Fitchburg, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fitchburg, a city in Dane County, Wisconsin.
Overnight
59°F
Mostly Clear
Mostly clear, with a low around 59. South wind around 5 mph.
7-day forecast for Fitchburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 59°F | Mostly Clear | 5 mph S | 0% |
| Tuesday | 82°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 to 10 mph SW | 28% |
| Tuesday Night | 61°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 5 to 10 mph W | 85% |
| Wednesday | 74°F | Patchy Fog | 5 mph NW | 49% |
| Wednesday Night | 58°F | Chance Showers And Thunderstorms | 0 to 5 mph NW | 25% |
| Thursday | 78°F | Slight Chance Rain Showers then Mostly Sunny | 0 to 5 mph N | 17% |
| Thursday Night | 59°F | Mostly Clear | 0 mph | 4% |
| Friday | 81°F | Sunny | 0 to 5 mph SW | 3% |
| Friday Night | 63°F | Mostly Clear | 5 mph SW | 4% |
| Saturday | 83°F | Mostly Sunny | 5 to 10 mph SW | 13% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 29% |
| Sunday | 84°F | Chance Showers And Thunderstorms | 10 mph SW | 29% |
| Sunday Night | 67°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 10 mph SW | 50% |
| Monday | 83°F | Chance Rain Showers | 5 to 10 mph S | 50% |
Forecast source: National Weather Service (api.weather.gov) for Fitchburg (42.986, -89.425). Updated through the day.
Growing snapshot for Fitchburg
Last spring frost
May 1
First fall frost
Oct 9
Growing season
161 days
Hardiness zone
5b
More local growing data for Fitchburg: nearby ZIP 53711 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Belleville
Black Earth
Blue Mounds
Cambridge
Cottage Grove
Cross Plains
Dane
Deerfield
DeForest
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, Uw Arboretum - Madison, Wi (2.3 mi from Fitchburg). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.