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National Weather Service Forecast
Forecast issued at 1:08 pm EDT Sep 15, 2026 by the National Weather Service Wilmington, OH

Forecast Discussion for ILN NWS Office Area Forecast Discussion National Weather Service Wilmington OH 222 PM EDT Tue Sep 15 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
 
Tonight

Tonight: Mostly clear, with a low around 70. Southwest wind around 6 mph becoming calm  in the evening.
Mostly Clear

Wednesday

Wednesday: A slight chance of showers, with thunderstorms also possible after 5pm.  Mostly sunny, with a high near 91. Heat index values as high as 101. Calm wind becoming west around 5 mph in the afternoon.  Chance of precipitation is 20%.
Mostly Sunny
then Slight
Chance
T-storms
Wednesday
Night
Wednesday Night: A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am.  Partly cloudy, with a low around 70. Calm wind.  Chance of precipitation is 20%.
Slight Chance
T-storms then
Slight Chance
Showers
Thursday

Thursday: A slight chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 92. Heat index values as high as 100. Calm wind becoming west 5 to 7 mph in the afternoon.  Chance of precipitation is 20%.
Mostly Sunny
then Slight
Chance
T-storms
Thursday
Night
Thursday Night: A chance of showers and thunderstorms, mainly after 8pm.  Mostly cloudy, with a low around 70. Calm wind.  Chance of precipitation is 30%.
Chance
T-storms

Friday

Friday: Mostly sunny, with a high near 86.
Mostly Sunny

Friday
Night
Friday Night: Partly cloudy, with a low around 65.
Partly Cloudy

Saturday

Saturday: Mostly sunny, with a high near 88.
Mostly Sunny

Saturday
Night
Saturday Night: Partly cloudy, with a low around 69.
Partly Cloudy

 
Lo 70 °F Hi 91 °F Lo 70 °F Hi 92 °F Lo 70 °F Hi 86 °F Lo 65 °F Hi 88 °F Lo 69 °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 Monday Night
 
  Tonight

Tonight: Mostly clear, with a low around 70. Southwest wind around 6 mph becoming calm  in the evening.
Mostly Clear

  Lo 70 °F
 
Mostly clear, with a low around 70. Southwest wind around 6 mph becoming calm in the evening.
 
 
  Wednesday

Wednesday: A slight chance of showers, with thunderstorms also possible after 5pm.  Mostly sunny, with a high near 91. Heat index values as high as 101. Calm wind becoming west around 5 mph in the afternoon.  Chance of precipitation is 20%.
Mostly Sunny
then Slight
Chance
T-storms
  Hi 91 °F
 
A slight chance of showers, with thunderstorms also possible after 5pm. Mostly sunny, with a high near 91. Heat index values as high as 101. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 20%.
  Wednesday
Night
Wednesday Night: A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am.  Partly cloudy, with a low around 70. Calm wind.  Chance of precipitation is 20%.
Slight Chance
T-storms then
Slight Chance
Showers
  Lo 70 °F
 
A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 70. Calm wind. Chance of precipitation is 20%.
 
 
  Thursday

Thursday: A slight chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 92. Heat index values as high as 100. Calm wind becoming west 5 to 7 mph in the afternoon.  Chance of precipitation is 20%.
Mostly Sunny
then Slight
Chance
T-storms
  Hi 92 °F
 
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92. Heat index values as high as 100. Calm wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 20%.
  Thursday
Night
Thursday Night: A chance of showers and thunderstorms, mainly after 8pm.  Mostly cloudy, with a low around 70. Calm wind.  Chance of precipitation is 30%.
Chance
T-storms

  Lo 70 °F
 
A chance of showers and thunderstorms, mainly after 8pm. Mostly cloudy, with a low around 70. Calm wind. Chance of precipitation is 30%.
 
 
  Friday

Friday: Mostly sunny, with a high near 86.
Mostly Sunny

  Hi 86 °F
 
Mostly sunny, with a high near 86.
  Friday
Night
Friday Night: Partly cloudy, with a low around 65.
Partly Cloudy

  Lo 65 °F
 
Partly cloudy, with a low around 65.
 
 
  Saturday

Saturday: Mostly sunny, with a high near 88.
Mostly Sunny

  Hi 88 °F
 
Mostly sunny, with a high near 88.
  Saturday
Night
Saturday Night: Partly cloudy, with a low around 69.
Partly Cloudy

  Lo 69 °F
 
Partly cloudy, with a low around 69.
 
 
  Sunday   A chance of showers after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 50%.   Sunday Night   A chance of showers. Mostly cloudy, with a low around 63. Chance of precipitation is 50%.  
 
  Monday   A chance of showers. Partly sunny, with a high near 77. Chance of precipitation is 40%.   Monday Night   Partly cloudy, with a low around 58.  
 
 
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