National Weather Service Forecast for: Lancaster, OH Issued by: National Weather Service Wilmington, OH

Updated: 1:08 am EST Nov 04, 2026

Wednesday Rain Thursday Mostly Sunny Friday Partly Sunny then Chance Light Rain Saturday Partly Sunny Sunday Mostly Sunny Monday Sunny Tuesday Sunny   Hi 67 °F Hi 65 °F Hi 60 °F Hi 53 °F Hi 56 °F Hi 59 °F Hi 63 °F   Overnight Mostly Cloudy Wednesday Night Light Rain Thursday Night Partly Cloudy Friday Night Chance Light Rain then Mostly Cloudy Saturday Night Partly Cloudy Sunday Night Mostly Clear Monday Night Mostly Clear   Lo 59 °F Lo 52 °F Lo 44 °F Lo 37 °F Lo 33 °F Lo 32 °F Lo 34 °F

Forecast from NOAA-NWS for Lancaster, OH.

224
FXUS61 KILN 040528
AFDILN

Area Forecast Discussion
National Weather Service Wilmington OH
1228 AM EST Wed Nov 4 2026

.WHAT HAS CHANGED...
No significant changes.

&&

.KEY MESSAGES...
1) Widespread showers and a few thunderstorms are expected today as
an upper level low pressure system moves northeast through the Upper
Midwest.

2) An upper level trough will settle into the Great Lakes region
late this week and over the weekend. This will lead to somewhat
cooler temperatures and occasional chances for showers.

&&

.DISCUSSION...
KEY MESSAGE 1)
A strengthening low level jet will overspread our area through this
morning ahead of an approaching mid level short wave. Good moisture
advection associated with this will lead to developing shower
activity through the morning hours. Shower activity will then
continue into this afternoon before beginning to taper off from west
to east late this afternoon into this evening. Instability will
remain weak at best, so think any embedded thunderstorm activity
should be fairly limited. PWs will creep up into the 1.5 inch range,
so some of the stronger showers/storms will be capable of producing
locally heavy rainfall. However, given the overall dry antecedent
conditions, any flooding concerns should be limited.

Key message 2)
A mid level short wave will drop down across the Great Lakes region
and through the upper Ohio Valley Friday into Saturday. This will
bring a chance of showers Friday into Friday night. This will also
usher in a somewhat cooler airmass heading into the weekend. Daytime
highs will only be in the 50s Saturday and Sunday. Temperatures will
then gradually rebound Monday into Tuesday.

&&

.AVIATION /06Z WEDNESDAY THROUGH SUNDAY/...
Showers will overspread the region this morning ahead of an
approaching mid level short wave. A strengthening low level jet
associated with this will lead to some marginal LLWS through mid
morning. Shower activity will then continue into this afternoon
before tapering off from west to east as we head into this evening.
Cigs and vsbys will trend down into MVFR category as the low levels
moisten up later this morning, with some localized IFR conditions
also possible. It will be tough to rule out an isolated thunderstorm
too, but chances are low enough to leave any mention out of the
TAFs. South winds of 15 to 25 knots can be expected today.

OUTLOOK...MVFR cigs possible Friday into Saturday.

&&

.ILN WATCHES/WARNINGS/ADVISORIES...
OH...None.
KY...None.
IN...None.

&&

$$

DISCUSSION...JGL
AVIATION...JGL

NWS ILN Office Area Forecast Discussion