Brown Deer, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Brown Deer, a village in Milwaukee County, Wisconsin.
Tonight
59°F
Showers And Thunderstorms
Rain showers likely before 1am, then showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a low around 59. East wind 10 to 15 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
7-day forecast for Brown Deer
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 59°F | Showers And Thunderstorms | 10 to 15 mph E | 94% |
| Saturday | 70°F | Showers And Thunderstorms | 10 to 15 mph SE | 94% |
| Saturday Night | 58°F | Showers And Thunderstorms Likely | 10 mph NE | 73% |
| Sunday | 67°F | Chance Rain Showers | 10 to 20 mph NE | 43% |
| Sunday Night | 53°F | Slight Chance Rain Showers then Mostly Cloudy | 10 to 20 mph NE | 17% |
| Monday | 64°F | Mostly Cloudy | 10 to 15 mph NE | 14% |
| Monday Night | 50°F | Mostly Cloudy then Slight Chance Rain Showers | 10 to 15 mph NE | 15% |
| Tuesday | 63°F | Slight Chance Rain Showers then Partly Sunny | 10 to 15 mph NE | 15% |
| Tuesday Night | 51°F | Mostly Cloudy | 5 to 10 mph NE | 13% |
| Wednesday | 64°F | Partly Sunny | 5 to 10 mph NE | 13% |
| Wednesday Night | 51°F | Mostly Cloudy | 5 to 10 mph N | 7% |
| Thursday | 67°F | Partly Sunny | 5 mph NE | 3% |
| Thursday Night | 52°F | Partly Cloudy | 0 to 5 mph N | 4% |
| Friday | 69°F | Mostly Sunny | 5 mph N | 4% |
Forecast source: National Weather Service (api.weather.gov) for Brown Deer (43.174, -87.975). Updated through the day.
Growing snapshot for Brown Deer
Last spring frost
Apr 26
First fall frost
Oct 18
Growing season
173 days
Hardiness zone
6a
More local growing data for Brown Deer: nearby ZIP 53223 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Bayside
Cudahy
Fox Point
Franklin
Glendale
Greendale
Greenfield
Hales Corners
Milwaukee
Oak Creek
River Hills
Shorewood
South Milwaukee
St. Francis
Wauwatosa
West Allis
West Milwaukee
Whitefish Bay
Climate data from the nearest NOAA station, Mt Mary College, Wi (6.5 mi from Brown Deer). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.