Seymour, MO Weather & Growing Conditions
Overnight
70°F
Clear
Clear. Low around 70, with temperatures rising to around 72 overnight. South wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 70°F | Clear | 6 mph S | 0% |
| Saturday | 96°F | Sunny | 6 to 12 mph SW | 1% |
| Saturday Night | 69°F | Partly Cloudy | 8 mph SW | 1% |
| Sunday | 93°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 8 mph W | 15% |
| Sunday Night | 66°F | Showers And Thunderstorms | 6 mph N | 75% |
| Monday | 81°F | Showers And Thunderstorms | 5 to 9 mph N | 75% |
| Monday Night | 59°F | Chance Showers And Thunderstorms then Mostly Cloudy | 10 mph N | 53% |
| Tuesday | 73°F | Partly Sunny | 10 mph N | 10% |
| Tuesday Night | 52°F | Partly Cloudy | 7 to 12 mph NE | 2% |
| Wednesday | 75°F | Sunny | 8 mph NE | 0% |
| Wednesday Night | 52°F | Mostly Clear | 7 mph NE | 1% |
| Thursday | 77°F | Mostly Sunny | 6 mph NE | 2% |
| Thursday Night | 55°F | Partly Cloudy | 7 mph E | 7% |
| Friday | 78°F | Partly Sunny | 7 mph E | 13% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Seymour, MO
Last spring frost
Apr 23
First fall frost
Oct 17
Growing season
175 days
Hardiness zone
6b
Explore more for Seymour, MO: full frost dates · planting calendar · Missouri frost dates
Climate data from the nearest NOAA station, Ava 6Nw, Mo (9.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.