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
Light Rain
Rain. Cloudy, with a low around 58. South wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Slinger
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 58°F | Light Rain | 10 mph S | 84% |
| Wednesday | 61°F | Chance Light Rain then Cloudy | 10 to 15 mph S | 38% |
| Wednesday Night | 46°F | Cloudy then Chance Light Rain | 15 mph SW | 31% |
| Thursday | 52°F | Light Rain Likely | 10 to 15 mph W | 58% |
| Thursday Night | 39°F | Chance Light Rain | 5 to 10 mph N | 52% |
| Friday | 48°F | Slight Chance Light Rain then Partly Sunny | 10 to 15 mph N | 23% |
| Friday Night | 33°F | Mostly Cloudy | 0 to 5 mph N | 3% |
| Saturday | 50°F | Mostly Sunny | 0 to 5 mph W | 2% |
| Saturday Night | 34°F | Partly Cloudy | 0 to 5 mph W | 8% |
| Sunday | 55°F | Slight Chance Light Rain | 5 to 10 mph W | 18% |
| Sunday Night | 36°F | Partly Cloudy | 5 mph W | 4% |
| Monday | 58°F | Mostly Sunny | 5 to 15 mph SW | 2% |
| Monday Night | 40°F | Partly Cloudy | 5 to 10 mph W | 1% |
| Tuesday | 58°F | Mostly Sunny | 5 to 10 mph NW | 0% |
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 4, 2026.