East Troy, WI Weather & Growing Conditions
This Afternoon
68°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Cloudy, with a high near 68. East wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Chance Showers And Thunderstorms | 5 mph E | 35% |
| Tonight | 61°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 5 to 10 mph NE | 91% |
| Sunday | 65°F | Chance Rain Showers then Cloudy | 10 to 15 mph NE | 64% |
| Sunday Night | 53°F | Mostly Cloudy | 10 to 15 mph NE | 3% |
| Monday | 62°F | Cloudy | 10 to 15 mph NE | 7% |
| Monday Night | 49°F | Mostly Cloudy then Chance Rain Showers | 5 to 10 mph NE | 25% |
| Tuesday | 60°F | Chance Rain Showers | 5 to 15 mph NE | 25% |
| Tuesday Night | 48°F | Mostly Cloudy | 5 to 10 mph NE | 9% |
| Wednesday | 62°F | Partly Sunny | 5 to 10 mph NE | 7% |
| Wednesday Night | 50°F | Mostly Cloudy | 0 to 10 mph NE | 4% |
| Thursday | 66°F | Partly Sunny | 0 to 5 mph NE | 2% |
| Thursday Night | 51°F | Mostly Cloudy | 0 to 5 mph NE | 8% |
| Friday | 69°F | Partly Sunny | 0 to 5 mph NE | 6% |
| Friday Night | 51°F | Partly Cloudy | 0 to 5 mph NE | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for East Troy, WI
Last spring frost
May 5
First fall frost
Oct 10
Growing season
156 days
Hardiness zone
5b
Explore more for East Troy, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Rochester Wwtp, Wi (11 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.