Lake Geneva, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lake Geneva, a city in Walworth County, Wisconsin.
This Afternoon
68°F
Showers And Thunderstorms
Showers and thunderstorms before 5pm, then a chance of showers and thunderstorms. Cloudy, with a high near 68. East wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Lake Geneva
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Showers And Thunderstorms | 5 mph E | 82% |
| Tonight | 61°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 0 to 10 mph E | 92% |
| Sunday | 64°F | Chance Rain Showers | 10 to 15 mph NE | 71% |
| Sunday Night | 54°F | Mostly Cloudy | 10 to 15 mph NE | 8% |
| Monday | 62°F | Cloudy then Slight Chance Rain Showers | 10 to 15 mph NE | 16% |
| Monday Night | 50°F | Chance Rain Showers | 5 to 10 mph NE | 32% |
| Tuesday | 60°F | Chance Rain Showers | 5 to 10 mph NE | 32% |
| Tuesday Night | 49°F | Mostly Cloudy | 5 to 10 mph NE | 11% |
| Wednesday | 62°F | Partly Sunny | 5 to 10 mph NE | 8% |
| Wednesday Night | 50°F | Mostly Cloudy | 0 to 5 mph NE | 4% |
| Thursday | 65°F | Partly Sunny | 0 to 5 mph NE | 5% |
| Thursday Night | 51°F | Mostly Cloudy | 0 to 5 mph NE | 11% |
| Friday | 69°F | Partly Sunny | 0 to 5 mph NE | 8% |
| Friday Night | 51°F | Partly Cloudy | 0 to 5 mph NE | 4% |
Forecast source: National Weather Service (api.weather.gov) for Lake Geneva (42.583, -88.428). Updated through the day.
Growing snapshot for Lake Geneva
Last spring frost
Apr 25
First fall frost
Oct 21
Growing season
179 days
Hardiness zone
5b
More local growing data for Lake Geneva: nearby ZIP 53147 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 Ivanhoe
Lake Lorraine
Lauderdale Lakes
Lyons
Powers Lake
Sharon
Springfield
Turtle Lake
Walworth
Whitewater
Williams Bay
Climate data from the nearest NOAA station, Lake Geneva Wwtp, Wi (3.2 mi from Lake Geneva). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.