Amherst, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Amherst, a village in Portage County, Wisconsin.
This Afternoon
62°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Cloudy, with a high near 62. East northeast wind around 10 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Amherst
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 62°F | Showers And Thunderstorms Likely | 10 mph ENE | 68% |
| Tonight | 51°F | Chance Showers And Thunderstorms | 6 to 10 mph NE | 48% |
| Sunday | 66°F | Mostly Sunny | 8 to 14 mph NE | 2% |
| Sunday Night | 45°F | Mostly Cloudy | 12 mph NE | 0% |
| Monday | 61°F | Mostly Cloudy | 9 to 13 mph ENE | 0% |
| Monday Night | 42°F | Mostly Cloudy | 7 to 10 mph ENE | 4% |
| Tuesday | 61°F | Partly Sunny | 7 to 12 mph ENE | 4% |
| Tuesday Night | 43°F | Partly Cloudy | 5 to 9 mph ENE | 3% |
| Wednesday | 64°F | Mostly Sunny | 5 to 10 mph ENE | 3% |
| Wednesday Night | 46°F | Patchy Fog | 1 to 7 mph ENE | 1% |
| Thursday | 66°F | Patchy Fog | 1 to 6 mph ENE | 15% |
| Thursday Night | 48°F | Slight Chance Rain Showers then Mostly Cloudy | 0 to 3 mph NE | 15% |
| Friday | 70°F | Partly Sunny | 0 to 3 mph ENE | 5% |
| Friday Night | 49°F | Partly Cloudy | 2 mph ENE | 3% |
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 20, 2026.