Wilton, WI Weather & Growing Conditions
Today
79°F
Scattered Rain Showers then Mostly Cloudy
Scattered rain showers between 8am and noon. Mostly cloudy. High near 79, with temperatures falling to around 76 in the afternoon. West wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 79°F | Scattered Rain Showers then Mostly Cloudy | 6 to 10 mph W | 32% |
| Tonight | 59°F | Scattered Showers And Thunderstorms | 1 to 5 mph NW | 42% |
| Wednesday | 78°F | Partly Sunny | 0 to 5 mph NW | 6% |
| Wednesday Night | 54°F | Partly Cloudy | 0 to 3 mph SW | 1% |
| Thursday | 82°F | Sunny | 0 to 5 mph SW | 1% |
| Thursday Night | 58°F | Mostly Clear | 1 to 5 mph SW | 0% |
| Friday | 85°F | Sunny | 2 to 10 mph SW | 4% |
| Friday Night | 62°F | Mostly Clear | 5 to 10 mph SW | 13% |
| Saturday | 86°F | Mostly Sunny | 5 to 9 mph SW | 10% |
| Saturday Night | 66°F | Partly Cloudy then Chance Rain Showers | 5 to 9 mph SW | 35% |
| Sunday | 86°F | Chance Rain Showers | 5 to 10 mph W | 35% |
| Sunday Night | 64°F | Chance Showers And Thunderstorms | 2 to 8 mph S | 43% |
| Monday | 84°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 2 to 7 mph S | 43% |
| Monday Night | 64°F | Chance Showers And Thunderstorms | 2 to 7 mph N | 29% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Wilton, WI
Last spring frost
May 5
First fall frost
Oct 4
Growing season
153 days
Hardiness zone
5a
Explore more for Wilton, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Hillsboro, Wi (14.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.