Amherst Junction, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Amherst Junction, a village in Portage County, Wisconsin.
Today
61°F
Rain Showers Likely
Rain showers likely and patchy fog. Mostly cloudy. High near 61, with temperatures falling to around 55 in the afternoon. South wind 9 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Amherst Junction
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 61°F | Rain Showers Likely | 9 to 13 mph S | 61% |
| Tonight | 43°F | Rain Showers | 6 to 10 mph SW | 83% |
| Thursday | 50°F | Rain Showers Likely | 5 to 14 mph NW | 65% |
| Thursday Night | 32°F | Mostly Cloudy | 8 to 13 mph N | 4% |
| Friday | 45°F | Partly Sunny | 3 to 12 mph N | 1% |
| Friday Night | 25°F | Mostly Clear | 2 mph N | 0% |
| Saturday | 48°F | Sunny | 0 to 6 mph WNW | 0% |
| Saturday Night | 30°F | Mostly Clear | 3 to 7 mph W | 4% |
| Sunday | 52°F | Sunny | 8 to 12 mph W | 8% |
| Sunday Night | 31°F | Mostly Clear | 2 to 7 mph W | 1% |
| Monday | 57°F | Mostly Sunny | 2 to 10 mph WSW | 0% |
| Monday Night | 36°F | Partly Cloudy | 8 mph W | 1% |
| Tuesday | 56°F | Sunny | 5 to 9 mph WNW | 3% |
| Tuesday Night | 33°F | Partly Cloudy | 0 to 3 mph NW | 2% |
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.