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National Weather Service Forecast
Forecast issued at 4:00 pm EDT Sep 20, 2026 by the National Weather Service Wilmington, OH
Hazardous Weather Outlook
Flood Watch

Forecast Discussion for ILN NWS Office Area Forecast Discussion National Weather Service Wilmington OH 241 PM EDT Sun Sep 20 2026 .WHAT HAS CHANGED... Flood watch issued for tonight.
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: Showers and thunderstorms likely before 2am, then showers and possibly a thunderstorm between 2am and 3am, then a chance of showers and thunderstorms after 3am.  Low around 64. Northeast wind 5 to 9 mph.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Showers

Monday

Monday: Showers likely, mainly before 4pm.  Mostly cloudy, with a high near 73. Northeast wind around 9 mph.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Showers
Likely then
Slight Chance
Showers
Monday
Night
Monday Night: Mostly cloudy, with a low around 57. Northeast wind 7 to 11 mph.
Mostly Cloudy

Tuesday

Tuesday: Mostly cloudy, with a high near 71. Northeast wind around 9 mph.
Mostly Cloudy

Tuesday
Night
Tuesday Night: Mostly cloudy, with a low around 56. Northeast wind 6 to 11 mph.
Mostly Cloudy

Wednesday

Wednesday: A slight chance of showers after 2pm.  Mostly cloudy, with a high near 69. Chance of precipitation is 20%.
Mostly Cloudy
then Slight
Chance
Showers
Wednesday
Night
Wednesday Night: Mostly cloudy, with a low around 55.
Mostly Cloudy

Thursday

Thursday: Partly sunny, with a high near 70.
Partly Sunny

Thursday
Night
Thursday Night: Mostly cloudy, with a low around 53.
Mostly Cloudy

 
Lo 64 °F Hi 73 °F Lo 57 °F Hi 71 °F Lo 56 °F Hi 69 °F Lo 55 °F Hi 70 °F Lo 53 °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 Saturday Night
 
  Tonight

Tonight: Showers and thunderstorms likely before 2am, then showers and possibly a thunderstorm between 2am and 3am, then a chance of showers and thunderstorms after 3am.  Low around 64. Northeast wind 5 to 9 mph.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Showers

  Lo 64 °F
 
Showers and thunderstorms likely before 2am, then showers and possibly a thunderstorm between 2am and 3am, then a chance of showers and thunderstorms after 3am. Low around 64. Northeast wind 5 to 9 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
 
 
  Monday

Monday: Showers likely, mainly before 4pm.  Mostly cloudy, with a high near 73. Northeast wind around 9 mph.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Showers
Likely then
Slight Chance
Showers
  Hi 73 °F
 
Showers likely, mainly before 4pm. Mostly cloudy, with a high near 73. Northeast wind around 9 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
  Monday
Night
Monday Night: Mostly cloudy, with a low around 57. Northeast wind 7 to 11 mph.
Mostly Cloudy

  Lo 57 °F
 
Mostly cloudy, with a low around 57. Northeast wind 7 to 11 mph.
 
 
  Tuesday

Tuesday: Mostly cloudy, with a high near 71. Northeast wind around 9 mph.
Mostly Cloudy

  Hi 71 °F
 
Mostly cloudy, with a high near 71. Northeast wind around 9 mph.
  Tuesday
Night
Tuesday Night: Mostly cloudy, with a low around 56. Northeast wind 6 to 11 mph.
Mostly Cloudy

  Lo 56 °F
 
Mostly cloudy, with a low around 56. Northeast wind 6 to 11 mph.
 
 
  Wednesday

Wednesday: A slight chance of showers after 2pm.  Mostly cloudy, with a high near 69. Chance of precipitation is 20%.
Mostly Cloudy
then Slight
Chance
Showers
  Hi 69 °F
 
A slight chance of showers after 2pm. Mostly cloudy, with a high near 69. Chance of precipitation is 20%.
  Wednesday
Night
Wednesday Night: Mostly cloudy, with a low around 55.
Mostly Cloudy

  Lo 55 °F
 
Mostly cloudy, with a low around 55.
 
 
  Thursday

Thursday: Partly sunny, with a high near 70.
Partly Sunny

  Hi 70 °F
 
Partly sunny, with a high near 70.
  Thursday
Night
Thursday Night: Mostly cloudy, with a low around 53.
Mostly Cloudy

  Lo 53 °F
 
Mostly cloudy, with a low around 53.
 
 
  Friday   Mostly sunny, with a high near 70.   Friday Night   Partly cloudy, with a low around 50.  
 
  Saturday   Sunny, with a high near 72.   Saturday Night   Partly cloudy, with a low around 51.  
 
 
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