Brown Deer, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Brown Deer, a village in Milwaukee County, Wisconsin.
Overnight
58°F
Light Rain
Rain. Cloudy, with a low around 58. 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 Brown Deer
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 58°F | Light Rain | 10 mph S | 78% |
| Wednesday | 63°F | Chance Light Rain | 10 to 15 mph S | 45% |
| Wednesday Night | 46°F | Cloudy then Chance Light Rain | 15 mph SW | 32% |
| Thursday | 55°F | Light Rain Likely | 10 to 15 mph W | 56% |
| Thursday Night | 38°F | Chance Light Rain then Cloudy | 10 mph N | 44% |
| Friday | 49°F | Slight Chance Light Rain | 10 to 15 mph N | 20% |
| 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 15 mph W | 7% |
| Sunday Night | 36°F | Mostly Clear | 5 mph W | 2% |
| Monday | 59°F | Sunny | 5 to 10 mph SW | 0% |
| Monday Night | 40°F | Partly Cloudy | 5 to 10 mph W | 1% |
| Tuesday | 59°F | Sunny | 5 to 10 mph NW | 3% |
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 Nov 4, 2026.