Plattsburg, MO Weather & Growing Conditions
Today
56°F
Mostly Cloudy
Mostly cloudy, with a high near 56. West wind 9 to 13 mph, with gusts as high as 20 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 56°F | Mostly Cloudy | 9 to 13 mph W | 2% |
| Tonight | 39°F | Mostly Clear | 7 mph W | 1% |
| Thursday | 56°F | Mostly Sunny | 5 to 10 mph WNW | 6% |
| Thursday Night | 40°F | Mostly Cloudy | 6 mph NNW | 6% |
| Friday | 54°F | Partly Sunny | 3 to 7 mph N | 1% |
| Friday Night | 33°F | Mostly Cloudy | 2 mph NE | 0% |
| Saturday | 55°F | Mostly Sunny | 2 mph S | 0% |
| Saturday Night | 35°F | Mostly Clear | 2 mph WSW | 0% |
| Sunday | 61°F | Sunny | 5 mph W | 0% |
| Sunday Night | 37°F | Clear | 2 mph SW | 0% |
| Monday | 67°F | Sunny | 2 to 8 mph SW | 0% |
| Monday Night | 41°F | Mostly Clear | 5 mph WSW | 0% |
| Tuesday | 67°F | Sunny | 5 mph NNW | 0% |
| Tuesday Night | 44°F | Partly Cloudy | 2 mph E | 1% |
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 Nov 4, 2026.