Milton, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Milton, a city in Rock County, Wisconsin.
Tonight
57°F
Light Rain
Rain. Cloudy, with a low around 57. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Milton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 57°F | Light Rain | 10 to 15 mph S | 95% |
| Wednesday | 60°F | Chance Light Rain | 15 mph SW | 25% |
| Wednesday Night | 45°F | Cloudy then Slight Chance Light Rain | 15 mph SW | 20% |
| Thursday | 54°F | Light Rain Likely | 10 to 15 mph W | 56% |
| Thursday Night | 37°F | Chance Light Rain then Mostly Cloudy | 10 to 15 mph N | 33% |
| Friday | 47°F | Partly Sunny | 10 to 15 mph N | 4% |
| Friday Night | 32°F | Partly Cloudy | 0 to 10 mph N | 2% |
| Saturday | 51°F | Mostly Sunny | 0 to 5 mph W | 5% |
| Saturday Night | 33°F | Partly Cloudy | 0 to 5 mph SW | 7% |
| Sunday | 57°F | Slight Chance Light Rain | 5 to 10 mph W | 17% |
| Sunday Night | 34°F | Mostly Clear | 5 mph W | 5% |
| Monday | 59°F | Sunny | 5 to 15 mph SW | 1% |
| Monday Night | 38°F | Mostly Clear | 5 to 10 mph W | 1% |
| Tuesday | 59°F | Sunny | 5 to 10 mph W | 1% |
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 Nov 4, 2026.