Seymour, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Seymour, a city in Wayne County, Iowa.
Tonight
47°F
Cloudy
Cloudy. Low around 47, with temperatures rising to around 49 overnight. West wind around 13 mph, with gusts as high as 22 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Seymour
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 47°F | Cloudy | 13 mph W | 13% |
| Wednesday | 54°F | Slight Chance Rain Showers then Mostly Cloudy | 13 to 17 mph W | 15% |
| Wednesday Night | 42°F | Mostly Cloudy | 10 mph W | 8% |
| Thursday | 53°F | Chance Rain Showers | 7 to 12 mph WNW | 28% |
| Thursday Night | 41°F | Slight Chance Rain Showers then Mostly Cloudy | 7 mph NNW | 17% |
| Friday | 53°F | Partly Sunny | 2 to 8 mph N | 5% |
| Friday Night | 35°F | Mostly Cloudy | 1 mph N | 0% |
| Saturday | 55°F | Partly Sunny | 0 to 3 mph W | 2% |
| Saturday Night | 37°F | Mostly Clear | 0 to 3 mph W | 5% |
| Sunday | 61°F | Sunny | 6 mph W | 4% |
| Sunday Night | 38°F | Mostly Clear | 3 mph WSW | 1% |
| Monday | 65°F | Sunny | 5 to 12 mph SW | 0% |
| Monday Night | 42°F | Mostly Clear | 5 mph WNW | 0% |
| Tuesday | 65°F | Sunny | 5 mph NNW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Seymour (40.682, -93.121). Updated through the day.
Growing snapshot for Seymour
Last spring frost
Apr 21
First fall frost
Oct 19
Growing season
178 days
Hardiness zone
5b
More local growing data for Seymour: nearby ZIP 52590 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Allerton, Ia (12.1 mi from Seymour). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.