Seymour, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Seymour, a city in Outagamie County, Wisconsin.
Tonight
55°F
Rain Showers
Rain showers before 1am, then showers and thunderstorms. Cloudy, with a low around 55. East wind 5 to 8 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast for Seymour
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 55°F | Rain Showers | 5 to 8 mph E | 88% |
| Saturday | 63°F | Showers And Thunderstorms | 12 mph E | 86% |
| Saturday Night | 52°F | Rain Showers Likely | 10 mph NE | 69% |
| Sunday | 67°F | Partly Sunny | 10 to 14 mph NE | 9% |
| Sunday Night | 49°F | Mostly Cloudy | 9 to 13 mph NE | 1% |
| Monday | 61°F | Mostly Cloudy | 9 to 13 mph NE | 4% |
| Monday Night | 45°F | Mostly Cloudy | 9 mph NE | 4% |
| Tuesday | 62°F | Partly Sunny | 7 to 12 mph NE | 4% |
| Tuesday Night | 46°F | Partly Cloudy | 7 mph NE | 5% |
| Wednesday | 65°F | Mostly Sunny | 5 to 8 mph NE | 5% |
| Wednesday Night | 47°F | Partly Cloudy | 5 mph NE | 3% |
| Thursday | 69°F | Mostly Sunny | 5 mph NE | 5% |
| Thursday Night | 49°F | Partly Cloudy | 2 mph ENE | 4% |
| Friday | 71°F | Mostly Sunny | 3 mph N | 4% |
Forecast source: National Weather Service (api.weather.gov) for Seymour (44.514, -88.327). Updated through the day.
Growing snapshot for Seymour
Last spring frost
May 1
First fall frost
Oct 11
Growing season
160 days
Hardiness zone
5a
More local growing data for Seymour: nearby ZIP 54165 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Appleton
Bear Creek
Black Creek
Combined Locks
Dale
Fox Crossing
Greenville
Hortonville
Kaukauna
Kimberly
Little Chute
Navarino
Nichols
Shiocton
Climate data from the nearest NOAA station, Green Bay Wfo, Wi (10.2 mi from Seymour). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.