Harrison, OH Weather & Growing Conditions
Today
89°F
Partly Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms between 3pm and 4pm, then showers and thunderstorms likely. Some of the storms could produce heavy rain. Partly sunny, with a high near 89. Southeast wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 89°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 5 mph SE | 68% |
| Tonight | 68°F | Showers And Thunderstorms Likely | 3 mph S | 60% |
| Sunday | 88°F | Mostly Sunny then Chance Showers And Thunderstorms | 6 mph SW | 27% |
| Sunday Night | 61°F | Chance Showers And Thunderstorms | 6 to 9 mph N | 53% |
| Monday | 73°F | Chance Rain Showers | 7 to 10 mph NE | 54% |
| Monday Night | 56°F | Chance Showers And Thunderstorms | 7 to 10 mph NE | 50% |
| Tuesday | 72°F | Chance Showers And Thunderstorms | 9 mph NE | 31% |
| Tuesday Night | 57°F | Chance Showers And Thunderstorms | 3 to 10 mph NE | 37% |
| Wednesday | 72°F | Chance Rain Showers | 3 to 7 mph NE | 40% |
| Wednesday Night | 56°F | Chance Showers And Thunderstorms | 2 to 7 mph N | 40% |
| Thursday | 72°F | Mostly Cloudy | 2 to 8 mph N | 14% |
| Thursday Night | 55°F | Mostly Cloudy | 2 to 8 mph N | 14% |
| Friday | 73°F | Mostly Sunny | 3 to 8 mph NE | 8% |
| Friday Night | 52°F | Partly Cloudy | 3 to 8 mph NE | 5% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Harrison, OH
Last spring frost
Apr 16
First fall frost
Oct 28
Growing season
193 days
Hardiness zone
6b
Explore more for Harrison, OH: full frost dates · planting calendar · Ohio frost dates
Climate data from the nearest NOAA station, Cheviot 3 W, Oh (8.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.