Plainfield, IN Weather & Growing Conditions
This Afternoon
67°F
Slight Chance Light Rain
A slight chance of rain before 4pm. Cloudy. High near 67, with temperatures falling to around 62 in the afternoon. Southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 67°F | Slight Chance Light Rain | 15 mph SW | 21% |
| Tonight | 47°F | Mostly Cloudy | 6 to 12 mph SW | 6% |
| Thursday | 61°F | Partly Sunny | 8 to 15 mph SW | 1% |
| Thursday Night | 44°F | Mostly Cloudy | 3 to 8 mph W | 3% |
| Friday | 55°F | Mostly Cloudy | 3 to 12 mph NW | 13% |
| Friday Night | 37°F | Partly Cloudy | 7 to 10 mph NW | 5% |
| Saturday | 53°F | Mostly Sunny | 8 mph NW | 0% |
| Saturday Night | 34°F | Partly Cloudy | 6 mph NW | 1% |
| Sunday | 58°F | Sunny | 3 to 10 mph WNW | 2% |
| Sunday Night | 34°F | Mostly Clear | 3 to 7 mph W | 2% |
| Monday | 61°F | Sunny | 3 to 8 mph WSW | 2% |
| Monday Night | 39°F | Clear | 6 mph SW | 1% |
| Tuesday | 65°F | Sunny | 7 mph W | 1% |
| Tuesday Night | 39°F | Mostly Clear | 2 to 6 mph NNW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Plainfield, IN
Last spring frost
Apr 12
First fall frost
Oct 27
Growing season
196 days
Hardiness zone
6b
Explore more for Plainfield, IN: full frost dates · planting calendar · Indiana frost dates
Climate data from the nearest NOAA station, Indianapolis Nwfo, In (2.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.