Prairie du Sac, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Prairie du Sac, a village in Sauk County, Wisconsin.
This Afternoon
67°F
Showers And Thunderstorms
Showers and thunderstorms before 5pm, then a chance of showers and thunderstorms. Cloudy, with a high near 67. East wind around 5 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Prairie du Sac
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 67°F | Showers And Thunderstorms | 5 mph E | 99% |
| Tonight | 57°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 5 to 10 mph NE | 76% |
| Sunday | 66°F | Mostly Cloudy | 10 to 15 mph NE | 13% |
| Sunday Night | 49°F | Mostly Cloudy | 10 to 15 mph NE | 3% |
| Monday | 63°F | Mostly Cloudy then Chance Rain Showers | 10 mph NE | 25% |
| Monday Night | 46°F | Chance Rain Showers | 5 to 10 mph NE | 26% |
| Tuesday | 62°F | Chance Rain Showers then Partly Sunny | 5 to 10 mph NE | 26% |
| Tuesday Night | 45°F | Partly Cloudy | 5 mph NE | 4% |
| Wednesday | 65°F | Mostly Sunny | 5 to 10 mph NE | 3% |
| Wednesday Night | 47°F | Partly Cloudy | 0 to 5 mph NE | 2% |
| Thursday | 68°F | Partly Sunny then Slight Chance Rain Showers | 0 to 5 mph NE | 15% |
| Thursday Night | 50°F | Slight Chance Rain Showers then Mostly Cloudy | 0 mph | 15% |
| Friday | 72°F | Partly Sunny | 0 to 5 mph NE | 5% |
| Friday Night | 50°F | Partly Cloudy | 0 mph | 5% |
Forecast source: National Weather Service (api.weather.gov) for Prairie du Sac (43.294, -89.735). Updated through the day.
Growing snapshot for Prairie du Sac
Last spring frost
May 4
First fall frost
Oct 6
Growing season
155 days
Hardiness zone
5a
More local growing data for Prairie du Sac: nearby ZIP 53578 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Baraboo
Bluffview
Ironton
La Valle
Lake Delton
Lime Ridge
Loganville
Merrimac
North Freedom
Plain
Reedsburg
Rock Springs
Sauk City
Spring Green
West Baraboo
Climate data from the nearest NOAA station, Sauk City Wwtp, Wi (3.8 mi from Prairie du Sac). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.