Lancaster, WI Weather & Growing Conditions
Tonight
52°F
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy. Low around 52, with temperatures rising to around 56 overnight. South wind 10 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 52°F | Showers And Thunderstorms | 10 to 14 mph S | 87% |
| Wednesday | 55°F | Rain Showers Likely | 13 to 16 mph S | 58% |
| Wednesday Night | 45°F | Rain Showers Likely | 13 to 16 mph SW | 55% |
| Thursday | 52°F | Rain Showers | 13 mph W | 76% |
| Thursday Night | 40°F | Slight Chance Rain Showers then Mostly Cloudy | 12 mph N | 20% |
| Friday | 48°F | Partly Sunny | 5 to 12 mph N | 5% |
| Friday Night | 32°F | Partly Cloudy | 2 mph NW | 1% |
| Saturday | 51°F | Mostly Sunny | 1 to 6 mph W | 2% |
| Saturday Night | 35°F | Partly Cloudy | 5 mph W | 3% |
| Sunday | 58°F | Mostly Sunny | 5 to 9 mph NW | 13% |
| Sunday Night | 36°F | Mostly Clear | 2 to 6 mph SW | 4% |
| Monday | 59°F | Mostly Sunny | 5 to 12 mph SW | 1% |
| Monday Night | 40°F | Mostly Clear | 7 mph W | 0% |
| Tuesday | 59°F | Sunny | 5 to 8 mph W | 1% |
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 Nov 4, 2026.