Heritage Lake, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Heritage Lake, a community in Hendricks County, Indiana.
This Afternoon
68°F
Mostly Cloudy
Mostly cloudy. High near 68, with temperatures falling to around 61 in the afternoon. West southwest wind 12 to 15 mph, with gusts as high as 23 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Heritage Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Mostly Cloudy | 12 to 15 mph WSW | 13% |
| Tonight | 47°F | Mostly Cloudy | 6 to 12 mph WSW | 6% |
| Thursday | 61°F | Partly Sunny | 8 to 14 mph SW | 1% |
| Thursday Night | 43°F | Slight Chance Light Rain then Mostly Cloudy | 3 to 8 mph W | 19% |
| Friday | 52°F | Mostly Cloudy | 7 to 12 mph NNW | 10% |
| Friday Night | 34°F | Partly Cloudy | 5 to 10 mph NNW | 4% |
| Saturday | 52°F | Sunny | 3 to 8 mph NW | 0% |
| Saturday Night | 30°F | Mostly Clear | 1 to 5 mph NW | 0% |
| Sunday | 57°F | Sunny | 2 to 9 mph W | 0% |
| Sunday Night | 33°F | Mostly Clear | 2 to 6 mph WNW | 0% |
| Monday | 61°F | Sunny | 1 to 8 mph WSW | 0% |
| Monday Night | 38°F | Clear | 6 mph SW | 0% |
| Tuesday | 63°F | Sunny | 3 to 7 mph W | 2% |
| Tuesday Night | 38°F | Mostly Clear | 1 to 5 mph NW | 2% |
Forecast source: National Weather Service (api.weather.gov) for Heritage Lake (39.737, -86.707). Updated through the day.
Growing snapshot for Heritage Lake
Last spring frost
Apr 27
First fall frost
Oct 15
Growing season
169 days
Hardiness zone
6a
More local growing data for Heritage Lake: nearby ZIP 46121 weather · frost dates · planting calendar · Indiana frost dates
Nearby towns & communities
Amo
Avon
Belleville
Brownsburg
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Clermont
Coatesville
Danville
Lizton
North Salem
Pittsboro
Plainfield
Climate data from the nearest NOAA station, Greencastle 1 W, In (10.8 mi from Heritage Lake). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.