Napoleon, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Napoleon, a city in Lafayette County, Missouri.
Overnight
66°F
Partly Cloudy
Partly cloudy, with a low around 66. South southeast wind around 3 mph.
7-day forecast for Napoleon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 66°F | Partly Cloudy | 3 mph SSE | 0% |
| Tuesday | 94°F | Mostly Sunny | 5 mph S | 3% |
| Tuesday Night | 71°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 3 mph SE | 21% |
| Wednesday | 88°F | Chance Showers And Thunderstorms | 2 to 6 mph ESE | 44% |
| Wednesday Night | 66°F | Showers And Thunderstorms Likely | 5 mph NNE | 83% |
| Thursday | 86°F | Showers And Thunderstorms then Partly Sunny | 3 mph NE | 83% |
| Thursday Night | 67°F | Partly Cloudy | 2 mph ESE | 14% |
| Friday | 90°F | Mostly Sunny | 0 to 3 mph S | 14% |
| Friday Night | 69°F | Mostly Clear | 2 mph S | 14% |
| Saturday | 93°F | Sunny | 2 to 7 mph S | 13% |
| Saturday Night | 73°F | Mostly Clear | 6 mph S | 4% |
| Sunday | 95°F | Sunny | 7 to 10 mph SSW | 2% |
| Sunday Night | 74°F | Mostly Clear | 8 mph S | 3% |
| Monday | 96°F | Mostly Sunny | 8 to 12 mph SSW | 3% |
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 Aug 4, 2026.