Plainfield, WI Weather & Growing Conditions
Overnight
57°F
Chance Rain Showers
A chance of rain showers and patchy fog. Cloudy. Low around 57, with temperatures rising to around 59 overnight. South southeast wind around 9 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 57°F | Chance Rain Showers | 9 mph SSE | 43% |
| Wednesday | 60°F | Chance Rain Showers | 9 to 13 mph SSW | 53% |
| Wednesday Night | 42°F | Rain Showers | 6 to 10 mph SW | 82% |
| Thursday | 51°F | Rain Showers Likely | 6 to 13 mph NW | 67% |
| Thursday Night | 31°F | Mostly Cloudy | 8 to 13 mph N | 5% |
| Friday | 46°F | Partly Sunny | 3 to 10 mph N | 0% |
| Friday Night | 25°F | Mostly Clear | 2 mph N | 0% |
| Saturday | 49°F | Sunny | 0 to 6 mph WNW | 0% |
| Saturday Night | 30°F | Mostly Clear | 2 to 6 mph W | 4% |
| Sunday | 54°F | Sunny | 7 to 12 mph W | 8% |
| Sunday Night | 30°F | Mostly Clear | 2 to 6 mph W | 1% |
| Monday | 58°F | Mostly Sunny | 2 to 10 mph WSW | 0% |
| Monday Night | 35°F | Partly Cloudy | 7 mph W | 1% |
| Tuesday | 57°F | Sunny | 5 to 9 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.