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Pewaukee, WI Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Pewaukee, a city in Waukesha County, Wisconsin.

Today
68°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 1pm, then showers and thunderstorms. Cloudy, with a high near 68. East wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

7-day forecast for Pewaukee

WhenTempForecastWindPrecip
Today 68°F Chance Showers And Thunderstorms 5 to 10 mph E 77%
Tonight 59°F Showers And Thunderstorms 5 to 10 mph NE 84%
Sunday 65°F Chance Rain Showers then Cloudy 10 to 15 mph NE 47%
Sunday Night 52°F Mostly Cloudy 10 to 15 mph NE 2%
Monday 61°F Mostly Cloudy 10 to 15 mph NE 6%
Monday Night 49°F Mostly Cloudy 5 to 10 mph NE 6%
Tuesday 60°F Partly Sunny 5 to 15 mph NE 8%
Tuesday Night 49°F Partly Cloudy 5 to 10 mph NE 6%
Wednesday 62°F Mostly Sunny 5 to 10 mph NE 6%
Wednesday Night 50°F Partly Cloudy 0 to 5 mph NE 2%
Thursday 65°F Mostly Sunny 0 to 10 mph NE 4%
Thursday Night 50°F Partly Cloudy 0 to 5 mph NE 4%
Friday 68°F Mostly Sunny 0 to 5 mph NE 4%
Friday Night 51°F Partly Cloudy 0 to 5 mph NE 2%

Forecast source: National Weather Service (api.weather.gov) for Pewaukee (43.066, -88.244). Updated through the day.

Growing snapshot for Pewaukee

Last spring frost
Apr 30
First fall frost
Oct 14
Growing season
164 days
Hardiness zone
5b

More local growing data for Pewaukee: nearby ZIP 53072 weather · frost dates · planting calendar · Wisconsin frost dates

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Climate data from the nearest NOAA station, Brookfield Wwtp, Wi (4.9 mi from Pewaukee). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.