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National Weather Service Forecast
Forecast issued at 4:00 pm EDT Sep 1, 2026 by the National Weather Service Wilmington, OH
Hazardous Weather Outlook
Heat Advisory

Forecast Discussion for ILN NWS Office Area Forecast Discussion National Weather Service Wilmington OH 248 PM EDT Tue Sep 1 2026 .WHAT HAS CHANGED... Decreased temperatures from NBM and increased precipitation chances from NBM through Friday across portions of the area. Added severe mention in the HWO for Friday.
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 4am.  Otherwise, mostly clear, with a low around 73. West wind around 5 mph becoming calm  in the evening.
Mostly Clear
then Patchy
Fog
Wednesday

Wednesday: Patchy fog before 9am.  Otherwise, sunny, with a high near 95. Heat index values as high as 104. Calm wind becoming west 5 to 8 mph in the afternoon.
Patchy Fog
then Sunny
Wednesday
Night
Wednesday Night: Mostly clear, with a low around 75. Calm wind.
Mostly Clear

Thursday

Thursday: Sunny, with a high near 95. Heat index values as high as 104. Calm wind becoming west 5 to 8 mph in the afternoon.
Sunny

Thursday
Night
Thursday Night: A slight chance of showers and thunderstorms.  Partly cloudy, with a low around 75. Calm wind.  Chance of precipitation is 20%.
Slight Chance
T-storms
Friday

Friday: A slight chance of showers, with thunderstorms also possible after 8am.  Mostly sunny, with a high near 93. Chance of precipitation is 20%.
Slight Chance
T-storms
Friday
Night
Friday Night: A chance of showers and thunderstorms after 2am.  Partly cloudy, with a low around 71. Chance of precipitation is 30%.
Partly Cloudy
then Chance
T-storms
Saturday

Saturday: A chance of showers and thunderstorms.  Partly sunny, with a high near 88. Chance of precipitation is 40%.
Chance
T-storms
Saturday
Night
Saturday Night: Partly cloudy, with a low around 65.
Partly Cloudy

 
Lo 73 °F Hi 95 °F Lo 75 °F Hi 95 °F Lo 75 °F Hi 93 °F Lo 71 °F Hi 88 °F Lo 65 °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: Patchy fog after 4am.  Otherwise, mostly clear, with a low around 73. West wind around 5 mph becoming calm  in the evening.
Mostly Clear
then Patchy
Fog
  Lo 73 °F
 
Patchy fog after 4am. Otherwise, mostly clear, with a low around 73. West wind around 5 mph becoming calm in the evening.
 
 
  Wednesday

Wednesday: Patchy fog before 9am.  Otherwise, sunny, with a high near 95. Heat index values as high as 104. Calm wind becoming west 5 to 8 mph in the afternoon.
Patchy Fog
then Sunny
  Hi 95 °F
 
Patchy fog before 9am. Otherwise, sunny, with a high near 95. Heat index values as high as 104. Calm wind becoming west 5 to 8 mph in the afternoon.
  Wednesday
Night
Wednesday Night: Mostly clear, with a low around 75. Calm wind.
Mostly Clear

  Lo 75 °F
 
Mostly clear, with a low around 75. Calm wind.
 
 
  Thursday

Thursday: Sunny, with a high near 95. Heat index values as high as 104. Calm wind becoming west 5 to 8 mph in the afternoon.
Sunny

  Hi 95 °F
 
Sunny, with a high near 95. Heat index values as high as 104. Calm wind becoming west 5 to 8 mph in the afternoon.
  Thursday
Night
Thursday Night: A slight chance of showers and thunderstorms.  Partly cloudy, with a low around 75. Calm wind.  Chance of precipitation is 20%.
Slight Chance
T-storms
  Lo 75 °F
 
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 75. Calm wind. Chance of precipitation is 20%.
 
 
  Friday

Friday: A slight chance of showers, with thunderstorms also possible after 8am.  Mostly sunny, with a high near 93. Chance of precipitation is 20%.
Slight Chance
T-storms
  Hi 93 °F
 
A slight chance of showers, with thunderstorms also possible after 8am. Mostly sunny, with a high near 93. Chance of precipitation is 20%.
  Friday
Night
Friday Night: A chance of showers and thunderstorms after 2am.  Partly cloudy, with a low around 71. Chance of precipitation is 30%.
Partly Cloudy
then Chance
T-storms
  Lo 71 °F
 
A chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 71. Chance of precipitation is 30%.
 
 
  Saturday

Saturday: A chance of showers and thunderstorms.  Partly sunny, with a high near 88. Chance of precipitation is 40%.
Chance
T-storms
  Hi 88 °F
 
A chance of showers and thunderstorms. Partly sunny, with a high near 88. Chance of precipitation is 40%.
  Saturday
Night
Saturday Night: Partly cloudy, with a low around 65.
Partly Cloudy

  Lo 65 °F
 
Partly cloudy, with a low around 65.
 
 
  Sunday   Mostly sunny, with a high near 85.   Sunday Night   Partly cloudy, with a low around 63.  
 
  Labor Day   Mostly sunny, with a high near 84.   Monday Night   Partly cloudy, with a low around 63.  
 
 
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