Napoleon, ND Weather & Growing Conditions
Today
47°F
Mostly Cloudy
Mostly cloudy. High near 47, with temperatures falling to around 44 in the afternoon. Northwest wind 15 to 18 mph, with gusts as high as 29 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 47°F | Mostly Cloudy | 15 to 18 mph NW | 0% |
| Tonight | 29°F | Mostly Cloudy | 12 to 15 mph N | 0% |
| Thursday | 40°F | Partly Sunny | 3 to 12 mph N | 0% |
| Thursday Night | 24°F | Partly Cloudy | 5 to 9 mph SE | 0% |
| Friday | 46°F | Mostly Sunny | 10 mph S | 0% |
| Friday Night | 30°F | Partly Cloudy | 9 mph SW | 0% |
| Saturday | 54°F | Mostly Sunny | 10 to 17 mph SW | 0% |
| Saturday Night | 32°F | Mostly Clear | 6 to 10 mph W | 0% |
| Sunday | 56°F | Sunny | 6 to 14 mph SW | 0% |
| Sunday Night | 38°F | Partly Cloudy | 12 mph SW | 0% |
| Monday | 57°F | Mostly Sunny | 9 to 16 mph NW | 0% |
| Monday Night | 33°F | Mostly Clear | 7 mph NW | 1% |
| Tuesday | 53°F | Mostly Sunny | 5 to 9 mph SW | 1% |
| Tuesday Night | 35°F | Partly Cloudy | 7 mph S | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Napoleon, ND
Last spring frost
May 13
First fall frost
Sep 28
Growing season
136 days
Hardiness zone
4a
Explore more for Napoleon, ND: full frost dates · planting calendar · North Dakota frost dates
Climate data from the nearest NOAA station, Napoleon, Nd (8.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.