Lake Geneva, WI Weather & Growing Conditions
This Afternoon
68°F
Light Rain
Rain and a slight chance of thunderstorms. Cloudy. High near 68, with temperatures falling to around 63 in the afternoon. South wind 0 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Light Rain | 0 to 15 mph S | 79% |
| Tonight | 57°F | Light Rain | 10 to 15 mph S | 87% |
| Wednesday | 61°F | Light Rain Likely | 10 to 15 mph S | 72% |
| Wednesday Night | 46°F | Chance Light Rain | 10 mph SW | 29% |
| Thursday | 54°F | Light Rain Likely | 5 to 10 mph SW | 61% |
| Thursday Night | 40°F | Chance Light Rain | 5 mph NW | 52% |
| Friday | 50°F | Slight Chance Light Rain | 5 to 10 mph N | 20% |
| Friday Night | 33°F | Mostly Cloudy | 0 to 5 mph N | 3% |
| Saturday | 51°F | Mostly Sunny | 0 to 5 mph W | 2% |
| Saturday Night | 33°F | Partly Cloudy | 0 to 5 mph W | 8% |
| Sunday | 57°F | Mostly Sunny then Slight Chance Light Rain | 5 to 10 mph W | 18% |
| Sunday Night | 34°F | Mostly Clear | 0 to 5 mph W | 7% |
| Monday | 59°F | Sunny | 5 to 10 mph SW | 2% |
| Monday Night | 39°F | Mostly Clear | 5 mph W | 2% |
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 Nov 4, 2026.