Pewaukee, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Pewaukee, a city in Waukesha County, Wisconsin.
Tonight
58°F
Showers And Thunderstorms
Rain showers likely before 1am, then showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a low around 58. East wind 10 to 15 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
7-day forecast for Pewaukee
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 58°F | Showers And Thunderstorms | 10 to 15 mph E | 95% |
| Saturday | 70°F | Showers And Thunderstorms | 10 to 15 mph SE | 94% |
| Saturday Night | 58°F | Showers And Thunderstorms Likely | 5 to 10 mph NE | 74% |
| Sunday | 66°F | Chance Rain Showers | 10 to 15 mph NE | 47% |
| Sunday Night | 54°F | Slight Chance Rain Showers then Mostly Cloudy | 10 to 15 mph NE | 23% |
| Monday | 62°F | Mostly Cloudy then Slight Chance Rain Showers | 10 to 15 mph NE | 15% |
| Monday Night | 49°F | Slight Chance Rain Showers | 10 to 15 mph NE | 15% |
| Tuesday | 60°F | Slight Chance Rain Showers then Partly Sunny | 10 to 15 mph NE | 15% |
| Tuesday Night | 49°F | Mostly Cloudy | 5 to 10 mph NE | 11% |
| Wednesday | 63°F | Partly Sunny | 5 to 10 mph NE | 11% |
| Wednesday Night | 50°F | Mostly Cloudy | 0 to 5 mph NE | 6% |
| Thursday | 65°F | Partly Sunny | 0 to 5 mph NE | 3% |
| Thursday Night | 50°F | Partly Cloudy | 0 to 5 mph N | 4% |
| Friday | 68°F | Mostly Sunny | 0 to 5 mph N | 4% |
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
Nearby towns & communities
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Menomonee Falls
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Mukwonago
Muskego
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North Lake
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Oconomowoc
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Pewaukee
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Waukesha
Waukesha
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.