River Hills, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for River Hills, a village in Milwaukee County, Wisconsin.
Overnight
57°F
Rain Showers Likely
Rain showers likely. Cloudy. Low around 57, with temperatures rising to around 62 overnight. South wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for River Hills
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 57°F | Rain Showers Likely | 10 mph S | 59% |
| Wednesday | 64°F | Chance Rain Showers | 10 to 15 mph S | 43% |
| Wednesday Night | 46°F | Cloudy then Chance Rain Showers | 10 mph SW | 31% |
| Thursday | 55°F | Rain Showers Likely then Chance Light Rain | 10 to 15 mph W | 56% |
| Thursday Night | 38°F | Chance Light Rain then Cloudy | 10 to 15 mph N | 47% |
| Friday | 48°F | Slight Chance Light Rain | 15 to 20 mph N | 22% |
| Friday Night | 33°F | Partly Cloudy | 5 to 10 mph N | 2% |
| Saturday | 50°F | Sunny | 5 mph NW | 0% |
| Saturday Night | 35°F | Partly Cloudy | 5 mph W | 2% |
| Sunday | 54°F | Sunny | 5 to 15 mph W | 7% |
| Sunday Night | 36°F | Mostly Clear | 5 mph W | 2% |
| Monday | 58°F | Sunny | 5 to 10 mph SW | 0% |
| Monday Night | 40°F | Partly Cloudy | 5 to 10 mph W | 1% |
| Tuesday | 58°F | Sunny | 5 to 10 mph NW | 3% |
Forecast source: National Weather Service (api.weather.gov) for River Hills (43.173, -87.934). Updated through the day.
Growing snapshot for River Hills
Last spring frost
Apr 26
First fall frost
Oct 18
Growing season
173 days
Hardiness zone
6a
More local growing data for River Hills: nearby ZIP 53217 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
Shorewood
South Milwaukee
St. Francis
Wauwatosa
West Allis
West Milwaukee
Whitefish Bay
Climate data from the nearest NOAA station, Mt Mary College, Wi (8.3 mi from River Hills). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.