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Amherst, WI Weather & Growing Conditions

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

Overnight
58°F
Rain Showers Likely
Rain showers likely before 2am, then rain showers and areas of fog. Cloudy. Low around 58, with temperatures rising to around 60 overnight. South southeast wind around 8 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.

7-day forecast for Amherst

WhenTempForecastWindPrecip
Overnight 58°F Rain Showers Likely 8 mph SSE 78%
Wednesday 62°F Rain Showers Likely 8 to 13 mph S 57%
Wednesday Night 43°F Rain Showers 5 to 10 mph SW 82%
Thursday 51°F Rain Showers Likely 5 to 14 mph NW 65%
Thursday Night 32°F Mostly Cloudy 8 to 13 mph N 5%
Friday 46°F Partly Sunny 3 to 12 mph N 1%
Friday Night 25°F Mostly Clear 2 mph N 0%
Saturday 49°F Sunny 0 to 6 mph WNW 0%
Saturday Night 30°F Mostly Clear 3 to 7 mph W 4%
Sunday 53°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%

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

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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 Nov 4, 2026.