Sauk City, WI Weather & Growing Conditions
Today
60°F
Cloudy then Isolated Rain Showers
Isolated rain showers after 3pm. Cloudy. High near 60, with temperatures falling to around 53 in the afternoon. Southwest wind 10 to 15 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 60°F | Cloudy then Isolated Rain Showers | 10 to 15 mph SW | 14% |
| Tonight | 45°F | Rain Showers Likely | 10 mph SW | 58% |
| Thursday | 54°F | Rain Showers Likely then Slight Chance Light Rain | 10 mph W | 58% |
| Thursday Night | 37°F | Mostly Cloudy | 5 to 10 mph N | 8% |
| Friday | 48°F | Partly Sunny | 5 to 10 mph N | 2% |
| Friday Night | 28°F | Partly Cloudy | 0 mph | 0% |
| Saturday | 51°F | Sunny | 0 to 5 mph NW | 0% |
| Saturday Night | 32°F | Mostly Clear | 0 to 5 mph W | 2% |
| Sunday | 57°F | Sunny | 5 to 10 mph W | 5% |
| Sunday Night | 34°F | Mostly Clear | 0 to 5 mph W | 1% |
| Monday | 62°F | Mostly Sunny | 0 to 10 mph SW | 0% |
| Monday Night | 38°F | Mostly Clear | 0 to 5 mph W | 0% |
| Tuesday | 61°F | Sunny | 0 to 5 mph NW | 0% |
| Tuesday Night | 37°F | Partly Cloudy | 0 mph | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Sauk City, WI
Last spring frost
May 4
First fall frost
Oct 6
Growing season
155 days
Hardiness zone
5a
Explore more for Sauk City, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Sauk City Wwtp, Wi (4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.