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.
Today
80°F
Partly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 80. Southwest wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Prairie du Sac
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 80°F | Partly Sunny then Chance Showers And Thunderstorms | 5 to 10 mph SW | 33% |
| Tonight | 61°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 0 to 5 mph W | 74% |
| Wednesday | 76°F | Areas Of Fog then Partly Sunny | 0 to 5 mph W | 39% |
| Wednesday Night | 54°F | Partly Cloudy | 0 mph | 6% |
| Thursday | 79°F | Sunny | 0 mph | 5% |
| Thursday Night | 57°F | Mostly Clear | 0 mph | 1% |
| Friday | 81°F | Sunny | 0 to 5 mph W | 2% |
| Friday Night | 62°F | Mostly Clear | 0 to 5 mph SW | 7% |
| Saturday | 83°F | Mostly Sunny | 5 to 10 mph SW | 12% |
| Saturday Night | 67°F | Chance Showers And Thunderstorms | 5 mph SW | 31% |
| Sunday | 84°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 31% |
| Sunday Night | 64°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 51% |
| Monday | 82°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 5 mph S | 51% |
| Monday Night | 65°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 0 to 5 mph NE | 40% |
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 Aug 4, 2026.