Seneca, KS Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Seneca, a city in Nemaha County, Kansas.
Tonight
72°F
Partly Cloudy then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 72. South wind around 5 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
7-day forecast for Seneca
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 72°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 5 mph S | 19% |
| Saturday | 89°F | Chance Showers And Thunderstorms | 5 mph SW | 42% |
| Saturday Night | 63°F | Chance Showers And Thunderstorms | 5 mph N | 46% |
| Sunday | 72°F | Rain Showers Likely | 5 mph N | 57% |
| Sunday Night | 59°F | Showers And Thunderstorms Likely | 5 mph NE | 57% |
| Monday | 66°F | Chance Rain Showers | 5 mph NE | 28% |
| Monday Night | 52°F | Mostly Cloudy | 0 to 5 mph NE | 11% |
| Tuesday | 65°F | Partly Sunny | 5 mph NE | 4% |
| Tuesday Night | 49°F | Partly Cloudy | 0 to 5 mph E | 3% |
| Wednesday | 68°F | Partly Sunny | 0 to 5 mph E | 3% |
| Wednesday Night | 54°F | Mostly Cloudy | 0 mph | 10% |
| Thursday | 69°F | Chance Rain Showers | 0 to 5 mph SE | 36% |
| Thursday Night | 56°F | Chance Rain Showers | 0 mph | 25% |
| Friday | 70°F | Chance Rain Showers | 0 to 5 mph SE | 25% |
Forecast source: National Weather Service (api.weather.gov) for Seneca (39.838, -96.070). Updated through the day.
Growing snapshot for Seneca
Last spring frost
Apr 22
First fall frost
Oct 13
Growing season
173 days
Hardiness zone
6a
More local growing data for Seneca: nearby ZIP 66538 weather · frost dates · planting calendar · Kansas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Baileyville, Ks (7.5 mi from Seneca). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.