Lake Wisconsin, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lake Wisconsin, a community in Columbia County, Wisconsin.
Today
81°F
Partly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 81. Southwest wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Lake Wisconsin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 81°F | Partly Sunny then Chance Showers And Thunderstorms | 5 to 10 mph SW | 34% |
| Tonight | 61°F | Chance Showers And Thunderstorms | 5 mph W | 73% |
| Wednesday | 76°F | Areas Of Fog then Partly Sunny | 0 to 5 mph W | 39% |
| Wednesday Night | 56°F | Partly Cloudy | 0 to 5 mph W | 6% |
| Thursday | 79°F | Sunny | 0 mph | 6% |
| Thursday Night | 58°F | Mostly Clear | 0 mph | 2% |
| Friday | 81°F | Sunny | 0 to 5 mph SW | 2% |
| Friday Night | 62°F | Mostly Clear | 5 mph SW | 6% |
| Saturday | 83°F | Mostly Sunny | 5 to 10 mph SW | 12% |
| Saturday Night | 67°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 31% |
| Sunday | 84°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 31% |
| Sunday Night | 65°F | Chance Showers And Thunderstorms | 5 mph SW | 51% |
| Monday | 82°F | Chance Rain Showers | 5 mph S | 51% |
| Monday Night | 65°F | Chance Showers And Thunderstorms | 0 to 5 mph NE | 40% |
Forecast source: National Weather Service (api.weather.gov) for Lake Wisconsin (43.365, -89.596). Updated through the day.
Growing snapshot for Lake Wisconsin
Last spring frost
May 1
First fall frost
Oct 10
Growing season
162 days
Hardiness zone
5a
More local growing data for Lake Wisconsin: nearby ZIP 53555 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Arlington
Cambria
Columbus
Dekorra
Doylestown
Fall River
Friesland
Lodi
Pardeeville
Portage
Poynette
Randolph
Rio
Wyocena
Climate data from the nearest NOAA station, Lodi, Wi (1.2 mi from Lake Wisconsin). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.