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
48°F
Mostly Cloudy
Mostly cloudy. Low around 48, with temperatures rising to around 50 overnight. West southwest wind 3 to 7 mph.
7-day forecast for Harrison Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 48°F | Mostly Cloudy | 3 to 7 mph WSW | 3% |
| Thursday | 63°F | Mostly Sunny | 3 to 9 mph SW | 0% |
| Thursday Night | 46°F | Mostly Cloudy | 5 mph W | 7% |
| Friday | 55°F | Mostly Cloudy | 2 to 7 mph NW | 6% |
| Friday Night | 37°F | Partly Cloudy | 3 to 7 mph NNW | 3% |
| Saturday | 53°F | Mostly Sunny | 5 mph NW | 0% |
| Saturday Night | 33°F | Mostly Clear | 3 mph NW | 0% |
| Sunday | 57°F | Sunny | 1 to 5 mph W | 0% |
| Sunday Night | 35°F | Mostly Clear | 3 mph WNW | 0% |
| Monday | 61°F | Sunny | 0 to 3 mph WNW | 0% |
| Monday Night | 39°F | Clear | 3 mph WSW | 0% |
| Tuesday | 63°F | Sunny | 3 mph W | 1% |
| Tuesday Night | 39°F | Mostly Clear | 2 mph WNW | 3% |
| Veterans Day | 62°F | Sunny | 3 mph N | 2% |
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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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 Nov 5, 2026.