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Lancaster, WI Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Lancaster, a city in Grant County, Wisconsin.

Overnight
62°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 1am, then showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a low around 62. East wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

7-day forecast for Lancaster

WhenTempForecastWindPrecip
Overnight 62°F Chance Showers And Thunderstorms 14 mph E 93%
Saturday 71°F Showers And Thunderstorms 8 to 12 mph SE 91%
Saturday Night 59°F Showers And Thunderstorms 7 to 13 mph NE 88%
Sunday 67°F Chance Rain Showers then Mostly Cloudy 15 mph NE 26%
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 6 to 9 mph NE 4%
Wednesday 65°F Mostly Sunny 9 mph NE 2%
Wednesday Night 49°F Partly Cloudy 6 mph NE 1%
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%

Forecast source: National Weather Service (api.weather.gov) for Lancaster (42.847, -90.706). Updated through the day.

Growing snapshot for Lancaster

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

More local growing data for Lancaster: nearby ZIP 53813 weather · frost dates · planting calendar · Wisconsin frost dates

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Climate data from the nearest NOAA station, Lancaster 4 Wsw, Wi (3.8 mi from Lancaster). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.