Amherst, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Amherst, a village in Portage County, Wisconsin.
Tonight
53°F
Rain Showers
Rain showers before 1am, then showers and thunderstorms. Cloudy, with a low around 53. East wind 8 to 12 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
7-day forecast for Amherst
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 53°F | Rain Showers | 8 to 12 mph E | 86% |
| Saturday | 63°F | Showers And Thunderstorms | 10 to 14 mph E | 82% |
| Saturday Night | 50°F | Rain Showers Likely | 10 mph NE | 66% |
| Sunday | 67°F | Slight Chance Rain Showers then Partly Sunny | 10 to 14 mph NE | 24% |
| Sunday Night | 45°F | Mostly Cloudy | 9 to 13 mph NE | 1% |
| Monday | 61°F | Mostly Cloudy | 13 mph ENE | 2% |
| Monday Night | 42°F | Mostly Cloudy | 7 to 10 mph ENE | 6% |
| Tuesday | 62°F | Partly Sunny | 7 to 12 mph ENE | 6% |
| Tuesday Night | 43°F | Partly Cloudy | 3 to 8 mph NE | 3% |
| Wednesday | 65°F | Mostly Sunny | 3 to 8 mph ENE | 3% |
| Wednesday Night | 45°F | Patchy Fog | 0 to 5 mph NE | 1% |
| Thursday | 69°F | Patchy Fog then Mostly Sunny | 1 to 5 mph NE | 5% |
| Thursday Night | 47°F | Partly Cloudy | 2 mph NE | 6% |
| Friday | 71°F | Mostly Sunny | 0 to 5 mph N | 4% |
Forecast source: National Weather Service (api.weather.gov) for Amherst (44.448, -89.282). Updated through the day.
Growing snapshot for Amherst
Last spring frost
May 8
First fall frost
Oct 6
Growing season
151 days
Hardiness zone
5a
More local growing data for Amherst: nearby ZIP 54406 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Almond
Amherst Junction
Bancroft
Junction City
Nelsonville
Park Ridge
Plover
Polonia
Rosholt
Stevens Point
Whiting
Climate data from the nearest NOAA station, Waupaca, Wi (12.8 mi from Amherst). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.