Hebron, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hebron, a community in Jefferson County, Wisconsin.
Tonight
60°F
Chance Showers And Thunderstorms
A chance of rain showers before 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then a chance of showers and thunderstorms between 1am and 2am, then showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a low around 60. East wind around 10 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
7-day forecast for Hebron
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 60°F | Chance Showers And Thunderstorms | 10 mph E | 94% |
| Saturday | 73°F | Showers And Thunderstorms | 10 to 15 mph SE | 94% |
| Saturday Night | 59°F | Showers And Thunderstorms Likely | 5 to 10 mph NE | 73% |
| Sunday | 67°F | Chance Rain Showers | 10 to 15 mph NE | 46% |
| Sunday Night | 52°F | Chance Rain Showers then Mostly Cloudy | 10 to 15 mph NE | 29% |
| Monday | 63°F | Slight Chance Rain Showers | 10 to 15 mph NE | 18% |
| Monday Night | 48°F | Slight Chance Rain Showers | 5 to 15 mph NE | 15% |
| Tuesday | 61°F | Slight Chance Rain Showers then Mostly Cloudy | 10 to 15 mph NE | 15% |
| Tuesday Night | 46°F | Partly Cloudy | 5 to 10 mph NE | 9% |
| Wednesday | 64°F | Partly Sunny | 5 to 10 mph NE | 7% |
| Wednesday Night | 48°F | Partly Cloudy | 0 to 5 mph NE | 3% |
| Thursday | 66°F | Partly Sunny | 0 to 5 mph NE | 3% |
| Thursday Night | 49°F | Partly Cloudy | 0 to 5 mph NE | 4% |
| Friday | 69°F | Mostly Sunny | 0 to 5 mph NE | 4% |
Forecast source: National Weather Service (api.weather.gov) for Hebron (42.919, -88.689). Updated through the day.
Growing snapshot for Hebron
Last spring frost
May 3
First fall frost
Oct 9
Growing season
157 days
Hardiness zone
5b
More local growing data for Hebron: nearby ZIP 53137 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Fort Atkinson
Helenville
Ixonia
Jefferson
Johnson Creek
Lake Mills
Palmyra
Rome
Sullivan
Waterloo
Watertown
Climate data from the nearest NOAA station, Sullivan 3Se, Wi (6.6 mi from Hebron). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.