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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| 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
Nearby towns & communities
Bagley
Bloomington
Boscobel
Cuba City
Dickeyville
Fennimore
Glen Haven
Kieler
Livingston
Montfort
Mount Hope
Muscoda
Patch Grove
Platteville
Potosi
Sandy Hook
Tennyson
Woodman
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.