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Lancaster, WI Weather & Growing Conditions

Today
71°F
Showers And Thunderstorms
Showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a high near 71. Southeast wind around 8 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

7-day forecast

WhenTempForecastWindPrecip
Today 71°F Showers And Thunderstorms 8 mph SE 94%
Tonight 59°F Showers And Thunderstorms 5 to 13 mph NE 79%
Sunday 64°F Chance Rain Showers 15 mph NE 51%
Sunday Night 53°F Mostly Cloudy then Slight Chance Rain Showers 16 mph NE 17%
Monday 62°F Slight Chance Rain Showers 15 mph NE 17%
Monday Night 48°F Slight Chance Rain Showers 9 to 14 mph NE 20%
Tuesday 61°F Slight Chance Rain Showers then Partly Sunny 9 to 13 mph NE 20%
Tuesday Night 45°F Partly Cloudy 5 to 9 mph NE 4%
Wednesday 65°F Mostly Sunny 6 to 9 mph NE 2%
Wednesday Night 49°F Partly Cloudy 2 to 6 mph NE 2%
Thursday 66°F Mostly Sunny 3 to 7 mph NE 6%
Thursday Night 51°F Partly Cloudy 3 mph E 3%
Friday 69°F Mostly Sunny 3 to 7 mph E 3%
Friday Night 51°F Partly Cloudy 3 mph E 3%

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 19, 2026.