West Harrison, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for West Harrison, a town in Dearborn County, Indiana.
Today
89°F
Partly Sunny then Showers And Thunderstorms Likely
Showers and thunderstorms likely after 3pm. Some of the storms could produce heavy rain. Partly sunny, with a high near 89. South wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for West Harrison
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 89°F | Partly Sunny then Showers And Thunderstorms Likely | 5 mph S | 68% |
| Tonight | 68°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 3 mph SE | 58% |
| Sunday | 89°F | Mostly Sunny then Chance Showers And Thunderstorms | 6 mph W | 27% |
| Sunday Night | 61°F | Chance Showers And Thunderstorms | 6 to 9 mph N | 53% |
| Monday | 73°F | Chance Rain Showers | 9 mph NE | 54% |
| Monday Night | 55°F | Chance Showers And Thunderstorms | 7 to 10 mph NE | 50% |
| Tuesday | 72°F | Chance Showers And Thunderstorms | 9 mph NE | 32% |
| Tuesday Night | 57°F | Chance Showers And Thunderstorms | 3 to 10 mph NE | 37% |
| Wednesday | 72°F | Chance Rain Showers | 6 mph NE | 37% |
| Wednesday Night | 56°F | Chance Showers And Thunderstorms | 2 to 8 mph N | 37% |
| 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) for West Harrison (39.258, -84.822). Updated through the day.
Growing snapshot for West Harrison
Last spring frost
Apr 20
First fall frost
Oct 21
Growing season
182 days
Hardiness zone
6b
More local growing data for West Harrison: nearby ZIP 47060 weather · frost dates · planting calendar · Indiana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Brookville, In (12 mi from West Harrison). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.