Slinger, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Slinger, a village in Washington County, Wisconsin.
Tonight
58°F
Showers And Thunderstorms
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 100%. New rainfall amounts between 1 and 2 inches possible.
7-day forecast for Slinger
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 58°F | Showers And Thunderstorms | 10 to 15 mph E | 99% |
| Saturday | 66°F | Showers And Thunderstorms | 5 to 15 mph SE | 97% |
| Saturday Night | 58°F | Showers And Thunderstorms | 5 to 10 mph NE | 76% |
| Sunday | 64°F | Chance Rain Showers | 10 to 15 mph NE | 33% |
| Sunday Night | 53°F | Mostly Cloudy | 10 to 15 mph NE | 3% |
| Monday | 61°F | Mostly Cloudy | 10 to 15 mph NE | 13% |
| Monday Night | 49°F | Mostly Cloudy then Slight Chance Rain Showers | 5 to 15 mph NE | 15% |
| Tuesday | 60°F | Slight Chance Rain Showers then Partly Sunny | 5 to 15 mph NE | 15% |
| Tuesday Night | 48°F | Mostly Cloudy | 5 to 10 mph NE | 10% |
| Wednesday | 63°F | Mostly Sunny | 5 to 10 mph NE | 10% |
| Wednesday Night | 49°F | Partly Cloudy | 0 to 5 mph NE | 5% |
| Thursday | 66°F | Partly Sunny | 0 to 5 mph NE | 2% |
| Thursday Night | 50°F | Partly Cloudy | 0 to 5 mph N | 5% |
| Friday | 68°F | Mostly Sunny | 0 to 5 mph N | 5% |
Forecast source: National Weather Service (api.weather.gov) for Slinger (43.335, -88.276). Updated through the day.
Growing snapshot for Slinger
Last spring frost
May 5
First fall frost
Oct 5
Growing season
152 days
Hardiness zone
5a
More local growing data for Slinger: nearby ZIP 53086 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Slinger Wwtp, Wi (1.3 mi from Slinger). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.