Sayner, WI Weather & Growing Conditions
Today
76°F
Chance Rain Showers then Partly Sunny
A chance of rain showers between 7am and noon. Partly sunny, with a high near 76. Heat index values as high as 76. West wind 6 to 10 mph, with gusts as high as 23 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 | 76°F | Chance Rain Showers then Partly Sunny | 6 to 10 mph W | 36% |
| Tonight | 53°F | Mostly Cloudy | 0 to 6 mph NNW | 7% |
| Wednesday | 75°F | Patchy Fog then Mostly Sunny | 0 to 5 mph WNW | 0% |
| Wednesday Night | 51°F | Mostly Clear then Patchy Fog | 0 to 3 mph S | 0% |
| Thursday | 80°F | Sunny | 2 to 8 mph SW | 1% |
| Thursday Night | 59°F | Mostly Clear | 6 mph SW | 3% |
| Friday | 83°F | Sunny | 5 to 10 mph SW | 15% |
| Friday Night | 60°F | Chance Showers And Thunderstorms | 3 to 7 mph SW | 38% |
| Saturday | 80°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 5 mph WSW | 48% |
| Sunday | 79°F | Chance Showers And Thunderstorms | 2 to 7 mph W | 48% |
| Sunday Night | 56°F | Chance Showers And Thunderstorms | 0 to 6 mph NW | 30% |
| Monday | 78°F | Areas Of Fog then Slight Chance Showers And Thunderstorms | 0 to 6 mph NW | 24% |
| Monday Night | 56°F | Slight Chance Showers And Thunderstorms | 0 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
4a
Explore more for Sayner, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, St Germain, Wi (0.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.