Milton, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Milton, a city in Rock County, Wisconsin.
Tonight
60°F
Chance Showers And Thunderstorms
A chance of rain showers before 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then a chance of showers and thunderstorms between 1am and 2am, then showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a low around 60. East wind around 10 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
7-day forecast for Milton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 60°F | Chance Showers And Thunderstorms | 10 mph E | 92% |
| Saturday | 72°F | Showers And Thunderstorms | 5 to 15 mph SE | 93% |
| Saturday Night | 59°F | Showers And Thunderstorms | 5 to 10 mph NE | 78% |
| Sunday | 66°F | Chance Rain Showers | 15 mph NE | 52% |
| Sunday Night | 53°F | Chance Rain Showers then Mostly Cloudy | 10 to 15 mph NE | 35% |
| Monday | 62°F | Chance Rain Showers | 15 mph NE | 27% |
| Monday Night | 48°F | Chance Rain Showers | 10 to 15 mph NE | 27% |
| Tuesday | 61°F | Slight Chance Rain Showers then Mostly Cloudy | 10 to 15 mph NE | 17% |
| Tuesday Night | 47°F | Mostly Cloudy | 5 to 10 mph NE | 8% |
| Wednesday | 64°F | Mostly Sunny | 5 to 10 mph NE | 6% |
| Wednesday Night | 48°F | Partly Cloudy | 0 to 5 mph NE | 2% |
| Thursday | 66°F | Partly Sunny | 5 mph NE | 6% |
| Thursday Night | 50°F | Partly Cloudy | 0 to 5 mph NE | 5% |
| Friday | 69°F | Mostly Sunny | 0 to 5 mph NE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Milton (42.775, -88.940). Updated through the day.
Growing snapshot for Milton
Last spring frost
Apr 28
First fall frost
Oct 13
Growing season
166 days
Hardiness zone
5b
More local growing data for Milton: nearby ZIP 53563 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Brodhead
Clinton
Edgerton
Evansville
Footville
Fulton
Hanover
Janesville
Lake Koshkonong
Orfordville
Shopiere
Climate data from the nearest NOAA station, Ft Atkinson, Wi (9.4 mi from Milton). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.