Windsor, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Windsor, a village in Dane County, Wisconsin.
Overnight
57°F
Showers And Thunderstorms
Showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a low around 57. East wind 5 to 15 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
7-day forecast for Windsor
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 57°F | Showers And Thunderstorms | 5 to 15 mph E | 100% |
| Saturday | 69°F | Showers And Thunderstorms | 5 to 10 mph SE | 100% |
| Saturday Night | 57°F | Showers And Thunderstorms | 5 to 15 mph E | 82% |
| Sunday | 66°F | Scattered Rain Showers then Partly Sunny | 15 mph NE | 28% |
| Sunday Night | 51°F | Mostly Cloudy | 15 mph NE | 5% |
| Monday | 63°F | Mostly Cloudy then Chance Rain Showers | 15 mph NE | 25% |
| Monday Night | 47°F | Chance Rain Showers | 10 to 15 mph NE | 25% |
| Tuesday | 61°F | Slight Chance Rain Showers then Partly Sunny | 10 to 15 mph NE | 19% |
| Tuesday Night | 46°F | Partly Cloudy | 5 to 10 mph NE | 7% |
| Wednesday | 65°F | Mostly Sunny | 5 to 10 mph NE | 6% |
| Wednesday Night | 48°F | Partly Cloudy | 0 to 5 mph NE | 1% |
| Thursday | 68°F | Mostly Sunny | 0 to 5 mph NE | 5% |
| Thursday Night | 50°F | Partly Cloudy | 0 to 5 mph NE | 6% |
| Friday | 70°F | Mostly Sunny | 0 to 5 mph N | 4% |
Forecast source: National Weather Service (api.weather.gov) for Windsor (43.246, -89.282). Updated through the day.
Growing snapshot for Windsor
Last spring frost
May 4
First fall frost
Oct 6
Growing season
154 days
Hardiness zone
5a
More local growing data for Windsor: nearby ZIP 53532 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Belleville
Black Earth
Blue Mounds
Cambridge
Cottage Grove
Cross Plains
Dane
Deerfield
DeForest
Fitchburg
Lake Ripley
Madison
Maple Bluff
Marshall
Mazomanie
McFarland
Middleton
Monona
Mount Horeb
Oregon
Rockdale
Shorewood Hills
Stoughton
Sun Prairie
Verona
Waunakee
Climate data from the nearest NOAA station, Arlington, Wi (3.9 mi from Windsor). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.