Lake Geneva, WI Weather & Growing Conditions
Tonight
58°F
Light Rain
Rain. Cloudy, with a low around 58. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 58°F | Light Rain | 10 to 15 mph S | 86% |
| Wednesday | 60°F | Chance Light Rain then Cloudy | 10 to 15 mph SW | 26% |
| Wednesday Night | 45°F | Cloudy | 15 mph SW | 12% |
| Thursday | 53°F | Light Rain Likely | 5 to 15 mph W | 58% |
| 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% |
| Tuesday | 60°F | Mostly Sunny | 5 to 10 mph W | 1% |
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.