freeze warning and frost advisory for this morning.
KEY MESSAGES
1) Breezy and warmer conditions today.
2) Multiple systems will bring showers and a chance of thunderstorms to the region at times through the end of the week.
DISCUSSION
KEY MESSAGE 1)
Surface high pressure will move off to the east today, leading to a tightening pressure gradient across our area. As a result, breezy conditions will develop today and with decent mixing, some wind gusts in the 25 to 35 mph range can be expected this afternoon. With the good mixing, have also made some downward adjustments to dewpoints this afternoon, leading to afternoon RHs in the 25 to 35 percent range. In the developing WAA, highs today will be in the mid 70s.
KEY MESSAGE 2)
A weak mid level short wave will move through the Ohio Valley tonight into Wednesday as a weak frontal boundary sags south into our area. This will lead to scattered showers, and with some weak elevated instabilities developing, a few embedded thunderstorms will also be possible.
Mid level ridging will shift east across the Ohio Valley on Thursday before a somewhat stronger mid level short wave lifts northeast across our region Friday into Saturday. This will lead to additional chances for showers and thunderstorms through the end of the week.
AVIATION /13Z TUESDAY THROUGH SATURDAY/
A tightening pressure gradient will lead to increasing southwest winds today with gusts to around 30 knots possible at times this afternoon. With a dry airmass currently in place across the area, VFR conditions will prevail into this evening. However, a frontal boundary dropping down from the north will lead to increasing clouds and a developing chance for showers overnight into Wednesday morning.
Some marginal LLWS will also be possible overnight. As the low levels moisten up, some MVFR cigs will develop late tonight into Wednesday morning.
OUTLOOK... MVFR conditions will be possible Friday into Saturday along with a chance for thunderstorms.
ILN WATCHES/WARNINGS/ADVISORIES
OH...None.
KY...None.
IN...None.
Area Forecast Discussion National Weather Service Wilmington OH 905 AM EDT Tue Apr 21 2026
WHAT HAS CHANGED
Cancelled freeze warning and frost advisory for this morning.
KEY MESSAGES
1) Breezy and warmer conditions today.
2) Multiple systems will bring showers and a chance of thunderstorms to the region at times through the end of the week.
DISCUSSION
KEY MESSAGE 1)
Surface high pressure will move off to the east today, leading to a tightening pressure gradient across our area. As a result, breezy conditions will develop today and with decent mixing, some wind gusts in the 25 to 35 mph range can be expected this afternoon. With the good mixing, have also made some downward adjustments to dewpoints this afternoon, leading to afternoon RHs in the 25 to 35 percent range. In the developing WAA, highs today will be in the mid 70s.
KEY MESSAGE 2)
A weak mid level short wave will move through the Ohio Valley tonight into Wednesday as a weak frontal boundary sags south into our area. This will lead to scattered showers, and with some weak elevated instabilities developing, a few embedded thunderstorms will also be possible.
Mid level ridging will shift east across the Ohio Valley on Thursday before a somewhat stronger mid level short wave lifts northeast across our region Friday into Saturday. This will lead to additional chances for showers and thunderstorms through the end of the week.
AVIATION /13Z TUESDAY THROUGH SATURDAY/
A tightening pressure gradient will lead to increasing southwest winds today with gusts to around 30 knots possible at times this afternoon. With a dry airmass currently in place across the area, VFR conditions will prevail into this evening. However, a frontal boundary dropping down from the north will lead to increasing clouds and a developing chance for showers overnight into Wednesday morning.
Some marginal LLWS will also be possible overnight. As the low levels moisten up, some MVFR cigs will develop late tonight into Wednesday morning.
OUTLOOK... MVFR conditions will be possible Friday into Saturday along with a chance for thunderstorms.
ILN WATCHES/WARNINGS/ADVISORIES
OH...None.
KY...None.
IN...None.
Link to 1 hour of 5 minute data for KILN
Terminal Aerodrome Forecast (TAF) for KILN
Wind History Graph: ILN
(wind in knots)
GEOS Local Image of great lakes
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Wilmington, OH,
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