Amherst Junction, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Amherst Junction, a village in Portage County, Wisconsin.
Tonight
58°F
Rain Showers
Rain showers before 8pm, then rain showers and areas of fog. Cloudy, with a low around 58. South southeast wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Amherst Junction
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 58°F | Rain Showers | 10 mph SSE | 89% |
| Wednesday | 62°F | Rain Showers | 9 to 13 mph S | 87% |
| Wednesday Night | 45°F | Rain Showers | 8 to 12 mph SW | 81% |
| Thursday | 51°F | Rain Showers | 7 to 13 mph NW | 90% |
| Thursday Night | 34°F | Chance Rain Showers then Mostly Cloudy | 13 mph N | 30% |
| Friday | 46°F | Partly Sunny | 6 to 13 mph N | 6% |
| Friday Night | 27°F | Partly Cloudy | 2 mph N | 1% |
| Saturday | 50°F | Mostly Sunny | 0 to 5 mph W | 0% |
| Saturday Night | 31°F | Partly Cloudy | 5 mph W | 13% |
| Sunday | 55°F | Slight Chance Rain Showers then Mostly Sunny | 5 to 10 mph WNW | 15% |
| Sunday Night | 32°F | Mostly Clear | 6 mph W | 3% |
| Monday | 56°F | Mostly Sunny | 3 to 12 mph WSW | 1% |
| Monday Night | 36°F | Partly Cloudy | 8 mph W | 0% |
| Tuesday | 56°F | Sunny | 7 to 10 mph WNW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Amherst Junction (44.469, -89.317). Updated through the day.
Growing snapshot for Amherst Junction
Last spring frost
May 4
First fall frost
Oct 7
Growing season
155 days
Hardiness zone
5a
More local growing data for Amherst Junction: nearby ZIP 54458 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Almond
Amherst
Bancroft
Junction City
Nelsonville
Park Ridge
Plover
Polonia
Rosholt
Stevens Point
Whiting
Climate data from the nearest NOAA station, Stevens Pt, Wi (13.8 mi from Amherst Junction). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.