Wauwatosa, WI Weather & Growing Conditions
This Afternoon
86°F
Mostly Sunny
Mostly sunny, with a high near 86. Southwest wind around 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 86°F | Mostly Sunny | 10 mph SW | 4% |
| Tonight | 66°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 86% |
| Wednesday | 75°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 0 to 5 mph NW | 73% |
| Wednesday Night | 60°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph N | 36% |
| Thursday | 79°F | Mostly Sunny | 0 to 5 mph NE | 10% |
| Thursday Night | 60°F | Partly Cloudy | 0 to 5 mph S | 10% |
| Friday | 83°F | Sunny | 0 to 5 mph SW | 1% |
| Friday Night | 64°F | Mostly Clear | 5 mph SW | 6% |
| Saturday | 85°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 15% |
| Saturday Night | 68°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 27% |
| Sunday | 85°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 27% |
| Sunday Night | 67°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 10 mph SW | 52% |
| Monday | 83°F | Chance Rain Showers | 5 to 10 mph S | 44% |
| Monday Night | 66°F | Chance Showers And Thunderstorms | 5 mph NW | 42% |
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 (1.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.