National Weather Service Forecast for: Dayton OH
Issued by: National Weather Service Wilmington, OH
Updated: 4:00 am EDT Jun 22, 2026
 
Overnight

Overnight: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. South wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Showers
Likely
 Monday

Monday: Showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm. High near 78. Southwest wind 9 to 14 mph becoming northwest in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Showers

 Monday
Night
Monday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 57. North wind 9 to 14 mph becoming light after midnight.
Decreasing
Clouds
 Tuesday

Tuesday: Sunny, with a high near 80. North wind 6 to 9 mph.
Sunny

 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 57. Northwest wind 5 to 7 mph becoming calm in the evening.
Mostly Clear

 Wednesday

Wednesday: Mostly sunny, with a high near 81.
Mostly Sunny

 Wednesday
Night
Wednesday Night: A chance of showers. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.
Chance
Showers
 Thursday

Thursday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 40%.
Partly Sunny
then Chance
T-storms
 Thursday
Night
Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.
Chance
T-storms
Lo 64 °F Hi 78 °F Lo 57 °F Hi 80 °F Lo 57 °F Hi 81 °F Lo 64 °F Hi 83 °F Lo 64 °F

 

Overnight
 
 Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. South wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
 
 Showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm. High near 78. Southwest wind 9 to 14 mph becoming northwest in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
 
 Mostly cloudy, then gradually becoming mostly clear, with a low around 57. North wind 9 to 14 mph becoming light after midnight.
Tuesday
 
 Sunny, with a high near 80. North wind 6 to 9 mph.
Tuesday Night
 
 Mostly clear, with a low around 57. Northwest wind 5 to 7 mph becoming calm in the evening.
Wednesday
 
 Mostly sunny, with a high near 81.
Wednesday Night
 
 A chance of showers. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.
Thursday
 
 A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 40%.
Thursday Night
 
 A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.
Friday
 
 A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 30%.
Friday Night
 
 A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 40%.
Saturday
 
 A chance of showers and thunderstorms. Partly sunny, with a high near 83. Chance of precipitation is 40%.
Saturday Night
 
 A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 40%.
Sunday
 
 A chance of showers and thunderstorms. Partly sunny, with a high near 88. Chance of precipitation is 30%.

 

Forecast from NOAA-NWS for Dayton OH.