Bismarck, ND Weather & Growing Conditions
Today
65°F
Patchy Fog
Patchy fog before 1pm. Cloudy, with a high near 65. Northeast wind 5 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 65°F | Patchy Fog | 5 to 10 mph NE | 13% |
| Tonight | 50°F | Chance Rain Showers | 13 mph NE | 41% |
| Sunday | 60°F | Chance Rain Showers | 9 to 13 mph E | 28% |
| Sunday Night | 48°F | Slight Chance Rain Showers | 3 to 9 mph E | 24% |
| Monday | 66°F | Mostly Sunny | 3 to 10 mph SE | 10% |
| Monday Night | 47°F | Partly Cloudy | 10 mph SE | 4% |
| Tuesday | 67°F | Mostly Sunny | 12 to 21 mph SE | 3% |
| Tuesday Night | 51°F | Mostly Cloudy | 18 mph SE | 7% |
| Wednesday | 71°F | Partly Sunny | 20 mph SE | 9% |
| Wednesday Night | 53°F | Slight Chance Rain Showers | 8 to 16 mph SE | 16% |
| Thursday | 74°F | Mostly Sunny | 7 to 10 mph SE | 12% |
| Thursday Night | 54°F | Partly Cloudy | 12 mph SE | 10% |
| Friday | 75°F | Partly Sunny | 12 to 18 mph SE | 7% |
| Friday Night | 56°F | Mostly Cloudy then Slight Chance Rain Showers | 16 to 23 mph SE | 17% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Bismarck, ND
Last spring frost
May 12
First fall frost
Sep 24
Growing season
134 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, Breien, Nd (13.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.