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Lancaster, WI Weather & Growing Conditions

This Afternoon
71°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Cloudy. High near 71, with temperatures falling to around 69 in the afternoon. Southeast wind around 3 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 71°F Chance Showers And Thunderstorms 3 mph SE 31%
Tonight 59°F Chance Showers And Thunderstorms 5 to 13 mph NE 54%
Sunday 67°F Chance Showers And Thunderstorms then Cloudy 15 mph NE 33%
Sunday Night 53°F Mostly Cloudy then Slight Chance Rain Showers 15 mph NE 19%
Monday 62°F Chance Rain Showers 15 mph NE 49%
Monday Night 49°F Chance Rain Showers 13 mph NE 49%
Tuesday 61°F Chance Rain Showers then Partly Sunny 13 mph NE 27%
Tuesday Night 47°F Partly Cloudy 5 to 9 mph NE 5%
Wednesday 64°F Mostly Sunny 6 to 9 mph NE 3%
Wednesday Night 50°F Partly Cloudy 2 to 6 mph NE 0%
Thursday 67°F Partly Sunny 5 mph E 9%
Thursday Night 53°F Mostly Cloudy 3 mph E 9%
Friday 70°F Partly Sunny 5 mph NE 5%
Friday Night 54°F Partly Cloudy 3 mph E 5%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Lancaster, WI

Last spring frost
Apr 27
First fall frost
Oct 11
Growing season
166 days
Hardiness zone
5a

Explore more for Lancaster, WI: full frost dates · planting calendar · Wisconsin frost dates

Climate data from the nearest NOAA station, Lancaster 4 Wsw, Wi (3.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.