DeForest, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for DeForest, a village in Dane County, Wisconsin.
Today
83°F
Partly Sunny
Partly sunny, with a high near 83. Southwest wind around 10 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for DeForest
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Partly Sunny | 10 mph SW | 12% |
| Tonight | 62°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 0 to 5 mph NW | 84% |
| Wednesday | 76°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 0 to 5 mph NW | 63% |
| Wednesday Night | 55°F | Partly Cloudy | 0 to 5 mph SW | 14% |
| Thursday | 78°F | Mostly Sunny | 0 mph | 4% |
| Thursday Night | 58°F | Mostly Clear | 0 mph | 4% |
| Friday | 81°F | Sunny | 0 to 5 mph SW | 2% |
| Friday Night | 62°F | Mostly Clear | 0 to 5 mph SW | 5% |
| Saturday | 83°F | Mostly Sunny | 5 to 10 mph SW | 13% |
| Saturday Night | 67°F | Chance Showers And Thunderstorms | 5 mph SW | 30% |
| Sunday | 84°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 30% |
| Sunday Night | 65°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 10 mph SW | 50% |
| Monday | 82°F | Chance Rain Showers | 5 mph SW | 50% |
| Monday Night | 65°F | Chance Showers And Thunderstorms | 5 mph N | 42% |
Forecast source: National Weather Service (api.weather.gov) for DeForest (43.227, -89.346). Updated through the day.
Growing snapshot for DeForest
Last spring frost
May 1
First fall frost
Oct 10
Growing season
160 days
Hardiness zone
5a
More local growing data for DeForest: nearby ZIP 53598 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Belleville
Black Earth
Blue Mounds
Cambridge
Cottage Grove
Cross Plains
Dane
Deerfield
Fitchburg
Lake Ripley
Madison
Maple Bluff
Marshall
Mazomanie
McFarland
Middleton
Monona
Mount Horeb
Oregon
Rockdale
Shorewood Hills
Stoughton
Sun Prairie
Verona
Waunakee
Windsor
Climate data from the nearest NOAA station, Madison Dane Rgnl Ap, Wi (4.8 mi from DeForest). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.