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

Updated: 4:33 pm EDT Oct 28, 2026

This Afternoon Sunny Thursday Sunny Friday Sunny Saturday Mostly Cloudy Sunday Mostly Cloudy Monday Chance Light Rain Tuesday Slight Chance Light Rain   Hi 74 °F Hi 75 °F Hi 69 °F Hi 67 °F Hi 70 °F Hi 70 °F Hi 71 °F     Tonight Clear Thursday Night Mostly Clear Friday Night Partly Cloudy Saturday Night Mostly Cloudy Sunday Night Chance Light Rain Monday Night Mostly Cloudy then Slight Chance Light Rain Tuesday Night Chance Light Rain   Lo 48 °F Lo 50 °F Lo 43 °F Lo 48 °F Lo 50 °F Lo 51 °F Lo 54 °F

Forecast from NOAA-NWS for Lancaster, OH.

458
FXUS61 KILN 281742
AFDILN

Area Forecast Discussion
National Weather Service Wilmington OH
142 PM EDT Wed Oct 28 2026

.WHAT HAS CHANGED...
No significant changes.

&&

.KEY MESSAGES...
1) Dry conditions will persist through the week.

2) The potential for rain returns for the latter part of the weekend,
into early next week.

&&

.DISCUSSION...
KEY MESSAGE 1)
Southwest flow aloft will translate to a more zonal westerly later
tonight, with ridging becoming apparent on Friday, lasting into
Saturday as the axis crosses the Ohio Valley.

Above normal temperatures will continue, although in the wake of the
front, readings will be not quite as warm. Highs may only be 7 to 10
degrees above normal on Saturday compared to 10 to 15 degrees above
normal today and Thursday.

KEY MESSAGE 2)
S/w energy moving east on Sunday will bring the next viable chance
of rainfall to the region. One fly in the ointment is that the Euro
and Canadian models are much weaker with this feature and keep the
forecast dry under a building ridge. Even the GFS has this ridge,
albeit much less amplified versus the other models showing l/w
ridging in place during this time. GFS even by its own mass fields
should not support the precip that it`s giving for Monday.

Forecast beyond Sunday is muddled with deterministic models showing
large divergence. This divergence adds the probability of rainfall to
the forecast from Sunday onward.

&&

.AVIATION /18Z WEDNESDAY THROUGH MONDAY/...
Mid and high clouds will move off to the east early in the period
with just a few lingering clouds for the rest of the day. Winds will
become south southwest at 10 kt or less and then back and decrease
after 00Z.

OUTLOOK...MVFR ceilings and visibilities possible Sunday afternoon.

&&

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

&&

$$

DISCUSSION...Franks
AVIATION...Franks

NWS ILN Office Area Forecast Discussion