Polonia, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Polonia, a community in Portage County, Wisconsin.
Today
80°F
Slight Chance Rain Showers then Chance Showers And Thunderstorms
A slight chance of rain showers between 10am and 1pm, then a chance of showers and thunderstorms. Mostly cloudy. High near 80, with temperatures falling to around 78 in the afternoon. Heat index values as high as 79. West southwest wind 7 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Polonia
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 80°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 7 to 13 mph WSW | 27% |
| Tonight | 58°F | Slight Chance Showers And Thunderstorms | 2 to 8 mph NW | 22% |
| Wednesday | 78°F | Mostly Sunny | 2 to 6 mph S | 3% |
| Wednesday Night | 55°F | Partly Cloudy then Patchy Fog | 1 to 5 mph NW | 2% |
| Thursday | 83°F | Patchy Fog then Sunny | 1 to 6 mph WSW | 1% |
| Thursday Night | 60°F | Mostly Clear | 6 mph SSW | 0% |
| Friday | 86°F | Sunny | 3 to 12 mph SW | 3% |
| Friday Night | 63°F | Slight Chance Showers And Thunderstorms | 7 to 12 mph SW | 19% |
| Saturday | 86°F | Mostly Sunny | 6 to 12 mph SW | 13% |
| Saturday Night | 65°F | Chance Showers And Thunderstorms | 3 to 10 mph WSW | 39% |
| Sunday | 85°F | Chance Showers And Thunderstorms | 5 to 10 mph W | 39% |
| Sunday Night | 63°F | Chance Showers And Thunderstorms | 3 to 9 mph NW | 40% |
| Monday | 83°F | Chance Showers And Thunderstorms | 3 to 9 mph SSE | 31% |
| Monday Night | 61°F | Chance Showers And Thunderstorms | 3 to 9 mph N | 34% |
Forecast source: National Weather Service (api.weather.gov) for Polonia (44.581, -89.411). Updated through the day.
Growing snapshot for Polonia
Last spring frost
May 4
First fall frost
Oct 7
Growing season
155 days
Hardiness zone
4b
More local growing data for Polonia: nearby ZIP 54423 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Almond
Amherst
Amherst Junction
Bancroft
Junction City
Nelsonville
Park Ridge
Plover
Rosholt
Stevens Point
Whiting
Climate data from the nearest NOAA station, Stevens Pt, Wi (9.1 mi from Polonia). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.