West Harrison, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for West Harrison, a town in Dearborn County, Indiana.
This Afternoon
88°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 5pm, then showers and thunderstorms likely. Some of the storms could produce heavy rain. Mostly cloudy, with a high near 88. West wind around 7 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast for West Harrison
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 88°F | Chance Showers And Thunderstorms | 7 mph W | 68% |
| Tonight | 68°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 6 mph S | 65% |
| Sunday | 89°F | Mostly Sunny then Chance Showers And Thunderstorms | 3 to 8 mph SW | 33% |
| Sunday Night | 61°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 8 mph N | 58% |
| Monday | 73°F | Chance Showers And Thunderstorms | 7 to 10 mph NE | 46% |
| Monday Night | 55°F | Chance Showers And Thunderstorms | 5 to 10 mph NE | 46% |
| Tuesday | 74°F | Chance Rain Showers | 6 to 9 mph NE | 35% |
| Tuesday Night | 58°F | Chance Rain Showers | 3 to 9 mph NE | 40% |
| Wednesday | 72°F | Chance Showers And Thunderstorms | 3 to 7 mph NE | 51% |
| Wednesday Night | 57°F | Chance Showers And Thunderstorms | 2 to 8 mph NE | 51% |
| Thursday | 73°F | Mostly Cloudy | 2 to 7 mph NE | 14% |
| Thursday Night | 55°F | Mostly Cloudy | 2 to 7 mph NE | 11% |
| Friday | 74°F | Partly Sunny | 2 to 8 mph NE | 6% |
| Friday Night | 53°F | Partly Cloudy | 2 to 8 mph NE | 6% |
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.