Pewaukee, WI Weather & Growing Conditions
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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 68°F | Chance Showers And Thunderstorms | 5 to 10 mph E | 76% |
| Tonight | 59°F | Showers And Thunderstorms | 5 to 10 mph NE | 84% |
| Sunday | 64°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 | 48°F | Mostly Cloudy | 5 to 10 mph NE | 6% |
| Tuesday | 60°F | Partly Sunny | 5 to 15 mph NE | 8% |
| Tuesday Night | 48°F | Partly Cloudy | 5 to 10 mph NE | 5% |
| Wednesday | 62°F | Mostly Sunny | 5 to 10 mph NE | 5% |
| 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 | 50°F | Partly Cloudy | 0 to 5 mph NE | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Pewaukee, WI
Last spring frost
Apr 30
First fall frost
Oct 14
Growing season
164 days
Hardiness zone
5b
Explore more for Pewaukee, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Brookfield Wwtp, Wi (4.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.