Bismarck, ND Weather & Growing Conditions
Overnight
46°F
Mostly Clear
Mostly clear. Low around 46, with temperatures rising to around 48 overnight. West wind around 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 46°F | Mostly Clear | 9 mph W | 0% |
| Tuesday | 76°F | Sunny | 7 to 13 mph W | 0% |
| Tuesday Night | 50°F | Mostly Clear | 1 to 13 mph W | 0% |
| Wednesday | 84°F | Mostly Sunny | 2 to 12 mph W | 0% |
| Wednesday Night | 54°F | Mostly Clear | 3 to 10 mph SW | 1% |
| Thursday | 90°F | Sunny | 3 to 10 mph W | 0% |
| Thursday Night | 59°F | Mostly Clear | 3 to 10 mph E | 0% |
| Friday | 88°F | Sunny | 5 to 10 mph NW | 0% |
| Friday Night | 58°F | Mostly Clear | 6 to 9 mph E | 1% |
| Saturday | 91°F | Sunny | 6 to 12 mph NE | 1% |
| Saturday Night | 59°F | Mostly Clear | 7 to 10 mph NE | 4% |
| Sunday | 86°F | Mostly Sunny | 6 to 13 mph E | 9% |
| Sunday Night | 60°F | Slight Chance Showers And Thunderstorms | 8 to 13 mph NE | 29% |
| Monday | 84°F | Chance Showers And Thunderstorms | 9 to 13 mph NE | 29% |
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 Aug 4, 2026.