Seneca, WI Weather & Growing Conditions
Tonight
52°F
Chance Rain Showers
A chance of rain showers. Mostly cloudy. Low around 52, with temperatures rising to around 55 overnight. South wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 52°F | Chance Rain Showers | 10 mph S | 53% |
| Wednesday | 56°F | Rain Showers | 9 to 15 mph S | 75% |
| Wednesday Night | 45°F | Rain Showers | 12 to 15 mph SW | 77% |
| Thursday | 50°F | Rain Showers | 12 mph NW | 80% |
| Thursday Night | 38°F | Slight Chance Rain Showers then Mostly Cloudy | 8 to 13 mph N | 16% |
| Friday | 49°F | Partly Sunny | 3 to 9 mph N | 2% |
| Friday Night | 31°F | Partly Cloudy | 2 mph NW | 1% |
| Saturday | 52°F | Mostly Sunny | 1 to 6 mph W | 1% |
| Saturday Night | 34°F | Mostly Clear | 5 mph W | 5% |
| Sunday | 58°F | Sunny | 5 to 9 mph W | 14% |
| Sunday Night | 35°F | Mostly Clear | 5 mph SW | 5% |
| Monday | 61°F | Mostly Sunny | 5 to 10 mph SW | 1% |
| Monday Night | 39°F | Mostly Clear | 7 mph W | 1% |
| Tuesday | 59°F | Sunny | 7 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Seneca, WI
Last spring frost
May 3
First fall frost
Oct 7
Growing season
156 days
Hardiness zone
5a
Explore more for Seneca, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Gays Mills, Wi (6.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.