National Weather Service Forecast for: Hamilton OH
Issued by: National Weather Service Wilmington, OH
Updated: 4:00 pm EDT Jun 18, 2026
 
Tonight

Tonight: Patchy fog after 4am. Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 57. Calm wind.
Mostly Cloudy
then Patchy
Fog
 Juneteenth

Juneteenth: Patchy fog before 9am. Otherwise, sunny, with a high near 79. Calm wind becoming northwest 5 to 9 mph in the afternoon.
Patchy Fog
then Sunny

 Friday
Night
Friday Night: Partly cloudy, with a low around 58. Northwest wind around 5 mph becoming calm in the evening.
Partly Cloudy

 Saturday

Saturday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 81. Calm wind becoming west 5 to 9 mph in the afternoon. Chance of precipitation is 20%.
Mostly Sunny
then Slight
Chance
T-storms
 Saturday
Night
Saturday Night: Partly cloudy, with a low around 61. West wind around 5 mph becoming calm in the evening.
Partly Cloudy

 Sunday

Sunday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Partly Sunny
then Chance
T-storms
 Sunday
Night
Sunday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8pm. Low around 65. Chance of precipitation is 90%.
Showers

 Monday

Monday: Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm. Cloudy, with a high near 79. Chance of precipitation is 70%.
Showers
Likely

 Monday
Night
Monday Night: A chance of showers before 8pm. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.
Chance
Showers then
Partly Cloudy
Lo 57 °F Hi 79 °F Lo 58 °F Hi 81 °F Lo 61 °F Hi 83 °F Lo 65 °F Hi 79 °F Lo 59 °F

 

Tonight
 
 Patchy fog after 4am. Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 57. Calm wind.
Juneteenth
 
 Patchy fog before 9am. Otherwise, sunny, with a high near 79. Calm wind becoming northwest 5 to 9 mph in the afternoon.
Friday Night
 
 Partly cloudy, with a low around 58. Northwest wind around 5 mph becoming calm in the evening.
Saturday
 
 A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 81. Calm wind becoming west 5 to 9 mph in the afternoon. Chance of precipitation is 20%.
Saturday Night
 
 Partly cloudy, with a low around 61. West wind around 5 mph becoming calm in the evening.
Sunday
 
 A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
 
 A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8pm. Low around 65. Chance of precipitation is 90%.
Monday
 
 Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm. Cloudy, with a high near 79. Chance of precipitation is 70%.
Monday Night
 
 A chance of showers before 8pm. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.
Tuesday
 
 Mostly sunny, with a high near 79.
Tuesday Night
 
 Partly cloudy, with a low around 58.
Wednesday
 
 Mostly sunny, with a high near 80.
Wednesday Night
 
 Partly cloudy, with a low around 60.
Thursday
 
 Mostly sunny, with a high near 81.

 

Forecast from NOAA-NWS for Hamilton OH.