Plattsburg, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Plattsburg, a city in Clinton County, Missouri.
Tonight
66°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 10pm, then showers and thunderstorms likely between 10pm and midnight, then a chance of showers and thunderstorms between midnight and 1am, then showers and thunderstorms likely between 1am and 4am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 66. West wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Plattsburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 66°F | Chance Showers And Thunderstorms | 6 mph W | 61% |
| Sunday | 78°F | Chance Showers And Thunderstorms | 5 to 8 mph N | 43% |
| Sunday Night | 61°F | Showers And Thunderstorms Likely | 5 to 9 mph N | 49% |
| Monday | 69°F | Rain Showers Likely | 6 to 9 mph N | 49% |
| Monday Night | 54°F | Slight Chance Rain Showers then Mostly Cloudy | 6 to 9 mph NNE | 23% |
| Tuesday | 66°F | Partly Sunny | 8 mph NNE | 7% |
| Tuesday Night | 49°F | Partly Cloudy | 3 to 7 mph NE | 3% |
| Wednesday | 68°F | Mostly Sunny | 5 mph ENE | 0% |
| Wednesday Night | 52°F | Partly Cloudy | 3 mph E | 5% |
| Thursday | 73°F | Slight Chance Rain Showers | 5 mph ESE | 21% |
| Thursday Night | 58°F | Chance Rain Showers | 3 mph E | 30% |
| Friday | 76°F | Chance Rain Showers | 2 to 6 mph E | 33% |
| Friday Night | 60°F | Mostly Cloudy then Slight Chance Rain Showers | 5 mph E | 17% |
| Saturday | 79°F | Slight Chance Rain Showers | 7 mph ESE | 18% |
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 Sep 20, 2026.