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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| 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
Nearby towns & communities
Allens Grove
Big Foot Prairie
Bloomfield
Como
Darien
Delavan
Delavan Lake
East Troy
Elkhorn
Fontana-on-Geneva Lake
Genoa City
Lake Geneva
Lake Ivanhoe
Lake Lorraine
Lauderdale Lakes
Lyons
Powers Lake
Sharon
Springfield
Walworth
Whitewater
Williams Bay
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.