Harrison Lake, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Harrison Lake, a community in Bartholomew County, Indiana.
Today
83°F
Sunny
Sunny. High near 83, with temperatures falling to around 81 in the afternoon. Northeast wind around 2 mph.
7-day forecast for Harrison Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Sunny | 2 mph NE | 0% |
| Tonight | 64°F | Mostly Clear | 2 mph NNE | 0% |
| Wednesday | 86°F | Sunny | 1 mph NW | 0% |
| Wednesday Night | 68°F | Mostly Clear | 2 mph SSE | 2% |
| Thursday | 86°F | Mostly Sunny then Scattered Showers And Thunderstorms | 3 mph SSW | 27% |
| Thursday Night | 69°F | Scattered Showers And Thunderstorms then Chance Showers And Thunderstorms | 3 mph S | 63% |
| Friday | 84°F | Chance Showers And Thunderstorms then Isolated Showers And Thunderstorms | 3 mph SW | 60% |
| Friday Night | 69°F | Chance Showers And Thunderstorms | 3 mph SW | 59% |
| Saturday | 85°F | Chance Showers And Thunderstorms | 3 mph SW | 25% |
| Saturday Night | 69°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 mph SSW | 20% |
| Sunday | 87°F | Mostly Sunny | 5 mph SSW | 12% |
| Sunday Night | 72°F | Partly Cloudy | 5 mph SSW | 12% |
| Monday | 88°F | Mostly Sunny | 6 mph SW | 14% |
| Monday Night | 72°F | Chance Showers And Thunderstorms | 5 mph SW | 29% |
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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Clifford
Columbus
Elizabethtown
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Grandview Lake
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Hope
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 Aug 4, 2026.