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
84°F
Sunny
Sunny. High near 84, with temperatures falling to around 82 in the afternoon. Northeast wind around 2 mph.
7-day forecast for Heritage Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 84°F | Sunny | 2 mph NE | 0% |
| Tonight | 61°F | Mostly Clear | 2 mph E | 0% |
| Wednesday | 84°F | Sunny | 3 mph SSW | 0% |
| Wednesday Night | 66°F | Partly Cloudy | 3 mph S | 7% |
| Thursday | 82°F | Scattered Showers And Thunderstorms | 2 to 7 mph SSW | 48% |
| Thursday Night | 66°F | Scattered Showers And Thunderstorms then Chance Showers And Thunderstorms | 2 to 6 mph S | 59% |
| Friday | 82°F | Scattered Showers And Thunderstorms | 2 to 6 mph SW | 35% |
| Friday Night | 66°F | Scattered Showers And Thunderstorms | 1 to 6 mph SSW | 35% |
| Saturday | 83°F | Slight Chance Showers And Thunderstorms | 2 to 7 mph SW | 21% |
| Saturday Night | 68°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph SSW | 19% |
| Sunday | 85°F | Sunny | 5 to 9 mph SW | 11% |
| Sunday Night | 70°F | Partly Cloudy | 8 mph SSW | 12% |
| Monday | 86°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 6 to 9 mph SW | 19% |
| Monday Night | 70°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 8 mph SW | 31% |
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
Cartersburg
Clayton
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 Aug 4, 2026.