Seneca, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Seneca, a community in Crawford County, Wisconsin.
Overnight
64°F
Partly Cloudy
Partly cloudy, with a low around 64. South wind around 7 mph.
7-day forecast for Seneca
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 64°F | Partly Cloudy | 7 mph S | 0% |
| Tuesday | 79°F | Chance Showers And Thunderstorms | 8 mph SW | 39% |
| Tuesday Night | 61°F | Chance Showers And Thunderstorms | 3 to 7 mph NW | 57% |
| Wednesday | 76°F | Slight Chance Rain Showers then Partly Sunny | 5 mph NW | 16% |
| Wednesday Night | 55°F | Partly Cloudy | 1 to 5 mph NW | 3% |
| Thursday | 80°F | Sunny | 3 mph S | 2% |
| Thursday Night | 59°F | Mostly Clear | 2 mph S | 0% |
| Friday | 83°F | Sunny | 2 to 8 mph S | 4% |
| Friday Night | 63°F | Mostly Clear | 5 to 8 mph S | 14% |
| Saturday | 84°F | Mostly Sunny | 5 to 8 mph SW | 13% |
| Saturday Night | 68°F | Partly Cloudy then Chance Showers And Thunderstorms | 7 mph SW | 36% |
| Sunday | 85°F | Chance Showers And Thunderstorms | 6 to 9 mph W | 36% |
| Sunday Night | 66°F | Chance Showers And Thunderstorms | 5 to 8 mph SE | 45% |
| Monday | 84°F | Chance Rain Showers | 7 mph S | 45% |
Forecast source: National Weather Service (api.weather.gov) for Seneca (43.266, -90.957). Updated through the day.
Growing snapshot for Seneca
Last spring frost
May 3
First fall frost
Oct 7
Growing season
156 days
Hardiness zone
5a
More local growing data for Seneca: nearby ZIP 54654 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Gays Mills, Wi (6.2 mi from Seneca). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.