Lake Geneva, WI Weather & Growing Conditions
Today
71°F
Showers And Thunderstorms then Chance Showers And Thunderstorms
Showers and thunderstorms before 11am, then a chance of showers and thunderstorms between 11am and 1pm, then showers and thunderstorms. Cloudy, with a high near 71. Southeast wind 5 to 10 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 71°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 10 mph SE | 99% |
| Tonight | 61°F | Showers And Thunderstorms | 0 to 10 mph E | 86% |
| Sunday | 64°F | Rain Showers | 10 to 15 mph NE | 77% |
| Sunday Night | 53°F | Cloudy | 10 to 15 mph NE | 12% |
| Monday | 62°F | Slight Chance Rain Showers | 10 to 15 mph NE | 23% |
| Monday Night | 49°F | Mostly Cloudy | 5 to 10 mph NE | 13% |
| Tuesday | 60°F | Partly Sunny | 5 to 10 mph NE | 12% |
| Tuesday Night | 48°F | Partly Cloudy | 5 to 10 mph NE | 6% |
| Wednesday | 63°F | Partly Sunny | 5 to 10 mph NE | 6% |
| Wednesday Night | 50°F | Partly Cloudy | 0 to 5 mph NE | 2% |
| Thursday | 65°F | Mostly Sunny | 0 to 5 mph NE | 5% |
| Thursday Night | 50°F | Partly Cloudy | 0 to 5 mph NE | 5% |
| Friday | 69°F | Mostly Sunny | 0 to 5 mph NE | 4% |
| Friday Night | 50°F | Partly Cloudy | 0 to 5 mph NE | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Lake Geneva, WI
Last spring frost
Apr 25
First fall frost
Oct 21
Growing season
179 days
Hardiness zone
5b
Explore more for Lake Geneva, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Lake Geneva Wwtp, Wi (3.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.