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National Weather Service Forecast
Forecast issued at 4:00 pm EDT Oct 20, 2026 by the National Weather Service Wilmington, OH

Forecast Discussion for ILN NWS Office Area Forecast Discussion National Weather Service Wilmington OH 656 PM EDT Tue Oct 20 2026 .WHAT HAS CHANGED... Added fog in for tonight. Lowered temperatures and added frost into portions of central Ohio for Wednesday night.
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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: Patchy fog after 2am. Otherwise, clear, with a low around 42. Light northeast wind.
Clear then
Patchy Fog
 Wednesday

Wednesday: Patchy fog before 10am. Otherwise, sunny, with a high near 70. Light north wind.
Patchy Fog
then Sunny
 Wednesday
Night
Wednesday Night: Patchy fog after 5am. Otherwise, mostly clear, with a low around 43. Calm wind.
Clear then
Patchy Fog
 Thursday

Thursday: Patchy fog before 10am. Otherwise, sunny, with a high near 69. Calm wind becoming northeast around 6 mph in the afternoon.
Patchy Fog
then Sunny
 Thursday
Night
Thursday Night: Mostly clear, with a low around 44. Light northeast wind.
Mostly Clear
 Friday

Friday: Sunny, with a high near 67.
Sunny
 Friday
Night
Friday Night: Clear, with a low around 40.
Clear
 Saturday

Saturday: Sunny, with a high near 68.
Sunny
 Saturday
Night
Saturday Night: Mostly clear, with a low around 42.
Mostly Clear
 
Lo 42 °F Hi 70 °F Lo 43 °F Hi 69 °F Lo 44 °F Hi 67 °F Lo 40 °F Hi 68 °F Lo 42 °F
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7 DAY HOURLY FORECAST TABLES & GRAPHS
 
Tonight through Monday Night
 
  Tonight

Tonight: Patchy fog after 2am. Otherwise, clear, with a low around 42. Light northeast wind.
Clear then
Patchy Fog
   Lo 42 °F
 
Patchy fog after 2am. Otherwise, clear, with a low around 42. Light northeast wind. 		 
 
  Wednesday

Wednesday: Patchy fog before 10am. Otherwise, sunny, with a high near 70. Light north wind.
Patchy Fog
then Sunny
 		  Hi 70 °F
 
Patchy fog before 10am. Otherwise, sunny, with a high near 70. Light north wind. 		  Wednesday
Night
Wednesday Night: Patchy fog after 5am. Otherwise, mostly clear, with a low around 43. Calm wind.
Clear then
Patchy Fog
 		  Lo 43 °F
 
Patchy fog after 5am. Otherwise, mostly clear, with a low around 43. Calm wind. 		 
 
  Thursday

Thursday: Patchy fog before 10am. Otherwise, sunny, with a high near 69. Calm wind becoming northeast around 6 mph in the afternoon.
Patchy Fog
then Sunny
 		  Hi 69 °F
 
Patchy fog before 10am. Otherwise, sunny, with a high near 69. Calm wind becoming northeast around 6 mph in the afternoon. 		  Thursday
Night
Thursday Night: Mostly clear, with a low around 44. Light northeast wind.
Mostly Clear
 		  Lo 44 °F
 
Mostly clear, with a low around 44. Light northeast wind. 		 
 
  Friday

Friday: Sunny, with a high near 67.
Sunny
 		  Hi 67 °F
 
Sunny, with a high near 67. 		  Friday
Night
Friday Night: Clear, with a low around 40.
Clear
 		  Lo 40 °F
 
Clear, with a low around 40. 		 
 
  Saturday

Saturday: Sunny, with a high near 68.
Sunny
 		  Hi 68 °F
 
Sunny, with a high near 68. 		  Saturday
Night
Saturday Night: Mostly clear, with a low around 42.
Mostly Clear
 		  Lo 42 °F
 
Mostly clear, with a low around 42. 		 
 
  Sunday   Mostly sunny, with a high near 72.   Sunday Night   Partly cloudy, with a low around 45.  
 
  Monday   Mostly sunny, with a high near 72.   Monday Night   Partly cloudy, with a low around 47.  
 
 
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