Harrison, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Harrison, a city in Hamilton County, Ohio.
Tonight
62°F
Partly Cloudy then Patchy Fog
Patchy fog after midnight. Partly cloudy, with a low around 62. Northeast wind 2 to 7 mph.
7-day forecast for Harrison
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 62°F | Partly Cloudy then Patchy Fog | 2 to 7 mph NE | 3% |
| Saturday | 85°F | Areas Of Fog then Slight Chance Showers And Thunderstorms | 5 mph SE | 49% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms | 3 mph SE | 50% |
| Sunday | 86°F | Chance Showers And Thunderstorms | 2 to 6 mph SW | 42% |
| Sunday Night | 63°F | Chance Showers And Thunderstorms | 7 mph NE | 42% |
| Monday | 77°F | Chance Showers And Thunderstorms | 6 to 9 mph NE | 52% |
| Monday Night | 59°F | Chance Showers And Thunderstorms | 6 to 10 mph NE | 50% |
| Tuesday | 73°F | Chance Showers And Thunderstorms | 9 mph NE | 42% |
| Tuesday Night | 58°F | Chance Showers And Thunderstorms | 3 to 10 mph NE | 34% |
| Wednesday | 71°F | Slight Chance Rain Showers then Mostly Cloudy | 3 to 8 mph N | 23% |
| Wednesday Night | 57°F | Mostly Cloudy | 2 to 8 mph N | 14% |
| Thursday | 73°F | Partly Sunny | 3 to 7 mph N | 9% |
| Thursday Night | 56°F | Mostly Cloudy | 2 to 7 mph N | 8% |
| Friday | 73°F | Partly Sunny | 3 to 8 mph N | 5% |
Forecast source: National Weather Service (api.weather.gov) for Harrison (39.257, -84.786). Updated through the day.
Growing snapshot for Harrison
Last spring frost
Apr 16
First fall frost
Oct 28
Growing season
193 days
Hardiness zone
6b
More local growing data for Harrison: nearby ZIP 45030 weather · frost dates · planting calendar · Ohio frost dates
Nearby towns & communities
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Deer Park
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Delshire
Dent
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Dry Ridge
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Elizabethtown
Elmwood Place
Evendale
Fairfax
Finneytown
Forest Park
Forestville
Climate data from the nearest NOAA station, Cheviot 3 W, Oh (8.6 mi from Harrison). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.