Plainfield, WI Weather & Growing Conditions
Tonight
57°F
Rain Showers
Rain showers and patchy fog. Cloudy. Low around 57, with temperatures rising to around 59 overnight. South southeast wind around 10 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 57°F | Rain Showers | 10 mph SSE | 79% |
| Wednesday | 61°F | Chance Rain Showers | 9 to 13 mph SSW | 53% |
| Wednesday Night | 43°F | Rain Showers | 6 to 10 mph SW | 82% |
| Thursday | 52°F | Rain Showers | 6 to 13 mph NW | 87% |
| Thursday Night | 34°F | Chance Rain Showers then Mostly Cloudy | 13 mph N | 30% |
| Friday | 46°F | Partly Sunny | 6 to 13 mph N | 8% |
| Friday Night | 27°F | Partly Cloudy | 2 mph N | 2% |
| Saturday | 50°F | Mostly Sunny | 0 to 5 mph W | 0% |
| Saturday Night | 31°F | Partly Cloudy | 1 to 5 mph WSW | 13% |
| Sunday | 56°F | Slight Chance Rain Showers | 5 to 10 mph WNW | 16% |
| Sunday Night | 32°F | Mostly Clear | 2 to 6 mph WSW | 3% |
| Monday | 58°F | Mostly Sunny | 3 to 12 mph SW | 1% |
| Monday Night | 36°F | Partly Cloudy | 8 mph W | 0% |
| Tuesday | 57°F | Sunny | 7 to 10 mph WNW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Plainfield, WI
Last spring frost
May 10
First fall frost
Oct 3
Growing season
146 days
Hardiness zone
4b
Explore more for Plainfield, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Hancock Exp Farm, Wi (6.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.