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East Troy, WI Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for East Troy, a village in Walworth County, Wisconsin.

Overnight
61°F
Showers And Thunderstorms
Showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a low around 61. Southeast wind around 15 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

7-day forecast for East Troy

WhenTempForecastWindPrecip
Overnight 61°F Showers And Thunderstorms 15 mph SE 100%
Saturday 70°F Showers And Thunderstorms then Chance Showers And Thunderstorms 5 to 15 mph SE 100%
Saturday Night 60°F Showers And Thunderstorms 5 to 10 mph E 87%
Sunday 64°F Rain Showers Likely 10 to 15 mph NE 65%
Sunday Night 52°F Mostly Cloudy 10 to 15 mph NE 5%
Monday 62°F Cloudy 10 to 15 mph NE 13%
Monday Night 48°F Mostly Cloudy 5 to 15 mph NE 8%
Tuesday 61°F Partly Sunny 5 to 15 mph NE 8%
Tuesday Night 48°F Partly Cloudy 5 to 10 mph NE 4%
Wednesday 63°F Mostly Sunny 5 to 10 mph NE 4%
Wednesday Night 49°F Partly Cloudy 0 to 10 mph NE 1%
Thursday 66°F Mostly Sunny 0 to 10 mph NE 3%
Thursday Night 50°F Mostly Cloudy 0 to 5 mph NE 3%
Friday 69°F Mostly Sunny 0 to 10 mph NE 3%

Forecast source: National Weather Service (api.weather.gov) for East Troy (42.785, -88.396). Updated through the day.

Growing snapshot for East Troy

Last spring frost
May 5
First fall frost
Oct 10
Growing season
156 days
Hardiness zone
5b

More local growing data for East Troy: nearby ZIP 53120 weather · frost dates · planting calendar · Wisconsin frost dates

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Climate data from the nearest NOAA station, Rochester Wwtp, Wi (11 mi from East Troy). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.