Slinger, WI Weather & Growing Conditions
This Afternoon
63°F
Chance Rain Showers
A chance of rain showers before 4pm. Cloudy. High near 63, with temperatures falling to around 52 in the afternoon. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 63°F | Chance Rain Showers | 10 to 15 mph SW | 11% |
| Tonight | 45°F | Cloudy then Chance Light Rain | 10 to 15 mph SW | 53% |
| Thursday | 51°F | Light Rain | 10 to 15 mph W | 77% |
| Thursday Night | 35°F | Mostly Cloudy | 10 to 15 mph N | 7% |
| Friday | 46°F | Partly Sunny | 5 to 15 mph N | 2% |
| 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% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Slinger, WI
Last spring frost
May 5
First fall frost
Oct 5
Growing season
152 days
Hardiness zone
5a
Explore more for Slinger, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Slinger Wwtp, Wi (1.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.