Wauwatosa, WI Weather & Growing Conditions
Tonight
62°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy, with a low around 62. Northeast 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 |
|---|---|---|---|---|
| Tonight | 62°F | Showers And Thunderstorms | 5 to 10 mph NE | 77% |
| Sunday | 65°F | Chance Showers And Thunderstorms then Mostly Cloudy | 10 to 15 mph NE | 50% |
| Sunday Night | 54°F | Mostly Cloudy | 10 to 15 mph NE | 3% |
| Monday | 62°F | Mostly Cloudy | 10 to 15 mph NE | 6% |
| Monday Night | 51°F | Cloudy | 10 to 15 mph NE | 13% |
| Tuesday | 62°F | Slight Chance Rain Showers | 10 to 15 mph NE | 16% |
| Tuesday Night | 51°F | Mostly Cloudy | 5 to 15 mph NE | 9% |
| Wednesday | 63°F | Partly Sunny | 5 to 10 mph NE | 14% |
| Wednesday Night | 53°F | Mostly Cloudy | 5 to 10 mph NE | 6% |
| Thursday | 65°F | Partly Sunny | 5 to 10 mph NE | 2% |
| Thursday Night | 53°F | Mostly Cloudy | 0 to 5 mph NE | 6% |
| Friday | 68°F | Partly Sunny | 0 to 5 mph NE | 5% |
| Friday Night | 53°F | Partly Cloudy | 0 to 5 mph NE | 3% |
| Saturday | 70°F | Mostly Sunny | 0 to 5 mph NE | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Wauwatosa, WI
Last spring frost
Apr 26
First fall frost
Oct 18
Growing season
173 days
Hardiness zone
5b
Explore more for Wauwatosa, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Mt Mary College, Wi (2.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.