Rubicon, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Rubicon, a community in Dodge County, Wisconsin.
This Afternoon
67°F
Chance Rain Showers
A chance of rain showers. Mostly cloudy, with a high near 67. East wind around 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Rubicon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 67°F | Chance Rain Showers | 10 mph E | 34% |
| Tonight | 57°F | Showers And Thunderstorms | 10 to 15 mph E | 100% |
| Saturday | 69°F | Showers And Thunderstorms | 10 to 15 mph E | 96% |
| Saturday Night | 58°F | Showers And Thunderstorms Likely | 10 mph NE | 73% |
| Sunday | 66°F | Chance Rain Showers | 10 to 15 mph NE | 36% |
| Sunday Night | 52°F | Slight Chance Rain Showers then Mostly Cloudy | 10 to 15 mph NE | 15% |
| Monday | 61°F | Mostly Cloudy | 10 to 15 mph NE | 13% |
| Monday Night | 48°F | Mostly Cloudy | 5 to 10 mph NE | 13% |
| Tuesday | 60°F | Partly Sunny | 5 to 15 mph NE | 13% |
| Tuesday Night | 47°F | Partly Cloudy | 5 to 10 mph NE | 8% |
| Wednesday | 63°F | Mostly Sunny | 5 to 10 mph NE | 8% |
| Wednesday Night | 49°F | Partly Cloudy | 0 to 5 mph NE | 4% |
| Thursday | 67°F | Mostly Sunny | 0 to 5 mph NE | 2% |
| Thursday Night | 50°F | Partly Cloudy | 0 to 5 mph NE | 4% |
Forecast source: National Weather Service (api.weather.gov) for Rubicon (43.337, -88.453). Updated through the day.
Growing snapshot for Rubicon
Last spring frost
May 8
First fall frost
Oct 3
Growing season
148 days
Hardiness zone
5a
More local growing data for Rubicon: nearby ZIP 53078 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Ashippun
Beaver Dam
Brownsville
Burnett
Clyman
Fox Lake
Horicon
Hustisford
Iron Ridge
Juneau
Kekoskee
Lebanon
Lomira
Lowell
Mayville
Neosho
Reeseville
Theresa
Climate data from the nearest NOAA station, Hartford Wwtp, Wi (2.9 mi from Rubicon). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.