Dayton, OH Weather & Growing Conditions
Tonight
69°F
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms before 11pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 69. South wind around 7 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 69°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 7 mph S | 37% |
| Sunday | 86°F | Slight Chance Showers And Thunderstorms | 6 to 9 mph W | 61% |
| Sunday Night | 60°F | Showers And Thunderstorms Likely | 12 mph N | 62% |
| Monday | 72°F | Chance Showers And Thunderstorms | 10 to 14 mph NE | 40% |
| Monday Night | 56°F | Chance Rain Showers | 9 to 15 mph NE | 40% |
| Tuesday | 73°F | Chance Rain Showers | 9 to 13 mph NE | 26% |
| Tuesday Night | 59°F | Chance Rain Showers | 8 to 14 mph NE | 34% |
| Wednesday | 72°F | Rain Showers Likely | 10 mph NE | 61% |
| Wednesday Night | 57°F | Showers And Thunderstorms Likely | 8 to 13 mph NE | 61% |
| Thursday | 72°F | Slight Chance Rain Showers | 9 mph E | 19% |
| Thursday Night | 56°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 9 mph NE | 17% |
| Friday | 74°F | Partly Sunny | 6 to 10 mph NE | 9% |
| Friday Night | 54°F | Partly Cloudy | 5 to 10 mph NE | 6% |
| Saturday | 75°F | Mostly Sunny | 6 to 9 mph NE | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Dayton, OH
Last spring frost
Apr 18
First fall frost
Oct 25
Growing season
189 days
Hardiness zone
6b
Explore more for Dayton, OH: full frost dates · planting calendar · Ohio frost dates
Climate data from the nearest NOAA station, Dayton Mcd, Oh (0.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.