Seymour, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Seymour, a city in Webster County, Missouri.
Tonight
70°F
Clear
Clear. Low around 70, with temperatures rising to around 72 overnight. South wind 3 to 7 mph.
7-day forecast for Seymour
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 70°F | Clear | 3 to 7 mph S | 3% |
| Saturday | 96°F | Sunny | 7 to 12 mph SW | 1% |
| Saturday Night | 70°F | Mostly Clear | 8 mph SW | 0% |
| Sunday | 93°F | Mostly Sunny | 6 to 9 mph SW | 11% |
| Sunday Night | 66°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 6 mph N | 65% |
| Monday | 83°F | Showers And Thunderstorms Likely | 3 to 10 mph N | 67% |
| Monday Night | 60°F | Showers And Thunderstorms Likely | 10 mph N | 67% |
| Tuesday | 75°F | Slight Chance Rain Showers then Partly Sunny | 10 mph N | 16% |
| Tuesday Night | 53°F | Partly Cloudy | 7 to 10 mph NE | 9% |
| Wednesday | 76°F | Mostly Sunny | 8 mph NE | 0% |
| Wednesday Night | 54°F | Mostly Clear | 7 mph NE | 1% |
| Thursday | 77°F | Mostly Sunny | 6 mph NE | 5% |
| Thursday Night | 56°F | Partly Cloudy | 7 mph NE | 4% |
| Friday | 78°F | Mostly Sunny | 7 mph NE | 6% |
Forecast source: National Weather Service (api.weather.gov) for Seymour (37.147, -92.769). Updated through the day.
Growing snapshot for Seymour
Last spring frost
Apr 23
First fall frost
Oct 17
Growing season
175 days
Hardiness zone
6b
More local growing data for Seymour: nearby ZIP 65746 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Ava 6Nw, Mo (9.4 mi from Seymour). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.