Union Center, WI Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Union Center, a village in Juneau County, Wisconsin.

This Afternoon

68°F

Rain Showers Likely

Rain showers likely. Mostly cloudy. High near 68, with temperatures falling to around 66 in the afternoon. South wind 12 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast for Union Center

When	Temp	Forecast	Wind	Precip
This Afternoon	68°F	Rain Showers Likely	12 to 15 mph S	60%
Tonight	55°F	Rain Showers	8 to 12 mph S	94%
Wednesday	57°F	Rain Showers Likely	8 to 14 mph SW	67%
Wednesday Night	44°F	Rain Showers	8 to 12 mph SW	82%
Thursday	53°F	Rain Showers Likely	9 mph NW	74%
Thursday Night	35°F	Slight Chance Rain Showers then Mostly Cloudy	10 mph N	19%
Friday	49°F	Partly Sunny	2 to 9 mph N	6%
Friday Night	28°F	Partly Cloudy	1 mph N	1%
Saturday	53°F	Mostly Sunny	0 to 3 mph W	1%
Saturday Night	31°F	Partly Cloudy	2 mph W	7%
Sunday	58°F	Slight Chance Rain Showers	2 to 8 mph W	17%
Sunday Night	32°F	Mostly Clear	3 mph W	4%
Monday	61°F	Mostly Sunny	2 to 12 mph SW	1%
Monday Night	37°F	Mostly Clear	6 mph W	1%

Forecast source: National Weather Service (api.weather.gov) for Union Center (43.683, -90.263). Updated through the day.

Growing snapshot for Union Center

Last spring frost

May 5

First fall frost

Oct 4

Growing season

153 days

Hardiness zone

More local growing data for Union Center: nearby ZIP 53962 weather · frost dates · planting calendar · Wisconsin frost dates

Nearby towns & communities

Camp Douglas Elroy Hillsboro Hustler Lyndon Station Mauston Necedah New Lisbon Oakdale Wonewoc Wyeville

All Wisconsin locations ›

Climate data from the nearest NOAA station, Hillsboro, Wi (4 mi from Union Center). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.