Slinger, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Slinger, a village in Washington County, Wisconsin.
Tonight
45°F
Chance Light Rain
A chance of rain before 11pm, then a chance of rain showers between 11pm and 2am, then a slight chance of rain. Cloudy, with a low around 45. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Slinger
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 45°F | Chance Light Rain | 10 to 15 mph SW | 34% |
| Thursday | 50°F | Chance Light Rain | 10 to 15 mph W | 38% |
| Thursday Night | 35°F | Cloudy | 10 to 15 mph N | 14% |
| Friday | 46°F | Partly Sunny | 10 to 15 mph N | 1% |
| Friday Night | 27°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Saturday | 50°F | Sunny | 0 to 5 mph NW | 0% |
| Saturday Night | 32°F | Mostly Clear | 0 to 5 mph W | 0% |
| Sunday | 56°F | Sunny | 5 to 10 mph W | 1% |
| Sunday Night | 34°F | Mostly Clear | 0 to 5 mph W | 0% |
| Monday | 59°F | Mostly Sunny | 0 to 10 mph SW | 0% |
| Monday Night | 40°F | Mostly Clear | 5 to 10 mph W | 0% |
| Tuesday | 59°F | Sunny | 5 mph NW | 0% |
| Tuesday Night | 37°F | Partly Cloudy | 0 mph | 1% |
| Veterans Day | 57°F | Mostly Sunny | 0 to 5 mph NW | 2% |
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 Nov 5, 2026.