River Hills, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for River Hills, a village in Milwaukee County, Wisconsin.
Tonight
58°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 58. East wind 10 to 15 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
7-day forecast for River Hills
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 58°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 25 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 20 mph NE | 14% |
| Monday Night | 51°F | Mostly Cloudy | 10 to 15 mph NE | 14% |
| Tuesday | 63°F | Mostly Cloudy | 10 to 15 mph NE | 14% |
| Tuesday Night | 51°F | Mostly Cloudy | 5 to 15 mph NE | 13% |
| Wednesday | 64°F | Partly Sunny | 5 to 10 mph NE | 13% |
| Wednesday Night | 52°F | Mostly Cloudy | 5 to 10 mph NE | 7% |
| Thursday | 67°F | Partly Sunny | 5 mph NE | 3% |
| Thursday Night | 52°F | Partly Cloudy | 0 to 5 mph N | 4% |
| Friday | 68°F | Mostly Sunny | 5 mph NE | 4% |
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 Sep 19, 2026.