Dayton, KY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Dayton, a city in Campbell County, Kentucky.
Tonight
64°F
Partly Cloudy then Widespread Fog
Widespread fog after midnight. Partly cloudy, with a low around 64. Northeast wind 2 to 6 mph.
7-day forecast for Dayton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 64°F | Partly Cloudy then Widespread Fog | 2 to 6 mph NE | 2% |
| Saturday | 87°F | Widespread Fog then Chance Showers And Thunderstorms | 5 mph SE | 41% |
| Saturday Night | 69°F | Chance Showers And Thunderstorms | 3 mph S | 48% |
| Sunday | 88°F | Chance Showers And Thunderstorms | 6 mph SW | 40% |
| Sunday Night | 65°F | Chance Showers And Thunderstorms | 8 mph NE | 40% |
| Monday | 80°F | Chance Showers And Thunderstorms | 6 to 9 mph NE | 44% |
| Monday Night | 61°F | Chance Showers And Thunderstorms | 7 to 10 mph NE | 50% |
| Tuesday | 75°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 6 to 9 mph NE | 43% |
| Tuesday Night | 61°F | Chance Showers And Thunderstorms | 3 to 10 mph NE | 38% |
| Wednesday | 74°F | Chance Rain Showers | 3 to 8 mph N | 38% |
| Wednesday Night | 59°F | Chance Showers And Thunderstorms then Mostly Cloudy | 3 to 8 mph N | 28% |
| Thursday | 74°F | Partly Sunny | 3 to 8 mph N | 11% |
| Thursday Night | 58°F | Mostly Cloudy | 2 to 8 mph N | 11% |
| Friday | 74°F | Partly Sunny | 3 to 8 mph N | 6% |
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
Bellevue
Claryville
Cold Spring
Crestview
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Highland Heights
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 Sep 19, 2026.