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National Weather Service Forecast
Forecast issued at 4:00 am EDT May 18, 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 156 AM EDT Mon May 18 2026 .WHAT HAS CHANGED... High temperatures Monday and Tuesday were adjusted down from the NBM. Wind gusts were increased this afternoon and Tuesday afternoon.
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: Mostly sunny, with a high near 88. Southwest wind 7 to 14 mph, with gusts as high as 26 mph.
Mostly Sunny

 Tonight

Tonight: Mostly cloudy, with a low around 68. West wind 6 to 8 mph becoming south after midnight.
Mostly Cloudy

 Tuesday

Tuesday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 87. Southwest wind 10 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Mostly Sunny
then Showers
Likely
 Tuesday
Night
Tuesday Night: Showers and possibly a thunderstorm. Low around 63. Southwest wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Showers

 Wednesday

Wednesday: A chance of showers, mainly before 2pm. Mostly cloudy, with a high near 73. North wind around 9 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Chance
Showers

 Wednesday
Night
Wednesday Night: A slight chance of showers before 8pm, then a slight chance of showers after 2am. Mostly cloudy, with a low around 51. Chance of precipitation is 20%.
Mostly Cloudy
then Slight
Chance
Showers
 Thursday

Thursday: Partly sunny, with a high near 69.
Partly Sunny

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

 Friday

Friday: Showers likely and possibly a thunderstorm, mainly after 2pm. Mostly cloudy, with a high near 76. Chance of precipitation is 70%.
Showers
Likely
 
Hi 88 °F Lo 68 °F Hi 87 °F Lo 63 °F Hi 73 °F Lo 51 °F Hi 69 °F Lo 53 °F Hi 76 °F
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Today through Sunday
 
  Today

Today: Mostly sunny, with a high near 88. Southwest wind 7 to 14 mph, with gusts as high as 26 mph.
Mostly Sunny

   Hi 88 °F
 
Mostly sunny, with a high near 88. Southwest wind 7 to 14 mph, with gusts as high as 26 mph. 		 
 
  Tonight

Tonight: Mostly cloudy, with a low around 68. West wind 6 to 8 mph becoming south after midnight.
Mostly Cloudy

 		  Lo 68 °F
 
Mostly cloudy, with a low around 68. West wind 6 to 8 mph becoming south after midnight. 		  Tuesday

Tuesday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 87. Southwest wind 10 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Mostly Sunny
then Showers
Likely
 		  Hi 87 °F
 
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 87. Southwest wind 10 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. 		 
 
  Tuesday
Night
Tuesday Night: Showers and possibly a thunderstorm. Low around 63. Southwest wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Showers

 		  Lo 63 °F
 
Showers and possibly a thunderstorm. Low around 63. Southwest wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms. 		  Wednesday

Wednesday: A chance of showers, mainly before 2pm. Mostly cloudy, with a high near 73. North wind around 9 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Chance
Showers

 		  Hi 73 °F
 
A chance of showers, mainly before 2pm. Mostly cloudy, with a high near 73. North wind around 9 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible. 		 
 
  Wednesday
Night
Wednesday Night: A slight chance of showers before 8pm, then a slight chance of showers after 2am. Mostly cloudy, with a low around 51. Chance of precipitation is 20%.
Mostly Cloudy
then Slight
Chance
Showers
 		  Lo 51 °F
 
A slight chance of showers before 8pm, then a slight chance of showers after 2am. Mostly cloudy, with a low around 51. Chance of precipitation is 20%. 		  Thursday

Thursday: Partly sunny, with a high near 69.
Partly Sunny

 		  Hi 69 °F
 
Partly sunny, with a high near 69. 		 
 
  Thursday
Night
Thursday Night: Mostly cloudy, with a low around 53.
Mostly Cloudy

 		  Lo 53 °F
 
Mostly cloudy, with a low around 53. 		  Friday

Friday: Showers likely and possibly a thunderstorm, mainly after 2pm. Mostly cloudy, with a high near 76. Chance of precipitation is 70%.
Showers
Likely

 		  Hi 76 °F
 
Showers likely and possibly a thunderstorm, mainly after 2pm. Mostly cloudy, with a high near 76. Chance of precipitation is 70%. 		 
 
  Friday Night   Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 61. Chance of precipitation is 70%.   Saturday   Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 79. Chance of precipitation is 70%.  
 
  Saturday Night   A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.   Sunday   A chance of showers and thunderstorms. Partly sunny, with a high near 83. Chance of precipitation is 40%.  
 
 
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