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National Weather Service Forecast
Forecast issued at 4:00 am EDT Sep 20, 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 435 AM EDT Sun Sep 20 2026 .WHAT HAS CHANGED... No significant changes.
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4    D A Y    F O R E C A S T    A T    A    G L A N C E
 
Overnight

Overnight: A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Light southeast wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Chance
Showers

 Sunday

Sunday: A chance of showers and thunderstorms before 4pm, then a chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 89. Southeast wind 5 to 7 mph becoming northwest in the afternoon. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Chance
Showers then
Chance
T-storms
 Sunday
Night
Sunday Night: A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then a chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 63. Northeast wind 8 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Chance
T-storms then
Showers
Likely
 Monday

Monday: Showers likely, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 74. Northeast wind 8 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Showers
Likely

 Monday
Night
Monday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Northeast wind 8 to 11 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Chance
Showers

 Tuesday

Tuesday: A chance of showers, mainly after 2pm. Mostly cloudy, with a high near 71. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Chance
Showers

 Tuesday
Night
Tuesday Night: A chance of showers before 8pm. Mostly cloudy, with a low around 57. Chance of precipitation is 30%.
Chance
Showers then
Mostly Cloudy
 Wednesday

Wednesday: Mostly cloudy, with a high near 69.
Mostly Cloudy

 Wednesday
Night
Wednesday Night: Mostly cloudy, with a low around 55.
Mostly Cloudy
 
Lo 69 °F Hi 89 °F Lo 63 °F Hi 74 °F Lo 58 °F Hi 71 °F Lo 57 °F Hi 69 °F Lo 55 °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
 
Overnight through Friday Night
 
  Overnight

Overnight: A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Light southeast wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Chance
Showers

   Lo 69 °F
 
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Light southeast wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. 		 
 
  Sunday

Sunday: A chance of showers and thunderstorms before 4pm, then a chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 89. Southeast wind 5 to 7 mph becoming northwest in the afternoon. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Chance
Showers then
Chance
T-storms
 		  Hi 89 °F
 
A chance of showers and thunderstorms before 4pm, then a chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 89. Southeast wind 5 to 7 mph becoming northwest in the afternoon. Chance of precipitation is 30%. 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 before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then a chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 63. Northeast wind 8 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Chance
T-storms then
Showers
Likely
 		  Lo 63 °F
 
A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then a chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 63. Northeast wind 8 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible. 		 
 
  Monday

Monday: Showers likely, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 74. Northeast wind 8 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Showers
Likely

 		  Hi 74 °F
 
Showers likely, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 74. Northeast wind 8 to 10 mph. Chance of precipitation is 60%. 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. Northeast wind 8 to 11 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Chance
Showers

 		  Lo 58 °F
 
A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Northeast wind 8 to 11 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. 		 
 
  Tuesday

Tuesday: A chance of showers, mainly after 2pm. Mostly cloudy, with a high near 71. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Chance
Showers

 		  Hi 71 °F
 
A chance of showers, mainly after 2pm. Mostly cloudy, with a high near 71. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible. 		  Tuesday
Night
Tuesday Night: A chance of showers before 8pm. Mostly cloudy, with a low around 57. Chance of precipitation is 30%.
Chance
Showers then
Mostly Cloudy
 		  Lo 57 °F
 
A chance of showers before 8pm. Mostly cloudy, with a low around 57. Chance of precipitation is 30%. 		 
 
  Wednesday

Wednesday: Mostly cloudy, with a high near 69.
Mostly Cloudy

 		  Hi 69 °F
 
Mostly cloudy, with a high near 69. 		  Wednesday
Night
Wednesday Night: Mostly cloudy, with a low around 55.
Mostly Cloudy

 		  Lo 55 °F
 
Mostly cloudy, with a low around 55. 		 
 
  Thursday   Mostly cloudy, with a high near 70.   Thursday Night   Partly cloudy, with a low around 53.  
 
  Friday   Partly sunny, with a high near 70.   Friday Night   Partly cloudy, with a low around 50.  
 
 
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