Plainfield, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Plainfield, a village in Will County, Illinois.
This Afternoon
70°F
Chance Rain Showers
A chance of rain showers. Mostly cloudy. High near 70, with temperatures falling to around 68 in the afternoon. South wind around 15 mph, with gusts as high as 35 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Plainfield
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Chance Rain Showers | 15 mph S | 48% |
| Tonight | 59°F | Rain Showers | 15 mph SSE | 87% |
| Wednesday | 62°F | Chance Rain Showers | 15 mph SSW | 54% |
| Wednesday Night | 48°F | Mostly Cloudy | 15 mph SW | 14% |
| Thursday | 57°F | Chance Rain Showers | 10 to 15 mph WSW | 28% |
| Thursday Night | 43°F | Chance Rain Showers | 5 to 10 mph WNW | 34% |
| Friday | 52°F | Slight Chance Rain Showers | 10 mph N | 23% |
| Friday Night | 36°F | Partly Cloudy | 5 to 10 mph NNW | 5% |
| Saturday | 52°F | Mostly Sunny | 5 mph WNW | 6% |
| Saturday Night | 34°F | Partly Cloudy | 0 to 5 mph WSW | 3% |
| Sunday | 57°F | Mostly Sunny | 5 to 10 mph W | 13% |
| Sunday Night | 35°F | Mostly Clear | 5 mph WNW | 7% |
| Monday | 61°F | Sunny | 5 to 10 mph WSW | 3% |
| Monday Night | 39°F | Mostly Clear | 5 to 10 mph WSW | 2% |
Forecast source: National Weather Service (api.weather.gov) for Plainfield (41.630, -88.245). Updated through the day.
Growing snapshot for Plainfield
Last spring frost
Apr 20
First fall frost
Oct 22
Growing season
184 days
Hardiness zone
5b
More local growing data for Plainfield: nearby ZIP 60544 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Romeoville Wfo, Il (6.9 mi from Plainfield). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.