Fontana-on-Geneva Lake, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fontana-on-Geneva Lake, a village in Walworth County, Wisconsin.
This Afternoon
62°F
Cloudy
Cloudy. High near 62, with temperatures falling to around 53 in the afternoon. Southwest wind 10 to 15 mph.
7-day forecast for Fontana-on-Geneva Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 62°F | Cloudy | 10 to 15 mph SW | 8% |
| Tonight | 45°F | Cloudy then Chance Light Rain | 15 mph SW | 43% |
| Thursday | 52°F | Light Rain Likely | 10 to 15 mph W | 68% |
| Thursday Night | 36°F | Slight Chance Light Rain then Mostly Cloudy | 10 mph N | 15% |
| Friday | 48°F | Partly Sunny | 5 to 15 mph N | 0% |
| Friday Night | 28°F | Mostly Clear | 0 to 5 mph NW | 0% |
| Saturday | 51°F | Sunny | 0 to 5 mph NW | 0% |
| Saturday Night | 32°F | Mostly Clear | 0 to 5 mph W | 0% |
| Sunday | 57°F | Sunny | 5 to 10 mph W | 1% |
| Sunday Night | 34°F | Mostly Clear | 0 to 5 mph W | 0% |
| Monday | 60°F | Sunny | 0 to 10 mph SW | 0% |
| Monday Night | 39°F | Mostly Clear | 0 to 10 mph W | 0% |
| Tuesday | 60°F | Sunny | 0 to 5 mph NW | 1% |
| Tuesday Night | 37°F | Partly Cloudy | 0 mph | 1% |
Forecast source: National Weather Service (api.weather.gov) for Fontana-on-Geneva Lake (42.545, -88.566). Updated through the day.
Growing snapshot for Fontana-on-Geneva Lake
Last spring frost
Apr 25
First fall frost
Oct 21
Growing season
179 days
Hardiness zone
5b
More local growing data for Fontana-on-Geneva Lake: nearby ZIP 53125 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Allens Grove
Big Foot Prairie
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Como
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Genoa City
Lake Geneva
Lake Ivanhoe
Lake Lorraine
Lauderdale Lakes
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Powers Lake
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Springfield
Turtle Lake
Walworth
Whitewater
Williams Bay
Climate data from the nearest NOAA station, Lake Geneva Wwtp, Wi (7.9 mi from Fontana-on-Geneva Lake). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.