Seneca, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Seneca, a community in Crawford County, Wisconsin.
This Afternoon
67°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 4pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 67. East wind around 12 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Seneca
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 67°F | Chance Showers And Thunderstorms | 12 mph E | 37% |
| Tonight | 59°F | Showers And Thunderstorms | 8 to 14 mph E | 89% |
| Saturday | 73°F | Showers And Thunderstorms Likely | 8 mph SE | 70% |
| Saturday Night | 57°F | Showers And Thunderstorms Likely | 7 to 10 mph NE | 73% |
| Sunday | 67°F | Chance Rain Showers | 13 mph NE | 28% |
| Sunday Night | 53°F | Mostly Cloudy | 13 mph NE | 7% |
| Monday | 63°F | Chance Rain Showers | 12 mph NE | 37% |
| Monday Night | 48°F | Chance Rain Showers | 7 to 12 mph NE | 37% |
| Tuesday | 61°F | Chance Rain Showers then Partly Sunny | 9 mph NE | 25% |
| Tuesday Night | 45°F | Partly Cloudy | 6 mph NE | 6% |
| Wednesday | 66°F | Mostly Sunny | 6 mph NE | 2% |
| Wednesday Night | 49°F | Partly Cloudy | 3 mph E | 2% |
| Thursday | 68°F | Partly Sunny | 5 mph E | 6% |
| Thursday Night | 51°F | Partly Cloudy | 2 mph E | 6% |
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 Sep 18, 2026.