Plainfield, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Plainfield, a town in Hendricks County, Indiana.
This Afternoon
69°F
Slight Chance Light Rain
A slight chance of rain before 4pm. Cloudy. High near 69, with temperatures falling to around 63 in the afternoon. Southwest wind around 15 mph, with gusts as high as 24 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Plainfield
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 69°F | Slight Chance Light Rain | 15 mph SW | 15% |
| Tonight | 47°F | Mostly Cloudy | 6 to 12 mph SW | 6% |
| Thursday | 61°F | Partly Sunny | 7 to 15 mph SW | 1% |
| Thursday Night | 44°F | Slight Chance Light Rain then Mostly Cloudy | 5 to 8 mph W | 17% |
| Friday | 53°F | Mostly Cloudy | 6 to 13 mph NNW | 12% |
| Friday Night | 35°F | Partly Cloudy | 5 to 10 mph NNW | 6% |
| Saturday | 53°F | Mostly Sunny | 5 to 8 mph NW | 0% |
| Saturday Night | 31°F | Partly Cloudy | 2 to 6 mph NW | 0% |
| Sunday | 57°F | Sunny | 2 to 9 mph W | 0% |
| Sunday Night | 34°F | Mostly Clear | 2 to 7 mph WNW | 0% |
| Monday | 61°F | Sunny | 1 to 8 mph W | 0% |
| Monday Night | 38°F | Clear | 7 mph SW | 0% |
| Tuesday | 63°F | Sunny | 7 mph W | 2% |
| Tuesday Night | 38°F | Mostly Clear | 1 to 6 mph NW | 2% |
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
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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 Nov 4, 2026.