Shullsburg, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Shullsburg, a city in Lafayette County, Wisconsin.
Tonight
61°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms between 10pm and 1am, then showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a low around 61. East wind 10 to 15 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
7-day forecast for Shullsburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 61°F | Chance Showers And Thunderstorms | 10 to 15 mph E | 93% |
| Saturday | 76°F | Showers And Thunderstorms | 5 to 10 mph SE | 82% |
| Saturday Night | 61°F | Showers And Thunderstorms | 5 to 15 mph NE | 92% |
| Sunday | 66°F | Chance Rain Showers | 15 mph NE | 52% |
| Sunday Night | 54°F | Chance Rain Showers then Mostly Cloudy | 15 mph NE | 36% |
| Monday | 62°F | Chance Rain Showers | 15 mph NE | 43% |
| Monday Night | 50°F | Chance Rain Showers | 10 to 15 mph NE | 43% |
| Tuesday | 61°F | Chance Rain Showers | 10 to 15 mph NE | 35% |
| Tuesday Night | 47°F | Partly Cloudy | 5 to 10 mph NE | 9% |
| Wednesday | 65°F | Mostly Sunny | 5 to 10 mph NE | 4% |
| Wednesday Night | 50°F | Partly Cloudy | 5 mph NE | 2% |
| Thursday | 67°F | Mostly Sunny | 5 mph NE | 6% |
| Thursday Night | 52°F | Partly Cloudy | 0 mph | 6% |
| Friday | 69°F | Mostly Sunny | 5 mph NE | 3% |
Forecast source: National Weather Service (api.weather.gov) for Shullsburg (42.573, -90.235). Updated through the day.
Growing snapshot for Shullsburg
Last spring frost
May 3
First fall frost
Oct 4
Growing season
153 days
Hardiness zone
5a
More local growing data for Shullsburg: nearby ZIP 53586 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Darlington Wwtp, Wi (9.5 mi from Shullsburg). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.