Wauwatosa, WI Weather & Growing Conditions
Today
68°F
Showers And Thunderstorms
Showers and thunderstorms before 1pm, then a chance of showers and thunderstorms between 1pm and 2pm, then showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a high near 68. Southeast wind 5 to 10 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 68°F | Showers And Thunderstorms | 5 to 10 mph SE | 100% |
| Tonight | 60°F | Showers And Thunderstorms | 5 to 10 mph E | 84% |
| Sunday | 64°F | Chance Rain Showers | 10 to 15 mph NE | 49% |
| Sunday Night | 53°F | Mostly Cloudy | 10 to 15 mph NE | 2% |
| Monday | 62°F | Mostly Cloudy | 10 to 15 mph NE | 6% |
| Monday Night | 51°F | Mostly Cloudy | 10 to 15 mph NE | 6% |
| Tuesday | 61°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 15 mph NE | 7% |
| Wednesday Night | 52°F | Mostly Cloudy | 5 to 10 mph NE | 3% |
| Thursday | 65°F | Mostly Sunny | 5 to 10 mph NE | 4% |
| Thursday Night | 52°F | Mostly Cloudy | 0 to 5 mph NE | 4% |
| Friday | 68°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). 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 Sep 19, 2026.