Plattsburg, MO Weather & Growing Conditions
Today
91°F
Mostly Sunny
Mostly sunny, with a high near 91. South wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 91°F | Mostly Sunny | 6 mph S | 12% |
| Tonight | 69°F | Partly Cloudy then Chance Showers And Thunderstorms | 6 mph E | 30% |
| Wednesday | 83°F | Showers And Thunderstorms Likely | 8 mph NE | 59% |
| Wednesday Night | 65°F | Showers And Thunderstorms Likely | 3 to 8 mph NNE | 70% |
| Thursday | 83°F | Showers And Thunderstorms Likely then Partly Sunny | 5 mph ENE | 70% |
| Thursday Night | 66°F | Partly Cloudy | 5 mph ESE | 12% |
| Friday | 88°F | Mostly Sunny | 2 to 7 mph S | 13% |
| Friday Night | 70°F | Slight Chance Showers And Thunderstorms | 5 mph S | 16% |
| Saturday | 92°F | Sunny | 5 to 10 mph S | 10% |
| Saturday Night | 74°F | Mostly Clear | 12 mph S | 4% |
| Sunday | 94°F | Sunny | 10 to 14 mph SSW | 2% |
| Sunday Night | 74°F | Mostly Clear | 12 mph S | 5% |
| Monday | 95°F | Mostly Sunny | 12 to 15 mph SSW | 5% |
| Monday Night | 75°F | Partly Cloudy | 13 mph SSW | 7% |
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 Aug 4, 2026.