Plattsburg, MO Weather & Growing Conditions
Today
92°F
Mostly Sunny
Mostly sunny, with a high near 92. Heat index values as high as 97. South southwest wind 8 to 12 mph, with gusts as high as 20 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 92°F | Mostly Sunny | 8 to 12 mph SSW | 6% |
| Tonight | 66°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 2 to 7 mph NW | 71% |
| Sunday | 77°F | Chance Showers And Thunderstorms | 3 to 9 mph N | 35% |
| Sunday Night | 60°F | Showers And Thunderstorms Likely | 6 to 9 mph NE | 64% |
| Monday | 67°F | Showers And Thunderstorms Likely | 10 mph NNE | 64% |
| Monday Night | 54°F | Slight Chance Rain Showers then Mostly Cloudy | 6 to 10 mph NNE | 20% |
| Tuesday | 65°F | Mostly Cloudy | 9 mph NE | 5% |
| Tuesday Night | 49°F | Partly Cloudy | 3 to 7 mph NE | 5% |
| Wednesday | 68°F | Mostly Sunny | 6 mph ENE | 1% |
| Wednesday Night | 52°F | Partly Cloudy | 5 mph ENE | 7% |
| Thursday | 71°F | Slight Chance Rain Showers | 2 to 6 mph E | 22% |
| Thursday Night | 56°F | Mostly Cloudy then Slight Chance Rain Showers | 5 mph E | 22% |
| Friday | 72°F | Chance Rain Showers | 3 to 7 mph E | 26% |
| Friday Night | 57°F | Mostly Cloudy | 6 mph E | 13% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Plattsburg, MO
Last spring frost
Apr 18
First fall frost
Oct 20
Growing season
183 days
Hardiness zone
6a
Explore more for Plattsburg, MO: full frost dates · planting calendar · Missouri frost dates
Climate data from the nearest NOAA station, Smithville Lake, Mo (13.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.