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National Weather Service Forecast
Forecast issued at 4:00 am EDT Aug 19, 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 309 AM EDT Wed Aug 19 2026 .WHAT HAS CHANGED... Increased potential for locally heavy rain late this afternoon into 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
 
Today

Today: A chance of showers and thunderstorms after 2pm.  Increasing clouds, with a high near 78. Calm wind becoming west 5 to 7 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.
Partly Sunny
then Chance
T-storms
Tonight

Tonight: A chance of showers and thunderstorms, then showers likely after 11pm.  Cloudy, with a low around 64. Calm wind.  Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Chance
T-storms then
Showers
Likely
Thursday

Thursday: A chance of showers, mainly before 9am.  Cloudy through mid morning, then gradual clearing, with a high near 80. Calm wind becoming northeast around 5 mph in the afternoon.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Chance
Showers

Thursday
Night
Thursday Night: Mostly clear, with a low around 62. Northeast wind around 5 mph becoming calm  in the evening.
Mostly Clear

Friday

Friday: Sunny, with a high near 82. Light northeast wind.
Sunny

Friday
Night
Friday Night: Mostly clear, with a low around 62.
Mostly Clear

Saturday

Saturday: A chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 81. Chance of precipitation is 40%.
Sunny then
Chance
T-storms
Saturday
Night
Saturday Night: A chance of showers and thunderstorms before 8pm.  Partly cloudy, with a low around 61. Chance of precipitation is 30%.
Chance
T-storms then
Mostly Clear
Sunday

Sunday: Mostly sunny, with a high near 78.
Mostly Sunny

 
Hi 78 °F Lo 64 °F Hi 80 °F Lo 62 °F Hi 82 °F Lo 62 °F Hi 81 °F Lo 61 °F Hi 78 °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
 
Today through Tuesday
 
  Today

Today: A chance of showers and thunderstorms after 2pm.  Increasing clouds, with a high near 78. Calm wind becoming west 5 to 7 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.
Partly Sunny
then Chance
T-storms
  Hi 78 °F
 
A chance of showers and thunderstorms after 2pm. Increasing clouds, with a high near 78. Calm wind becoming west 5 to 7 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.
 
 
  Tonight

Tonight: A chance of showers and thunderstorms, then showers likely after 11pm.  Cloudy, with a low around 64. Calm wind.  Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Chance
T-storms then
Showers
Likely
  Lo 64 °F
 
A chance of showers and thunderstorms, then showers likely after 11pm. Cloudy, with a low around 64. Calm wind. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
  Thursday

Thursday: A chance of showers, mainly before 9am.  Cloudy through mid morning, then gradual clearing, with a high near 80. Calm wind becoming northeast around 5 mph in the afternoon.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Chance
Showers

  Hi 80 °F
 
A chance of showers, mainly before 9am. Cloudy through mid morning, then gradual clearing, with a high near 80. Calm wind becoming northeast around 5 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
 
 
  Thursday
Night
Thursday Night: Mostly clear, with a low around 62. Northeast wind around 5 mph becoming calm  in the evening.
Mostly Clear

  Lo 62 °F
 
Mostly clear, with a low around 62. Northeast wind around 5 mph becoming calm in the evening.
  Friday

Friday: Sunny, with a high near 82. Light northeast wind.
Sunny

  Hi 82 °F
 
Sunny, with a high near 82. Light northeast wind.
 
 
  Friday
Night
Friday Night: Mostly clear, with a low around 62.
Mostly Clear

  Lo 62 °F
 
Mostly clear, with a low around 62.
  Saturday

Saturday: A chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 81. Chance of precipitation is 40%.
Sunny then
Chance
T-storms
  Hi 81 °F
 
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 81. Chance of precipitation is 40%.
 
 
  Saturday
Night
Saturday Night: A chance of showers and thunderstorms before 8pm.  Partly cloudy, with a low around 61. Chance of precipitation is 30%.
Chance
T-storms then
Mostly Clear
  Lo 61 °F
 
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 61. Chance of precipitation is 30%.
  Sunday

Sunday: Mostly sunny, with a high near 78.
Mostly Sunny

  Hi 78 °F
 
Mostly sunny, with a high near 78.
 
 
  Sunday Night   Partly cloudy, with a low around 58.   Monday   Mostly sunny, with a high near 79.  
 
  Monday Night   Mostly clear, with a low around 60.   Tuesday   Mostly sunny, with a high near 82.  
 
 
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