Wauwatosa, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Wauwatosa, a city in Milwaukee County, Wisconsin.
Today
68°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely before 1pm, then a chance of showers and thunderstorms between 1pm and 2pm, 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 for Wauwatosa
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 68°F | Showers And Thunderstorms Likely | 5 to 10 mph E | 77% |
| Tonight | 60°F | Showers And Thunderstorms | 5 to 10 mph E | 84% |
| Sunday | 64°F | Chance Rain Showers | 10 to 15 mph NE | 47% |
| Sunday Night | 53°F | Mostly Cloudy | 10 to 15 mph NE | 2% |
| Monday | 63°F | Mostly Cloudy | 10 to 15 mph NE | 6% |
| Monday Night | 50°F | Mostly Cloudy | 10 to 15 mph NE | 6% |
| Tuesday | 62°F | Partly Sunny | 10 to 15 mph NE | 7% |
| Tuesday Night | 51°F | Partly Cloudy | 5 to 10 mph NE | 7% |
| Wednesday | 63°F | Mostly Sunny | 5 to 10 mph NE | 7% |
| Wednesday Night | 52°F | Mostly Cloudy | 5 to 10 mph NE | 3% |
| Thursday | 66°F | Mostly Sunny | 5 to 10 mph NE | 4% |
| Thursday Night | 52°F | Partly Cloudy | 0 to 5 mph NE | 4% |
| Friday | 69°F | Mostly Sunny | 5 to 10 mph NE | 5% |
| Friday Night | 53°F | Partly Cloudy | 0 to 5 mph NE | 3% |
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 Sep 19, 2026.