Brown Deer, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Brown Deer, a village in Milwaukee County, Wisconsin.
This Afternoon
70°F
Light Rain Likely
Rain before 3pm, then rain likely and a slight chance of thunderstorms. Cloudy. High near 70, with temperatures falling to around 65 in the afternoon. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Brown Deer
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Light Rain Likely | 15 mph S | 95% |
| Tonight | 57°F | Light Rain | 10 to 15 mph S | 85% |
| Wednesday | 64°F | Light Rain | 10 to 15 mph S | 83% |
| Wednesday Night | 47°F | Chance Light Rain | 10 mph SW | 33% |
| Thursday | 55°F | Light Rain Likely | 5 to 10 mph W | 60% |
| Thursday Night | 39°F | Light Rain Likely | 5 to 10 mph NW | 59% |
| Friday | 50°F | Chance Light Rain | 10 to 15 mph N | 30% |
| Friday Night | 35°F | Mostly Cloudy | 5 to 10 mph N | 10% |
| Saturday | 52°F | Mostly Sunny | 5 mph W | 4% |
| Saturday Night | 35°F | Partly Cloudy | 0 to 5 mph W | 8% |
| Sunday | 57°F | Mostly Sunny then Slight Chance Light Rain | 5 to 10 mph W | 18% |
| Sunday Night | 36°F | Partly Cloudy | 5 mph W | 7% |
| Monday | 58°F | Mostly Sunny | 5 to 15 mph W | 3% |
| Monday Night | 40°F | Partly Cloudy | 5 to 10 mph W | 2% |
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 3, 2026.