Wauwatosa, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Wauwatosa, a city in Milwaukee County, Wisconsin.
Today
85°F
Mostly Sunny
Mostly sunny, with a high near 85. South wind 0 to 10 mph.
7-day forecast for Wauwatosa
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Mostly Sunny | 0 to 10 mph S | 4% |
| Tonight | 66°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 5 to 10 mph SW | 83% |
| Wednesday | 75°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 5 mph W | 74% |
| Wednesday Night | 61°F | Chance Showers And Thunderstorms | 0 to 5 mph N | 46% |
| Thursday | 79°F | Slight Chance Rain Showers then Mostly Sunny | 0 to 5 mph NE | 23% |
| Thursday Night | 60°F | Partly Cloudy | 0 to 5 mph S | 9% |
| 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 | 84°F | Chance Rain Showers | 5 to 10 mph S | 44% |
| Monday Night | 66°F | Chance Showers And Thunderstorms | 5 mph N | 42% |
Forecast source: National Weather Service (api.weather.gov) for Wauwatosa (43.063, -88.036). Updated through the day.
Growing snapshot for Wauwatosa
Last spring frost
Apr 26
First fall frost
Oct 18
Growing season
173 days
Hardiness zone
5b
More local growing data for Wauwatosa: nearby ZIP 53226 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Bayside
Brown Deer
Cudahy
Fox Point
Franklin
Glendale
Greendale
Greenfield
Hales Corners
Milwaukee
Oak Creek
River Hills
Shorewood
South Milwaukee
St. Francis
West Allis
West Milwaukee
Whitefish Bay
Climate data from the nearest NOAA station, Mt Mary College, Wi (1.6 mi from Wauwatosa). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.