Edgerton, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Edgerton, a city in Rock County, Wisconsin.
Today
83°F
Mostly Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 83. Southwest wind 5 to 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Edgerton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 19% |
| Tonight | 63°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 5 to 10 mph W | 90% |
| Wednesday | 75°F | Patchy Fog then Chance Showers And Thunderstorms | 5 mph NW | 65% |
| Wednesday Night | 58°F | Chance Showers And Thunderstorms | 0 to 5 mph NW | 39% |
| Thursday | 79°F | Slight Chance Rain Showers then Mostly Sunny | 0 to 5 mph N | 21% |
| Thursday Night | 58°F | Mostly Clear | 0 mph | 6% |
| Friday | 81°F | Mostly Sunny | 0 to 5 mph S | 3% |
| Friday Night | 62°F | Mostly Clear | 5 mph SW | 4% |
| Saturday | 84°F | Mostly Sunny | 5 to 10 mph SW | 13% |
| Saturday Night | 67°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 30% |
| Sunday | 85°F | Chance Showers And Thunderstorms | 5 to 15 mph SW | 30% |
| Sunday Night | 66°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 47% |
| Monday | 83°F | Chance Rain Showers | 5 to 10 mph S | 47% |
| Monday Night | 66°F | Chance Showers And Thunderstorms | 5 mph W | 43% |
Forecast source: National Weather Service (api.weather.gov) for Edgerton (42.839, -89.070). Updated through the day.
Growing snapshot for Edgerton
Last spring frost
Apr 30
First fall frost
Oct 11
Growing season
163 days
Hardiness zone
5b
More local growing data for Edgerton: nearby ZIP 53534 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Brodhead
Clinton
Evansville
Footville
Fulton
Hanover
Janesville
Lake Koshkonong
Milton
Orfordville
Shopiere
Climate data from the nearest NOAA station, Stoughton, Wi (7 mi from Edgerton). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.