Seymour, MO Weather & Growing Conditions
Tonight
47°F
Patchy Drizzle
Patchy drizzle. Mostly cloudy, with a low around 47. Wind chill values as low as 43. West wind around 12 mph, with gusts as high as 21 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 47°F | Patchy Drizzle | 12 mph W | 24% |
| Wednesday | 59°F | Patchy Drizzle then Partly Sunny | 7 to 14 mph W | 15% |
| Wednesday Night | 39°F | Clear | 6 mph W | 0% |
| Thursday | 65°F | Sunny then Chance Rain Showers | 5 to 8 mph W | 31% |
| Thursday Night | 40°F | Chance Rain Showers then Mostly Cloudy | 8 mph NW | 31% |
| Friday | 57°F | Partly Sunny | 9 mph N | 1% |
| Friday Night | 37°F | Partly Cloudy | 2 to 6 mph N | 0% |
| Saturday | 57°F | Partly Sunny | 5 mph N | 0% |
| Saturday Night | 35°F | Partly Cloudy | 3 mph NW | 5% |
| Sunday | 61°F | Sunny | 3 to 7 mph NW | 7% |
| Sunday Night | 36°F | Mostly Clear | 5 mph W | 1% |
| Monday | 66°F | Sunny | 5 to 8 mph SW | 1% |
| Monday Night | 40°F | Mostly Clear | 6 mph SW | 1% |
| Tuesday | 69°F | Sunny | 7 mph SW | 0% |
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 Nov 4, 2026.