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Turtle Lake, WI Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Turtle Lake, a community in Walworth County, Wisconsin.

Tonight
62°F
Showers And Thunderstorms
Showers and thunderstorms. Some of the storms could produce heavy rain. Mostly cloudy, with a low around 62. East wind 10 to 15 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

7-day forecast for Turtle Lake

WhenTempForecastWindPrecip
Tonight 62°F Showers And Thunderstorms 10 to 15 mph E 91%
Saturday 71°F Showers And Thunderstorms 5 to 10 mph SE 98%
Saturday Night 59°F Showers And Thunderstorms 5 to 10 mph NE 80%
Sunday 65°F Chance Rain Showers 10 to 15 mph NE 44%
Sunday Night 53°F Slight Chance Rain Showers then Mostly Cloudy 10 to 15 mph NE 15%
Monday 62°F Slight Chance Rain Showers 15 mph NE 23%
Monday Night 48°F Slight Chance Rain Showers 10 to 15 mph NE 22%
Tuesday 61°F Slight Chance Rain Showers then Partly Sunny 10 to 15 mph NE 16%
Tuesday Night 47°F Mostly Cloudy 5 to 10 mph NE 10%
Wednesday 64°F Partly Sunny 5 to 10 mph NE 7%
Wednesday Night 48°F Partly Cloudy 0 to 5 mph NE 3%
Thursday 66°F Partly Sunny 0 to 5 mph NE 4%
Thursday Night 50°F Partly Cloudy 0 to 5 mph NE 5%
Friday 68°F Mostly Sunny 0 to 5 mph NE 5%

Forecast source: National Weather Service (api.weather.gov) for Turtle Lake (42.732, -88.678). Updated through the day.

Growing snapshot for Turtle Lake

Last spring frost
Apr 28
First fall frost
Oct 14
Growing season
168 days
Hardiness zone
5b

More local growing data for Turtle Lake: nearby ZIP 53115 weather · frost dates · planting calendar · Wisconsin frost dates

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Climate data from the nearest NOAA station, Delavan Wwtp, Wi (1.4 mi from Turtle Lake). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.