Harrison, OH Weather & Growing Conditions
Tonight
61°F
Mostly Cloudy then Showers And Thunderstorms
A chance of rain showers between midnight and 4am, then showers and thunderstorms. Mostly cloudy, with a low around 61. South wind 7 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 61°F | Mostly Cloudy then Showers And Thunderstorms | 7 to 10 mph S | 85% |
| Wednesday | 69°F | Showers And Thunderstorms | 8 to 14 mph S | 98% |
| Wednesday Night | 48°F | Mostly Cloudy | 2 to 7 mph SW | 14% |
| Thursday | 67°F | Mostly Sunny | 3 to 10 mph SW | 0% |
| Thursday Night | 43°F | Partly Cloudy | 0 to 5 mph W | 1% |
| Friday | 62°F | Partly Sunny | 1 to 7 mph NW | 9% |
| Friday Night | 38°F | Slight Chance Light Rain | 6 mph NW | 15% |
| Saturday | 57°F | Slight Chance Light Rain then Mostly Sunny | 6 mph NW | 15% |
| Saturday Night | 33°F | Partly Cloudy | 0 to 3 mph NW | 5% |
| Sunday | 59°F | Mostly Sunny | 1 to 8 mph W | 7% |
| Sunday Night | 32°F | Partly Cloudy | 2 to 6 mph W | 12% |
| Monday | 61°F | Sunny | 2 to 8 mph W | 12% |
| Monday Night | 35°F | Mostly Clear | 6 mph SW | 10% |
| Tuesday | 65°F | Sunny | 5 to 8 mph W | 2% |
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 Nov 4, 2026.