St. Nazianz, WI Weather & Growing Conditions
Today
84°F
Partly Sunny then Chance Showers And Thunderstorms
A slight chance of rain showers between 3pm and 4pm, then a chance of showers and thunderstorms. Partly sunny. High near 84, with temperatures falling to around 82 in the afternoon. Heat index values as high as 87. Southwest wind 10 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Partly Sunny then Chance Showers And Thunderstorms | 10 to 15 mph SW | 38% |
| Tonight | 63°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 5 to 10 mph W | 83% |
| Wednesday | 77°F | Chance Showers And Thunderstorms | 6 mph E | 24% |
| Wednesday Night | 58°F | Chance Rain Showers | 1 to 5 mph S | 22% |
| Thursday | 80°F | Slight Chance Rain Showers then Mostly Sunny | 2 to 6 mph W | 7% |
| Thursday Night | 59°F | Mostly Clear | 6 mph SSW | 4% |
| Friday | 84°F | Sunny | 5 to 12 mph SSW | 1% |
| Friday Night | 64°F | Mostly Clear | 10 mph SW | 6% |
| Saturday | 85°F | Sunny then Slight Chance Showers And Thunderstorms | 9 to 13 mph SW | 15% |
| Saturday Night | 67°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 7 to 12 mph SW | 36% |
| Sunday | 85°F | Chance Showers And Thunderstorms | 8 to 12 mph WSW | 36% |
| Sunday Night | 64°F | Chance Showers And Thunderstorms | 5 to 10 mph WSW | 50% |
| Monday | 80°F | Chance Rain Showers | 5 to 8 mph SE | 32% |
| Monday Night | 64°F | Chance Showers And Thunderstorms | 5 to 8 mph NNE | 40% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for St. Nazianz, WI
Last spring frost
May 1
First fall frost
Oct 14
Growing season
162 days
Hardiness zone
5b
Explore more for St. Nazianz, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Chilton, Wi (11.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.