Bismarck, ND Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bismarck, a city in Burleigh County, North Dakota.
This Afternoon
46°F
Cloudy
Cloudy. High near 46, with temperatures falling to around 39 in the afternoon. North wind around 12 mph, with gusts as high as 23 mph.
7-day forecast for Bismarck
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 46°F | Cloudy | 12 mph N | 0% |
| Tonight | 29°F | Mostly Cloudy | 5 to 9 mph NW | 0% |
| Wednesday | 50°F | Partly Sunny | 7 to 12 mph NW | 0% |
| Wednesday Night | 29°F | Mostly Cloudy | 5 to 8 mph N | 0% |
| Thursday | 44°F | Mostly Sunny | 5 mph NE | 0% |
| Thursday Night | 26°F | Partly Cloudy | 5 mph SE | 0% |
| Friday | 50°F | Mostly Sunny | 7 mph SW | 0% |
| Friday Night | 32°F | Mostly Clear | 6 mph SW | 0% |
| Saturday | 57°F | Mostly Sunny | 6 to 15 mph W | 3% |
| Saturday Night | 32°F | Mostly Clear | 2 to 9 mph W | 1% |
| Sunday | 59°F | Sunny | 2 to 9 mph SW | 0% |
| Sunday Night | 39°F | Partly Cloudy | 10 mph SW | 0% |
| Monday | 58°F | Sunny | 9 to 15 mph W | 0% |
| Monday Night | 34°F | Partly Cloudy | 3 to 7 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for Bismarck (46.815, -100.770). Updated through the day.
Growing snapshot for Bismarck
Last spring frost
May 10
First fall frost
Sep 30
Growing season
142 days
Hardiness zone
4a
More local growing data for Bismarck: nearby ZIP 58505 weather · frost dates · planting calendar · North Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Bismarck 2.4 Nnw, Nd (1.2 mi from Bismarck). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.