Plain, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Plain, a village in Sauk County, Wisconsin.
Overnight
57°F
Showers And Thunderstorms
Showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a low around 57. East wind around 10 mph. Chance of precipitation is 100%. New rainfall amounts between 2 and 3 inches possible.
7-day forecast for Plain
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 57°F | Showers And Thunderstorms | 10 mph E | 100% |
| Saturday | 70°F | Showers And Thunderstorms | 5 to 10 mph SE | 100% |
| Saturday Night | 55°F | Showers And Thunderstorms | 5 to 10 mph NE | 82% |
| Sunday | 67°F | Scattered Rain Showers then Partly Sunny | 10 to 15 mph NE | 27% |
| Sunday Night | 49°F | Mostly Cloudy | 10 to 15 mph NE | 6% |
| Monday | 63°F | Mostly Cloudy | 10 to 15 mph NE | 9% |
| Monday Night | 44°F | Mostly Cloudy | 5 to 10 mph NE | 7% |
| Tuesday | 63°F | Partly Sunny | 5 to 10 mph NE | 7% |
| Tuesday Night | 43°F | Partly Cloudy | 0 to 10 mph NE | 3% |
| Wednesday | 67°F | Mostly Sunny | 5 to 10 mph NE | 2% |
| Wednesday Night | 46°F | Partly Cloudy | 0 to 5 mph NE | 2% |
| Thursday | 68°F | Mostly Sunny | 0 to 5 mph NE | 3% |
| Thursday Night | 47°F | Partly Cloudy | 0 to 5 mph NE | 2% |
| Friday | 71°F | Mostly Sunny | 0 to 5 mph NE | 3% |
Forecast source: National Weather Service (api.weather.gov) for Plain (43.277, -90.043). Updated through the day.
Growing snapshot for Plain
Last spring frost
Apr 30
First fall frost
Oct 9
Growing season
161 days
Hardiness zone
5a
More local growing data for Plain: nearby ZIP 53577 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Baraboo
Bluffview
Ironton
La Valle
Lake Delton
Lime Ridge
Loganville
Merrimac
North Freedom
Prairie du Sac
Reedsburg
Rock Springs
Sauk City
Spring Green
West Baraboo
Climate data from the nearest NOAA station, Lone Rock Tri Co Ap, Wi (9.1 mi from Plain). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.