Harrison Lake, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Harrison Lake, a community in Bartholomew County, Indiana.
Tonight
68°F
Partly Cloudy
Partly cloudy, with a low around 68. East wind 3 to 7 mph.
7-day forecast for Harrison Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 68°F | Partly Cloudy | 3 to 7 mph E | 13% |
| Saturday | 89°F | Mostly Sunny then Scattered Showers And Thunderstorms | 6 mph SSE | 40% |
| Saturday Night | 71°F | Scattered Showers And Thunderstorms | 5 mph S | 36% |
| Sunday | 88°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 3 mph W | 25% |
| Sunday Night | 66°F | Chance Showers And Thunderstorms | 3 to 8 mph NNE | 41% |
| Monday | 76°F | Showers And Thunderstorms Likely | 7 mph NE | 60% |
| Monday Night | 60°F | Chance Showers And Thunderstorms | 7 to 10 mph NE | 54% |
| Tuesday | 72°F | Chance Showers And Thunderstorms | 8 mph NE | 48% |
| Tuesday Night | 59°F | Chance Showers And Thunderstorms then Mostly Cloudy | 5 to 10 mph NNE | 43% |
| Wednesday | 70°F | Mostly Cloudy | 6 mph NNE | 9% |
| Wednesday Night | 58°F | Mostly Cloudy | 3 to 7 mph N | 7% |
| Thursday | 71°F | Partly Sunny | 5 mph N | 6% |
| Thursday Night | 58°F | Mostly Cloudy | 5 mph NNE | 6% |
| Friday | 72°F | Mostly Sunny | 6 mph NNE | 4% |
Forecast source: National Weather Service (api.weather.gov) for Harrison Lake (39.185, -86.026). Updated through the day.
Growing snapshot for Harrison Lake
Last spring frost
Apr 11
First fall frost
Oct 25
Growing season
195 days
Hardiness zone
6b
More local growing data for Harrison Lake: nearby ZIP 47201 weather · frost dates · planting calendar · Indiana frost dates
Nearby towns & communities
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Columbus
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Jonesville
Mineral Springs
Newbern
Petersville
Reddington
Schaefer Lake
Taylorsville
Walesboro
Waynesville
Climate data from the nearest NOAA station, Columbus, In (4.3 mi from Harrison Lake). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.