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National Weather Service Forecast
Forecast issued at 4:00 pm EDT Sep 17, 2026 by the National Weather Service Wilmington, OH
Hazardous Weather Outlook
Special Weather Statement
Flood Watch

Forecast Discussion for ILN NWS Office Area Forecast Discussion National Weather Service Wilmington OH 341 PM EDT Thu Sep 17 2026 Flood watch issued for tonight and Thursday.
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: A chance of showers and thunderstorms between 2am and 4am, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 70. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Mostly Cloudy
then Showers
Likely
 Friday

Friday: Showers and thunderstorms likely, mainly before 8am. Mostly cloudy, with a high near 83. Northeast wind 6 to 8 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Showers
Likely then
Mostly Cloudy
 Friday
Night
Friday Night: Mostly cloudy, with a low around 63. Northeast wind 3 to 8 mph.
Mostly Cloudy

 Saturday

Saturday: A chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 85. Light and variable wind becoming south around 5 mph 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

 Saturday
Night
Saturday Night: A slight chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 69. Light southeast wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Showers
Likely

 Sunday

Sunday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 40%. 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 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.
Chance
T-storms then
Chance
Showers
 Monday

Monday: A chance of showers after 2pm. Mostly cloudy, with a high near 78. Chance of precipitation is 30%.
Mostly Cloudy
then Chance
Showers
 Monday
Night
Monday Night: A chance of showers. Mostly cloudy, with a low around 61. Chance of precipitation is 50%.
Chance
Showers
 
Lo 70 °F Hi 83 °F Lo 63 °F Hi 85 °F Lo 69 °F Hi 85 °F Lo 64 °F Hi 78 °F Lo 61 °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 Wednesday Night
 
  Tonight

Tonight: A chance of showers and thunderstorms between 2am and 4am, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 70. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Mostly Cloudy
then Showers
Likely
   Lo 70 °F
 
A chance of showers and thunderstorms between 2am and 4am, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 70. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible. 		 
 
  Friday

Friday: Showers and thunderstorms likely, mainly before 8am. Mostly cloudy, with a high near 83. Northeast wind 6 to 8 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Showers
Likely then
Mostly Cloudy
 		  Hi 83 °F
 
Showers and thunderstorms likely, mainly before 8am. Mostly cloudy, with a high near 83. Northeast wind 6 to 8 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms. 		  Friday
Night
Friday Night: Mostly cloudy, with a low around 63. Northeast wind 3 to 8 mph.
Mostly Cloudy

 		  Lo 63 °F
 
Mostly cloudy, with a low around 63. Northeast wind 3 to 8 mph. 		 
 
  Saturday

Saturday: A chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 85. Light and variable wind becoming south around 5 mph 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

 		  Hi 85 °F
 
A chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 85. Light and variable wind becoming south around 5 mph 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. 		  Saturday
Night
Saturday Night: A slight chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 69. Light southeast wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Showers
Likely

 		  Lo 69 °F
 
A slight chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 69. Light southeast 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 chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Chance
Showers then
Chance
T-storms
 		  Hi 85 °F
 
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 40%. 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 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.
Chance
T-storms then
Chance
Showers
 		  Lo 64 °F
 
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 30%. 		 
 
  Monday

Monday: A chance of showers after 2pm. Mostly cloudy, with a high near 78. Chance of precipitation is 30%.
Mostly Cloudy
then Chance
Showers
 		  Hi 78 °F
 
A chance of showers after 2pm. Mostly cloudy, with a high near 78. Chance of precipitation is 30%. 		  Monday
Night
Monday Night: A chance of showers. Mostly cloudy, with a low around 61. Chance of precipitation is 50%.
Chance
Showers

 		  Lo 61 °F
 
A chance of showers. Mostly cloudy, with a low around 61. Chance of precipitation is 50%. 		 
 
  Tuesday   A chance of showers. Partly sunny, with a high near 74. Chance of precipitation is 40%.   Tuesday Night   Mostly cloudy, with a low around 60.  
 
  Wednesday   Partly sunny, with a high near 73.   Wednesday Night   Partly cloudy, with a low around 58.  
 
 
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