Turtle Lake, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Turtle Lake, a community in Walworth County, Wisconsin.
Today
71°F
Showers And Thunderstorms
Showers and thunderstorms likely before 10am, then a chance of showers and thunderstorms between 10am and noon, then showers and thunderstorms. Cloudy, with a high near 71. Southeast wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
7-day forecast for Turtle Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 71°F | Showers And Thunderstorms | 5 to 10 mph SE | 77% |
| Tonight | 60°F | Showers And Thunderstorms | 5 to 10 mph E | 87% |
| Sunday | 65°F | Rain Showers Likely | 10 to 15 mph NE | 69% |
| Sunday Night | 52°F | Mostly Cloudy | 10 to 15 mph NE | 9% |
| Monday | 62°F | Slight Chance Rain Showers | 10 to 15 mph NE | 15% |
| Monday Night | 48°F | Mostly Cloudy | 5 to 15 mph NE | 11% |
| Tuesday | 60°F | Partly Sunny | 5 to 15 mph NE | 11% |
| Tuesday Night | 47°F | Partly Cloudy | 5 to 10 mph NE | 5% |
| Wednesday | 63°F | Mostly Sunny | 5 to 10 mph NE | 3% |
| Wednesday Night | 49°F | Partly Cloudy | 0 to 5 mph NE | 1% |
| Thursday | 66°F | Mostly Sunny | 0 to 10 mph NE | 3% |
| Thursday Night | 49°F | Partly Cloudy | 0 to 5 mph NE | 3% |
| Friday | 69°F | Mostly Sunny | 0 to 5 mph NE | 2% |
| Friday Night | 49°F | Partly Cloudy | 0 to 5 mph NE | 2% |
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.