Harrison, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Harrison, a city in Hamilton County, Ohio.
Today
85°F
Sunny
Sunny, with a high near 85. Northeast wind around 3 mph.
7-day forecast for Harrison
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Sunny | 3 mph NE | 0% |
| Tonight | 63°F | Mostly Clear | 2 mph N | 1% |
| Wednesday | 88°F | Sunny | 0 to 3 mph NW | 11% |
| Wednesday Night | 66°F | Mostly Clear | 2 mph NW | 3% |
| Thursday | 88°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 6 mph SW | 23% |
| Thursday Night | 68°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 3 mph SW | 62% |
| Friday | 86°F | Showers And Thunderstorms Likely | 1 to 6 mph SW | 66% |
| Friday Night | 67°F | Showers And Thunderstorms Likely | 0 to 3 mph SW | 66% |
| Saturday | 86°F | Chance Showers And Thunderstorms | 0 to 6 mph SW | 36% |
| Saturday Night | 67°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 3 mph SW | 32% |
| Sunday | 89°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 7 mph SW | 15% |
| Sunday Night | 70°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph SW | 15% |
| Monday | 90°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 to 8 mph SW | 21% |
| Monday Night | 70°F | Chance Showers And Thunderstorms | 2 to 6 mph SW | 28% |
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
Addyston
Amberley
Arlington Heights
Blue Ash
Blue Jay
Brecon
Bridgetown
Camp Dennison
Cherry Grove
Cheviot
Cincinnati
Cleves
Coldstream
Concorde Hills
Covedale
Deer Park
Delhi Hills
Delshire
Dent
Dillonvale
Dry Ridge
Dry Run
Dunlap
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 Aug 4, 2026.