Harman US

Ixonia, WI Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Ixonia, a community in Jefferson County, Wisconsin.

This Afternoon
70°F
Light Rain Likely
Rain before 3pm, then rain likely and a slight chance of thunderstorms. Cloudy, with a high near 70. South wind around 15 mph, with gusts as high as 35 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.

7-day forecast for Ixonia

WhenTempForecastWindPrecip
This Afternoon 70°F Light Rain Likely 15 mph S 79%
Tonight 57°F Light Rain 10 to 15 mph S 95%
Wednesday 62°F Light Rain 10 to 15 mph S 85%
Wednesday Night 46°F Light Rain Likely 10 mph SW 61%
Thursday 54°F Light Rain 5 to 10 mph W 76%
Thursday Night 38°F Chance Light Rain 5 to 10 mph N 50%
Friday 49°F Slight Chance Light Rain then Partly Sunny 5 to 15 mph N 20%
Friday Night 31°F Partly Cloudy 0 to 5 mph N 2%
Saturday 51°F Mostly Sunny 0 to 5 mph W 3%
Saturday Night 32°F Partly Cloudy 0 to 5 mph W 8%
Sunday 57°F Slight Chance Light Rain 5 to 10 mph W 18%
Sunday Night 33°F Mostly Clear 5 mph W 5%
Monday 59°F Mostly Sunny 5 to 10 mph SW 1%
Monday Night 38°F Partly Cloudy 5 to 10 mph W 1%

Forecast source: National Weather Service (api.weather.gov) for Ixonia (43.137, -88.596). Updated through the day.

Growing snapshot for Ixonia

Last spring frost
Apr 30
First fall frost
Oct 12
Growing season
164 days
Hardiness zone
5a

More local growing data for Ixonia: nearby ZIP 53036 weather · frost dates · planting calendar · Wisconsin frost dates

Nearby towns & communities

All Wisconsin locations ›

Climate data from the nearest NOAA station, Oconomowoc Wwtp, Wi (6.6 mi from Ixonia). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.