Wauwatosa, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Wauwatosa, a city in Milwaukee County, Wisconsin.
Overnight
59°F
Light Rain
Rain. Cloudy, with a low around 59. South wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Wauwatosa
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 59°F | Light Rain | 10 mph S | 79% |
| Wednesday | 63°F | Chance Light Rain | 10 to 15 mph S | 42% |
| Wednesday Night | 46°F | Cloudy then Chance Light Rain | 10 to 15 mph SW | 26% |
| Thursday | 56°F | Chance Light Rain | 10 to 15 mph W | 52% |
| Thursday Night | 38°F | Chance Light Rain then Cloudy | 10 mph N | 44% |
| Friday | 49°F | Slight Chance Light Rain then Mostly Cloudy | 10 to 15 mph N | 16% |
| Friday Night | 33°F | Partly Cloudy | 5 to 10 mph N | 2% |
| Saturday | 51°F | Sunny | 5 mph NW | 0% |
| Saturday Night | 34°F | Partly Cloudy | 5 mph W | 2% |
| Sunday | 55°F | Sunny | 5 to 10 mph W | 7% |
| Sunday Night | 36°F | Mostly Clear | 5 to 10 mph W | 1% |
| Monday | 59°F | Sunny | 5 to 10 mph SW | 0% |
| Monday Night | 41°F | Partly Cloudy | 5 to 10 mph W | 1% |
| Tuesday | 59°F | Sunny | 5 to 10 mph NW | 2% |
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 Nov 4, 2026.