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National Weather Service Forecast
Forecast issued at 4:00 pm EDT Sep 18, 2026 by the National Weather Service Wilmington, OH
Hazardous Weather Outlook

Forecast Discussion for ILN NWS Office Area Forecast Discussion National Weather Service Wilmington OH 144 PM EDT Fri Sep 18 2026 .WHAT HAS CHANGED... Increased pops and severe threat for Saturday afternoon.
See Full Discussion Here
4    D A Y    F O R E C A S T    A T    A    G L A N C E
 
Tonight

Tonight: Patchy fog after 5am. Otherwise, partly cloudy, with a low around 61. Northeast wind 3 to 8 mph.
Partly Cloudy
then Patchy
Fog
 Saturday

Saturday: A chance of showers, with thunderstorms also possible after 5pm. Widespread fog, mainly before 7am. Otherwise, mostly sunny, with a high near 83. Light and variable wind becoming south around 6 mph in the morning. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Fog then
Chance
Showers
 Saturday
Night
Saturday Night: Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 68. Light and variable wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Chance
T-storms then
Showers
Likely
 Sunday

Sunday: A slight chance of showers before 7am, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. Light and variable wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Mostly Sunny
then Chance
T-storms
 Sunday
Night
Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Chance
T-storms then
Chance
Showers
 Monday

Monday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 76. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Chance
T-storms

 Monday
Night
Monday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Chance of precipitation is 50%.
Chance
T-storms then
Chance
Showers
 Tuesday

Tuesday: A chance of showers. Mostly cloudy, with a high near 73. Chance of precipitation is 30%.
Chance
Showers

 Tuesday
Night
Tuesday Night: A chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 40%.
Chance
Showers
 
Lo 61 °F Hi 83 °F Lo 68 °F Hi 84 °F Lo 63 °F Hi 76 °F Lo 58 °F Hi 73 °F Lo 59 °F
48 Hour Temperature and Dew Point Forecast
DEW POINT: 60-64=Slightly Humid, 65-69=Humid, 70-74=Very Humid, 75-79=Oppressively Humid, 80 & Greater=Very Oppressively Humid
48 hour temperature forecast
48 Hour Precipitation Potential and Sky Cover Forecast
48 hour temperature forecast
48 Hour Rain and Thunder Forecast
48 hour precipitation forecast
48 Hour Snow Freezing Rain and Sleet Forecast
48 hour forecast
48 Hour Wind Forecast
48 hour temperature forecast
 
7 DAY HOURLY FORECAST TABLES & GRAPHS
 
Tonight through Thursday Night
 
  Tonight

Tonight: Patchy fog after 5am. Otherwise, partly cloudy, with a low around 61. Northeast wind 3 to 8 mph.
Partly Cloudy
then Patchy
Fog
   Lo 61 °F
 
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 61. Northeast wind 3 to 8 mph. 		 
 
  Saturday

Saturday: A chance of showers, with thunderstorms also possible after 5pm. Widespread fog, mainly before 7am. Otherwise, mostly sunny, with a high near 83. Light and variable wind becoming south around 6 mph in the morning. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Fog then
Chance
Showers
 		  Hi 83 °F
 
A chance of showers, with thunderstorms also possible after 5pm. Widespread fog, mainly before 7am. Otherwise, mostly sunny, with a high near 83. Light and variable wind becoming south around 6 mph in the morning. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. 		  Saturday
Night
Saturday Night: Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 68. Light and variable wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Chance
T-storms then
Showers
Likely
 		  Lo 68 °F
 
Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 68. Light and variable wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms. 		 
 
  Sunday

Sunday: A slight chance of showers before 7am, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. Light and variable wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Mostly Sunny
then Chance
T-storms
 		  Hi 84 °F
 
A slight chance of showers before 7am, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. Light and variable wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. 		  Sunday
Night
Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Chance
T-storms then
Chance
Showers
 		  Lo 63 °F
 
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms. 		 
 
  Monday

Monday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 76. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Chance
T-storms

 		  Hi 76 °F
 
A chance of showers and thunderstorms. Mostly cloudy, with a high near 76. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms. 		  Monday
Night
Monday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Chance of precipitation is 50%.
Chance
T-storms then
Chance
Showers
 		  Lo 58 °F
 
A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Chance of precipitation is 50%. 		 
 
  Tuesday

Tuesday: A chance of showers. Mostly cloudy, with a high near 73. Chance of precipitation is 30%.
Chance
Showers

 		  Hi 73 °F
 
A chance of showers. Mostly cloudy, with a high near 73. Chance of precipitation is 30%. 		  Tuesday
Night
Tuesday Night: A chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 40%.
Chance
Showers

 		  Lo 59 °F
 
A chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 40%. 		 
 
  Wednesday   A chance of showers after 2pm. Mostly cloudy, with a high near 72. Chance of precipitation is 30%.   Wednesday Night   A chance of showers. Mostly cloudy, with a low around 57. Chance of precipitation is 30%.  
 
  Thursday   Partly sunny, with a high near 72.   Thursday Night   Partly cloudy, with a low around 56.  
 
 
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