Lac La Belle, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lac La Belle, a village in Waukesha County, Wisconsin.
Today
83°F
Mostly Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 83. Southwest wind 5 to 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Lac La Belle
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 17% |
| Tonight | 63°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 0 to 10 mph W | 90% |
| Wednesday | 75°F | Patchy Fog then Slight Chance Showers And Thunderstorms | 5 mph W | 65% |
| Wednesday Night | 58°F | Chance Showers And Thunderstorms | 0 mph | 38% |
| Thursday | 79°F | Slight Chance Rain Showers then Mostly Sunny | 0 mph | 18% |
| Thursday Night | 58°F | Mostly Clear | 0 mph | 7% |
| Friday | 81°F | Sunny | 0 to 5 mph SW | 1% |
| Friday Night | 62°F | Mostly Clear | 0 to 5 mph SW | 6% |
| Saturday | 83°F | Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 15% |
| Saturday Night | 66°F | Slight Chance Showers And Thunderstorms | 5 mph SW | 30% |
| Sunday | 84°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 30% |
| Sunday Night | 65°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 0 to 10 mph SW | 51% |
| Monday | 83°F | Chance Rain Showers | 0 to 5 mph S | 43% |
| Monday Night | 64°F | Chance Showers And Thunderstorms | 0 to 5 mph N | 44% |
Forecast source: National Weather Service (api.weather.gov) for Lac La Belle (43.146, -88.517). Updated through the day.
Growing snapshot for Lac La Belle
Last spring frost
Apr 30
First fall frost
Oct 12
Growing season
164 days
Hardiness zone
5b
More local growing data for Lac La Belle: nearby ZIP 53066 weather · frost dates · planting calendar · Wisconsin frost dates
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Climate data from the nearest NOAA station, Oconomowoc Wwtp, Wi (1.2 mi from Lac La Belle). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.