Sayner, WI Weather & Growing Conditions
Overnight
56°F
Rain Showers
Rain showers and areas of fog. Cloudy. Low around 56, with temperatures rising to around 58 overnight. Southeast wind around 6 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 56°F | Rain Showers | 6 mph SE | 93% |
| Wednesday | 61°F | Rain Showers | 5 to 8 mph SSE | 84% |
| Wednesday Night | 38°F | Rain Showers | 3 to 8 mph WSW | 82% |
| Thursday | 43°F | Rain Showers Likely | 12 to 15 mph NNW | 73% |
| Thursday Night | 26°F | Chance Rain And Snow Showers then Cloudy | 7 to 14 mph N | 25% |
| Friday | 41°F | Partly Sunny | 3 to 9 mph N | 4% |
| Friday Night | 24°F | Partly Cloudy | 2 mph N | 0% |
| Saturday | 43°F | Mostly Sunny | 0 to 5 mph W | 0% |
| Saturday Night | 27°F | Partly Cloudy | 6 mph W | 8% |
| Sunday | 48°F | Mostly Sunny | 6 to 9 mph WNW | 13% |
| Sunday Night | 28°F | Partly Cloudy | 1 to 5 mph W | 3% |
| Monday | 52°F | Partly Sunny | 3 to 9 mph WSW | 1% |
| Monday Night | 32°F | Mostly Cloudy | 7 mph W | 3% |
| Tuesday | 49°F | Slight Chance Rain Showers then Mostly Sunny | 3 to 8 mph NW | 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
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 Nov 4, 2026.