Napoleon, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Napoleon, a city in Lafayette County, Missouri.
Today
57°F
Mostly Cloudy
Mostly cloudy, with a high near 57. West wind 6 to 10 mph, with gusts as high as 18 mph.
7-day forecast for Napoleon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 57°F | Mostly Cloudy | 6 to 10 mph W | 1% |
| Tonight | 39°F | Mostly Clear | 5 mph WSW | 1% |
| Thursday | 57°F | Mostly Sunny | 3 to 7 mph WNW | 0% |
| Thursday Night | 41°F | Mostly Cloudy | 3 mph NNW | 14% |
| Friday | 55°F | Partly Sunny | 6 mph N | 1% |
| Friday Night | 33°F | Mostly Cloudy | 2 mph N | 0% |
| Saturday | 55°F | Mostly Sunny | 1 mph NW | 0% |
| Saturday Night | 34°F | Partly Cloudy | 0 mph | 0% |
| Sunday | 61°F | Sunny | 2 mph WNW | 0% |
| Sunday Night | 36°F | Clear | 1 mph NW | 0% |
| Monday | 66°F | Sunny | 1 to 6 mph SSW | 0% |
| Monday Night | 40°F | Clear | 2 mph SW | 0% |
| Tuesday | 68°F | Sunny | 3 mph WNW | 0% |
| Tuesday Night | 43°F | Partly Cloudy | 1 mph NE | 1% |
Forecast source: National Weather Service (api.weather.gov) for Napoleon (39.128, -94.089). Updated through the day.
Growing snapshot for Napoleon
Last spring frost
Apr 19
First fall frost
Oct 18
Growing season
180 days
Hardiness zone
6a
More local growing data for Napoleon: nearby ZIP 64074 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Alma
Aullville
Bates City
Concordia
Corder
Dover
Higginsville
Lake Lafayette
Lexington
Mayview
Odessa
Waverly
Wellington
Climate data from the nearest NOAA station, Richmond 3S, Mo (12.2 mi from Napoleon). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.