Plainfield, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Plainfield, a town in Hendricks County, Indiana.
Today
82°F
Sunny
Sunny, with a high near 82. East northeast wind around 2 mph.
7-day forecast for Plainfield
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Sunny | 2 mph ENE | 0% |
| Tonight | 61°F | Mostly Clear | 2 mph NE | 0% |
| Wednesday | 84°F | Sunny | 0 to 3 mph WSW | 0% |
| Wednesday Night | 66°F | Partly Cloudy | 3 mph SSW | 5% |
| Thursday | 84°F | Scattered Showers And Thunderstorms | 2 to 7 mph SSW | 50% |
| Thursday Night | 67°F | Scattered Showers And Thunderstorms then Chance Showers And Thunderstorms | 2 to 6 mph SSW | 59% |
| Friday | 82°F | Scattered Showers And Thunderstorms | 2 to 6 mph SW | 47% |
| Friday Night | 66°F | Chance Showers And Thunderstorms | 2 to 6 mph SW | 40% |
| Saturday | 84°F | Slight Chance Showers And Thunderstorms | 2 to 6 mph SW | 20% |
| Saturday Night | 68°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph SSW | 20% |
| Sunday | 86°F | Mostly Sunny | 3 to 9 mph SW | 11% |
| Sunday Night | 70°F | Partly Cloudy | 8 mph SSW | 12% |
| Monday | 87°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 6 to 10 mph SW | 18% |
| 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 Plainfield (39.693, -86.372). Updated through the day.
Growing snapshot for Plainfield
Last spring frost
Apr 12
First fall frost
Oct 27
Growing season
196 days
Hardiness zone
6a
More local growing data for Plainfield: nearby ZIP 46168 weather · frost dates · planting calendar · Indiana frost dates
Nearby towns & communities
Amo
Avon
Belleville
Brownsburg
Cartersburg
Clayton
Clermont
Coatesville
Danville
Heritage Lake
Lizton
North Salem
Pittsboro
Climate data from the nearest NOAA station, Indianapolis Nwfo, In (6.1 mi from Plainfield). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.