Dayton, KY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Dayton, a city in Campbell County, Kentucky.
Tonight
62°F
Mostly Cloudy then Showers And Thunderstorms Likely
A chance of rain showers between 1am and 4am, then showers and thunderstorms likely. Mostly cloudy, with a low around 62. Southeast wind 7 to 12 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Dayton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 62°F | Mostly Cloudy then Showers And Thunderstorms Likely | 7 to 12 mph SE | 74% |
| Wednesday | 69°F | Showers And Thunderstorms | 10 to 14 mph S | 99% |
| Wednesday Night | 52°F | Chance Rain Showers | 3 to 8 mph SW | 31% |
| Thursday | 67°F | Mostly Sunny | 3 to 10 mph SW | 0% |
| Thursday Night | 46°F | Partly Cloudy | 0 to 5 mph W | 1% |
| Friday | 63°F | Partly Sunny | 0 to 8 mph NW | 6% |
| Friday Night | 41°F | Partly Cloudy | 6 mph NW | 13% |
| Saturday | 57°F | Mostly Sunny | 2 to 6 mph NW | 13% |
| Saturday Night | 37°F | Partly Cloudy | 0 to 3 mph NW | 10% |
| Sunday | 59°F | Mostly Sunny | 1 to 8 mph W | 7% |
| Sunday Night | 36°F | Partly Cloudy | 2 to 6 mph W | 13% |
| Monday | 61°F | Sunny | 2 to 9 mph W | 13% |
| Monday Night | 39°F | Mostly Clear | 6 mph SW | 9% |
| Tuesday | 65°F | Sunny | 5 to 8 mph W | 2% |
Forecast source: National Weather Service (api.weather.gov) for Dayton (39.112, -84.463). Updated through the day.
Growing snapshot for Dayton
Last spring frost
Apr 16
First fall frost
Oct 25
Growing season
190 days
Hardiness zone
6b
More local growing data for Dayton: nearby ZIP 41074 weather · frost dates · planting calendar · Kentucky frost dates
Nearby towns & communities
Alexandria
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Claryville
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Melbourne
Mentor
Newport
Ryland Heights
Silver Grove
Southgate
Woodlawn
Climate data from the nearest NOAA station, Cincinnati Lunken Ap, Oh (2.3 mi from Dayton). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.