Bismarck, ND Weather & Growing Conditions
This Afternoon
46°F
Mostly Cloudy
Mostly cloudy. High near 46, with temperatures falling to around 41 in the afternoon. Northwest wind 10 to 14 mph, with gusts as high as 24 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 46°F | Mostly Cloudy | 10 to 14 mph NW | 0% |
| Tonight | 29°F | Mostly Cloudy | 5 to 8 mph N | 0% |
| Wednesday | 50°F | Partly Sunny | 7 to 12 mph NW | 0% |
| Wednesday Night | 29°F | Mostly Cloudy | 5 to 8 mph NW | 0% |
| Thursday | 44°F | Mostly Sunny | 5 mph NE | 0% |
| Thursday Night | 26°F | Partly Cloudy | 5 mph SE | 0% |
| Friday | 51°F | Mostly Sunny | 6 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 | 60°F | Sunny | 2 to 9 mph SW | 0% |
| Sunday Night | 40°F | Mostly Clear | 7 to 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). Updated through the day.
Growing snapshot for Bismarck, ND
Last spring frost
May 10
First fall frost
Sep 30
Growing season
142 days
Hardiness zone
4a
Explore more for Bismarck, ND: full frost dates · planting calendar · North Dakota frost dates
Climate data from the nearest NOAA station, Bismarck 2.4 Nnw, Nd (1.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.