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Lancaster, Ohio 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Lancaster OH
National Weather Service Forecast for: Lancaster OH
Issued by: National Weather Service Wilmington, OH
Updated: 4:00 pm EDT Jun 18, 2026
 
Overnight

Overnight: Mostly cloudy, with a low around 56. Calm wind.
Mostly Cloudy

Juneteenth

Juneteenth: Sunny, with a high near 77. Light northwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Sunny

Friday
Night
Friday Night: Mostly clear, with a low around 56. West wind 5 to 7 mph becoming calm  in the evening.
Mostly Clear

Saturday

Saturday: A slight chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 79. Light west wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 21 mph.  Chance of precipitation is 20%.
Sunny then
Slight Chance
T-storms
Saturday
Night
Saturday Night: Partly cloudy, with a low around 59. West wind around 5 mph becoming calm  in the evening.
Partly Cloudy

Sunday

Sunday: A slight chance of showers after 2pm.  Mostly sunny, with a high near 81. Chance of precipitation is 20%.
Mostly Sunny
then Slight
Chance
Showers
Sunday
Night
Sunday Night: A chance of thunderstorms, then showers and possibly a thunderstorm after 8pm.  Low around 64. Chance of precipitation is 80%.
Showers

Monday

Monday: Showers and possibly a thunderstorm.  High near 77. Chance of precipitation is 80%.
Showers

Monday
Night
Monday Night: Showers likely before 8pm.  Mostly cloudy, with a low around 58. Chance of precipitation is 60%.
Showers
Likely then
Partly Cloudy
Lo 56 °F Hi 77 °F Lo 56 °F Hi 79 °F Lo 59 °F Hi 81 °F Lo 64 °F Hi 77 °F Lo 58 °F

 

Overnight
 
Mostly cloudy, with a low around 56. Calm wind.
Juneteenth
 
Sunny, with a high near 77. Light northwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Friday Night
 
Mostly clear, with a low around 56. West wind 5 to 7 mph becoming calm in the evening.
Saturday
 
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 79. Light west wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 20%.
Saturday Night
 
Partly cloudy, with a low around 59. West wind around 5 mph becoming calm in the evening.
Sunday
 
A slight chance of showers after 2pm. Mostly sunny, with a high near 81. Chance of precipitation is 20%.
Sunday Night
 
A chance of thunderstorms, then showers and possibly a thunderstorm after 8pm. Low around 64. Chance of precipitation is 80%.
Monday
 
Showers and possibly a thunderstorm. High near 77. Chance of precipitation is 80%.
Monday Night
 
Showers likely before 8pm. Mostly cloudy, with a low around 58. Chance of precipitation is 60%.
Tuesday
 
Mostly sunny, with a high near 77.
Tuesday Night
 
Mostly clear, with a low around 58.
Wednesday
 
Mostly sunny, with a high near 78.
Wednesday Night
 
Partly cloudy, with a low around 59.
Thursday
 
A chance of showers and thunderstorms. Mostly sunny, with a high near 79. Chance of precipitation is 30%.

 

Forecast from NOAA-NWS for Lancaster OH.

Weather Forecast Discussion
812
FXUS61 KILN 190006
AFDILN

Area Forecast Discussion
National Weather Service Wilmington OH
806 PM EDT Thu Jun 18 2026

.WHAT HAS CHANGED...
No significant changes.

&&

.KEY MESSAGES...
1) A few showers possible into this evening hours and then a return
of rain chances Sunday and Monday.

2) Below normal temperatures are expected through the week.

&&

.DISCUSSION...
KEY MESSAGE 1)

A few showers will be possible into the evening hours. A cold front
is moving through the area and dry conditions are generally expected
overnight through Friday night. A weak system will bring some showers
and storms to the region on Saturday. A larger system will move
through Sunday into Monday bringing more widespread shower and
thunderstorm chances to the area.

KEY MESSAGE 2)

With the passage of the cold front today, cooler air will work into
the region and below normal temperatures are expected for most
locations through the week. High temperatures in most locations will
be in the 70s to low 80s this next week. Low temperatures will be in
the middle 50s to middle 60s.

&&

.AVIATION /00Z FRIDAY THROUGH TUESDAY/...
Clouds and winds will diminish during the early part of the TAF
period. This may lead to some shallow fog at KLUK resulting in
visibility restrictions. Some cumulus will develop with heating on
Friday with winds gusting to 20 kt or more after 17Z.

OUTLOOK...Thunderstorms possible Sunday afternoon into Monday.

&&

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

&&

$$

DISCUSSION...08
AVIATION...35
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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