Turtle Lake, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Turtle Lake, a community in Walworth County, Wisconsin.
This Afternoon
68°F
Rain Showers
Rain showers. Cloudy, with a high near 68. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Turtle Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Rain Showers | 15 mph S | 87% |
| Tonight | 57°F | Rain Showers | 10 to 15 mph S | 85% |
| Wednesday | 61°F | Rain Showers | 10 to 15 mph S | 80% |
| Wednesday Night | 46°F | Chance Rain Showers then Chance Light Rain | 10 to 15 mph SW | 37% |
| Thursday | 54°F | Light Rain Likely | 5 to 15 mph W | 66% |
| Thursday Night | 39°F | Chance Light Rain | 5 to 10 mph NW | 52% |
| Friday | 49°F | Slight Chance Light Rain then Mostly Cloudy | 5 to 10 mph N | 19% |
| Friday Night | 32°F | Partly Cloudy | 0 to 5 mph N | 2% |
| Saturday | 51°F | Mostly Sunny | 0 to 5 mph W | 3% |
| Saturday Night | 33°F | Partly Cloudy | 0 to 5 mph W | 7% |
| Sunday | 57°F | Slight Chance Light Rain | 5 to 10 mph W | 18% |
| Sunday Night | 34°F | Mostly Clear | 5 mph W | 6% |
| Monday | 59°F | Sunny | 5 to 10 mph SW | 2% |
| Monday Night | 38°F | Mostly Clear | 5 to 10 mph W | 1% |
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 Nov 4, 2026.