Polonia, WI Weather & Growing Conditions
Overnight
54°F
Showers And Thunderstorms
Rain showers before 1am, then showers and thunderstorms. Cloudy, with a low around 54. East wind around 12 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 54°F | Showers And Thunderstorms | 12 mph E | 81% |
| Saturday | 62°F | Showers And Thunderstorms | 12 to 16 mph E | 80% |
| Saturday Night | 49°F | Rain Showers Likely | 12 mph NE | 66% |
| Sunday | 67°F | Slight Chance Rain Showers then Partly Sunny | 14 mph NE | 18% |
| Sunday Night | 44°F | Mostly Cloudy | 13 mph NE | 1% |
| Monday | 61°F | Mostly Cloudy | 14 mph ENE | 2% |
| Monday Night | 41°F | Mostly Cloudy | 7 to 12 mph ENE | 4% |
| Tuesday | 62°F | Partly Sunny | 7 to 12 mph ENE | 4% |
| Tuesday Night | 42°F | Partly Cloudy | 5 to 9 mph ENE | 3% |
| Wednesday | 65°F | Mostly Sunny | 5 to 8 mph ENE | 2% |
| Wednesday Night | 45°F | Partly Cloudy | 1 to 6 mph ENE | 2% |
| Thursday | 69°F | Mostly Sunny | 5 mph ENE | 5% |
| Thursday Night | 47°F | Partly Cloudy | 0 to 3 mph WSW | 6% |
| Friday | 71°F | Mostly Sunny | 1 to 6 mph N | 5% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Polonia, WI
Last spring frost
May 4
First fall frost
Oct 7
Growing season
155 days
Hardiness zone
4b
Explore more for Polonia, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Stevens Pt, Wi (9.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.