Plattsburg, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Plattsburg, a city in Clinton County, Missouri.
Today
91°F
Mostly Sunny
Mostly sunny, with a high near 91. Heat index values as high as 95. South wind around 6 mph.
7-day forecast for Plattsburg
| 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 | 29% |
| Wednesday | 83°F | Showers And Thunderstorms Likely | 8 mph NE | 58% |
| Wednesday Night | 65°F | Showers And Thunderstorms Likely | 3 to 8 mph NNE | 70% |
| Thursday | 84°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 6 mph S | 12% |
| Friday Night | 69°F | Slight Chance Showers And Thunderstorms | 5 mph S | 15% |
| Saturday | 92°F | Sunny | 3 to 10 mph S | 10% |
| Saturday Night | 74°F | Mostly Clear | 10 mph S | 3% |
| Sunday | 94°F | Sunny | 9 to 13 mph SSW | 2% |
| Sunday Night | 74°F | Mostly Clear | 12 mph S | 5% |
| Monday | 95°F | Mostly Sunny | 10 to 14 mph SSW | 5% |
| Monday Night | 75°F | Partly Cloudy | 12 mph SSW | 7% |
Forecast source: National Weather Service (api.weather.gov) for Plattsburg (39.554, -94.463). Updated through the day.
Growing snapshot for Plattsburg
Last spring frost
Apr 18
First fall frost
Oct 20
Growing season
183 days
Hardiness zone
6a
More local growing data for Plattsburg: nearby ZIP 64477 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Smithville Lake, Mo (13.8 mi from Plattsburg). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.