Sayner, WI Weather & Growing Conditions
Overnight
55°F
Rain Showers
Rain showers and areas of fog. Cloudy. Low around 55, with temperatures rising to around 57 overnight. Southeast wind around 6 mph. Chance of precipitation is 90%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 55°F | Rain Showers | 6 mph SE | 91% |
| Wednesday | 61°F | Rain Showers | 5 to 8 mph S | 81% |
| Wednesday Night | 37°F | Rain Showers | 3 to 9 mph WSW | 88% |
| Thursday | 43°F | Rain Showers Likely then Chance Rain And Snow Showers | 15 mph NNW | 74% |
| Thursday Night | 26°F | Chance Rain And Snow Showers then Cloudy | 7 to 14 mph N | 36% |
| Friday | 40°F | Partly Sunny | 3 to 9 mph N | 6% |
| Friday Night | 24°F | Partly Cloudy | 2 mph N | 0% |
| Saturday | 43°F | Mostly Sunny | 0 to 6 mph W | 0% |
| Saturday Night | 28°F | Partly Cloudy | 6 mph W | 9% |
| Sunday | 47°F | Slight Chance Rain Showers | 9 mph WNW | 16% |
| Sunday Night | 29°F | Partly Cloudy | 2 to 6 mph W | 6% |
| Monday | 52°F | Partly Sunny | 5 to 10 mph WSW | 2% |
| Monday Night | 33°F | Mostly Cloudy | 5 to 8 mph W | 7% |
| Tuesday | 49°F | Slight Chance Rain Showers then Mostly Sunny | 5 to 9 mph WNW | 15% |
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 Nov 4, 2026.