Seymour, IA Weather & Growing Conditions
This Afternoon
51°F
Cloudy
Cloudy. High near 51, with temperatures falling to around 49 in the afternoon. West southwest wind 12 to 15 mph, with gusts as high as 22 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 51°F | Cloudy | 12 to 15 mph WSW | 6% |
| Tonight | 41°F | Cloudy | 10 mph W | 13% |
| Thursday | 53°F | Slight Chance Rain Showers | 10 mph NW | 16% |
| Thursday Night | 39°F | Cloudy | 7 mph N | 5% |
| Friday | 49°F | Partly Sunny | 3 to 7 mph N | 4% |
| Friday Night | 29°F | Partly Cloudy | 2 mph NNE | 0% |
| Saturday | 52°F | Mostly Sunny | 0 to 3 mph W | 0% |
| Saturday Night | 33°F | Mostly Clear | 3 mph WSW | 0% |
| Sunday | 61°F | Sunny | 5 mph W | 0% |
| Sunday Night | 36°F | Mostly Clear | 3 mph SW | 0% |
| Monday | 65°F | Sunny | 3 to 12 mph SW | 0% |
| Monday Night | 41°F | Clear | 5 mph WSW | 0% |
| Tuesday | 65°F | Sunny | 3 mph NW | 2% |
| Tuesday Night | 42°F | Partly Cloudy | 2 mph N | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Seymour, IA
Last spring frost
Apr 21
First fall frost
Oct 19
Growing season
178 days
Hardiness zone
5b
Explore more for Seymour, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Allerton, Ia (12.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 5, 2026.