Junction City, WI Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Junction City, a village in Portage County, Wisconsin.

Overnight

54°F

Showers And Thunderstorms

Showers and thunderstorms. Cloudy, with a low around 54. East wind around 12 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.

7-day forecast for Junction City

When	Temp	Forecast	Wind	Precip
Overnight	54°F	Showers And Thunderstorms	12 mph E	78%
Saturday	63°F	Rain Showers	12 to 16 mph E	79%
Saturday Night	49°F	Rain Showers Likely	8 to 12 mph NE	65%
Sunday	68°F	Slight Chance Rain Showers then Partly Sunny	10 to 15 mph NE	16%
Sunday Night	44°F	Mostly Cloudy	9 to 13 mph NE	1%
Monday	63°F	Mostly Cloudy	14 mph ENE	3%
Monday Night	41°F	Mostly Cloudy	10 mph ENE	5%
Tuesday	63°F	Mostly Sunny	8 to 12 mph ENE	5%
Tuesday Night	42°F	Partly Cloudy	5 to 8 mph ENE	3%
Wednesday	66°F	Sunny	5 to 9 mph ENE	1%
Wednesday Night	45°F	Partly Cloudy	1 to 6 mph E	2%
Thursday	69°F	Mostly Sunny	5 mph ESE	6%
Thursday Night	47°F	Partly Cloudy	3 mph WSW	6%
Friday	72°F	Mostly Sunny	2 to 6 mph NNW	5%

Forecast source: National Weather Service (api.weather.gov) for Junction City (44.595, -89.770). Updated through the day.

Growing snapshot for Junction City

Last spring frost

May 4

First fall frost

Oct 7

Growing season

155 days

Hardiness zone

More local growing data for Junction City: nearby ZIP 54443 weather · frost dates · planting calendar · Wisconsin frost dates

Nearby towns & communities

Almond Amherst Amherst Junction Bancroft Nelsonville Park Ridge Plover Polonia Rosholt Stevens Point Whiting

All Wisconsin locations ›

Climate data from the nearest NOAA station, Stevens Pt, Wi (10.6 mi from Junction City). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.