Knox City, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Knox City, a city in Knox County, Missouri.
Today
90°F
Sunny
Sunny, with a high near 90. South wind around 6 mph.
7-day forecast for Knox City
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 90°F | Sunny | 6 mph S | 1% |
| Tonight | 69°F | Isolated Rain Showers then Isolated Showers And Thunderstorms | 3 mph E | 17% |
| Wednesday | 84°F | Chance Showers And Thunderstorms | 5 mph S | 74% |
| Wednesday Night | 65°F | Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 mph N | 79% |
| Thursday | 83°F | Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 3 mph NE | 79% |
| Thursday Night | 64°F | Partly Cloudy | 2 mph E | 8% |
| Friday | 86°F | Mostly Sunny | 0 to 3 mph W | 8% |
| Friday Night | 67°F | Slight Chance Showers And Thunderstorms | 2 mph S | 22% |
| Saturday | 89°F | Slight Chance Showers And Thunderstorms then Sunny | 2 to 6 mph SW | 19% |
| Saturday Night | 72°F | Mostly Clear | 5 to 8 mph S | 6% |
| Sunday | 92°F | Sunny | 8 to 12 mph SW | 6% |
| Sunday Night | 72°F | Mostly Clear | 6 to 10 mph SW | 14% |
| Monday | 92°F | Mostly Sunny | 7 to 13 mph SW | 14% |
| Monday Night | 72°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 10 mph SW | 22% |
Forecast source: National Weather Service (api.weather.gov) for Knox City (40.144, -92.010). Updated through the day.
Growing snapshot for Knox City
Last spring frost
Apr 17
First fall frost
Oct 19
Growing season
184 days
Hardiness zone
6a
More local growing data for Knox City: nearby ZIP 63446 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Steffenville, Mo (13.2 mi from Knox City). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.