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
63°F
Cloudy then Isolated Rain Showers
Isolated rain showers after 3pm. Cloudy. High near 63, with temperatures falling to around 54 in the afternoon. Southwest wind 10 to 15 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Lac La Belle
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 63°F | Cloudy then Isolated Rain Showers | 10 to 15 mph SW | 14% |
| Tonight | 45°F | Chance Rain Showers | 10 to 15 mph SW | 44% |
| Thursday | 54°F | Rain Showers Likely then Chance Light Rain | 10 to 15 mph W | 63% |
| Thursday Night | 37°F | Chance Light Rain then Mostly Cloudy | 10 mph N | 26% |
| Friday | 47°F | Partly Sunny | 5 to 15 mph N | 8% |
| Friday Night | 29°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Saturday | 50°F | Sunny | 0 to 5 mph NW | 0% |
| Saturday Night | 32°F | Mostly Clear | 0 to 5 mph W | 3% |
| Sunday | 55°F | Sunny | 5 to 10 mph W | 7% |
| Sunday Night | 33°F | Mostly Clear | 0 to 5 mph W | 1% |
| Monday | 59°F | Mostly Sunny | 0 to 10 mph SW | 0% |
| Monday Night | 38°F | Mostly Clear | 5 to 10 mph W | 1% |
| Tuesday | 59°F | Sunny | 5 to 10 mph NW | 2% |
| Tuesday Night | 36°F | Partly Cloudy | 0 to 5 mph NW | 1% |
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 Nov 4, 2026.