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

Tonight: Partly cloudy, with a low around 58. Light northwest wind.
Partly Cloudy

 Juneteenth

Juneteenth: Sunny, with a high near 79. Light northwest wind increasing to 8 to 13 mph in the morning.
Sunny

 Friday
Night
Friday Night: Mostly clear, with a low around 58. Northwest wind 5 to 8 mph becoming calm in the evening.
Mostly Clear

 Saturday

Saturday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 81. Light southwest wind becoming west 9 to 14 mph in the morning. Chance of precipitation is 20%.
Sunny then
Slight Chance
T-storms
 Saturday
Night
Saturday Night: Partly cloudy, with a low around 61. West wind 5 to 7 mph becoming calm in the evening.
Partly Cloudy

 Sunday

Sunday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 82. 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. Mostly 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 58 °F Hi 79 °F Lo 58 °F Hi 81 °F Lo 61 °F Hi 82 °F Lo 65 °F Hi 79 °F Lo 59 °F

 

Tonight
 
 Partly cloudy, with a low around 58. Light northwest wind.
Juneteenth
 
 Sunny, with a high near 79. Light northwest wind increasing to 8 to 13 mph in the morning.
Friday Night
 
 Mostly clear, with a low around 58. Northwest wind 5 to 8 mph becoming calm in the evening.
Saturday
 
 A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 81. Light southwest wind becoming west 9 to 14 mph in the morning. Chance of precipitation is 20%.
Saturday Night
 
 Partly cloudy, with a low around 61. West wind 5 to 7 mph becoming calm in the evening.
Sunday
 
 A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 82. 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. Mostly 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 59.
Wednesday
 
 Mostly sunny, with a high near 80.
Wednesday Night
 
 Partly cloudy, with a low around 61.
Thursday
 
 Mostly sunny, with a high near 81.

 

Forecast from NOAA-NWS for Dayton OH.