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
86°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 5pm. Partly sunny. High near 86, with temperatures falling to around 82 in the afternoon. Southeast wind around 5 mph. Chance of precipitation is 60%.
7-day forecast for Heritage Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 86°F | Chance Showers And Thunderstorms | 5 mph SE | 55% |
| Tonight | 66°F | Chance Showers And Thunderstorms | 9 mph E | 43% |
| Saturday | 87°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 8 mph S | 42% |
| Saturday Night | 69°F | Chance Showers And Thunderstorms | 6 mph S | 42% |
| Sunday | 86°F | Chance Showers And Thunderstorms | 3 to 7 mph W | 31% |
| Sunday Night | 61°F | Showers And Thunderstorms Likely | 8 to 12 mph NE | 59% |
| Monday | 73°F | Showers And Thunderstorms Likely | 13 mph NE | 59% |
| Monday Night | 56°F | Chance Showers And Thunderstorms | 10 to 15 mph NE | 50% |
| Tuesday | 70°F | Chance Showers And Thunderstorms | 13 mph NE | 35% |
| Tuesday Night | 55°F | Chance Showers And Thunderstorms then Mostly Cloudy | 6 to 13 mph NNE | 25% |
| Wednesday | 70°F | Mostly Cloudy | 6 to 10 mph NNE | 5% |
| Wednesday Night | 55°F | Mostly Cloudy | 5 to 10 mph NNE | 5% |
| Thursday | 71°F | Partly Sunny | 5 to 9 mph N | 4% |
| Thursday Night | 56°F | Mostly Cloudy | 5 to 9 mph NNE | 4% |
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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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 Sep 18, 2026.