Fortuna, ND Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fortuna, a city in Divide County, North Dakota.
Tonight
47°F
Cloudy
Cloudy, with a low around 47. East wind 8 to 12 mph, with gusts as high as 20 mph.
7-day forecast for Fortuna
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 47°F | Cloudy | 8 to 12 mph E | 5% |
| Sunday | 62°F | Mostly Cloudy then Slight Chance Rain Showers | 13 mph E | 16% |
| Sunday Night | 45°F | Partly Cloudy | 7 to 10 mph SE | 5% |
| Monday | 67°F | Mostly Sunny | 7 to 16 mph S | 0% |
| Monday Night | 48°F | Mostly Clear | 13 to 16 mph SE | 0% |
| Tuesday | 69°F | Sunny | 16 to 24 mph S | 0% |
| Tuesday Night | 51°F | Mostly Clear | 15 to 21 mph SE | 1% |
| Wednesday | 72°F | Mostly Sunny | 13 to 16 mph S | 7% |
| Wednesday Night | 53°F | Partly Cloudy | 12 mph S | 10% |
| Thursday | 77°F | Mostly Sunny | 8 to 12 mph S | 7% |
| Thursday Night | 54°F | Mostly Clear | 7 to 13 mph SE | 4% |
| Friday | 77°F | Mostly Sunny | 14 to 23 mph SE | 4% |
| Friday Night | 53°F | Partly Cloudy | 18 to 22 mph SE | 12% |
| Saturday | 68°F | Partly Sunny | 20 mph SW | 12% |
Forecast source: National Weather Service (api.weather.gov) for Fortuna (48.910, -103.779). Updated through the day.
Growing snapshot for Fortuna
Last spring frost
May 19
First fall frost
Sep 17
Growing season
121 days
Hardiness zone
3b
More local growing data for Fortuna: nearby ZIP 58844 weather · frost dates · planting calendar · North Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Fortuna 1 W, Nd (2.9 mi from Fortuna). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.