Sayner, WI Weather & Growing Conditions
Today
75°F
Chance Rain Showers then Mostly Cloudy
A chance of rain showers before noon. Mostly cloudy, with a high near 75. Heat index values as high as 75. West wind 6 to 10 mph, with gusts as high as 24 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 | 75°F | Chance Rain Showers then Mostly Cloudy | 6 to 10 mph W | 44% |
| Tonight | 53°F | Mostly Cloudy | 0 to 6 mph NNW | 6% |
| Wednesday | 74°F | Mostly Sunny | 0 to 5 mph WNW | 0% |
| Wednesday Night | 52°F | Mostly Clear | 3 mph SSE | 0% |
| Thursday | 80°F | Sunny | 3 to 9 mph SW | 1% |
| Thursday Night | 60°F | Mostly Clear | 7 mph SSW | 3% |
| Friday | 83°F | Sunny | 6 to 10 mph SW | 15% |
| Friday Night | 60°F | Chance Showers And Thunderstorms | 3 to 7 mph SW | 37% |
| Saturday | 79°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 to 7 mph WSW | 23% |
| Saturday Night | 59°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 1 to 6 mph WSW | 49% |
| Sunday | 78°F | Chance Showers And Thunderstorms | 2 to 8 mph W | 49% |
| Sunday Night | 56°F | Chance Showers And Thunderstorms | 0 to 6 mph NW | 30% |
| Monday | 77°F | Patchy Fog then Slight Chance Showers And Thunderstorms | 1 to 6 mph NW | 23% |
| Monday Night | 56°F | Slight Chance Showers And Thunderstorms | 1 to 6 mph N | 25% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Sayner, WI
Last spring frost
May 19
First fall frost
Oct 3
Growing season
136 days
Hardiness zone
4b
Explore more for Sayner, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, St Germain, Wi (11 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.