Bismarck, ND 14-Day Forecast
North Dakota, United States 🇺🇸
The 14-day forecast for Bismarck is temporarily unavailable - please check back shortly. Meanwhile, the monthly averages below give a reliable picture of what to expect.
Bismarck 14-day outlook: the story
The best time to visit Bismarck is generally May to September, when these are the warmest and brightest weeks of the year. Daytime temperatures in that window sit near 76°F (25°C), with rain on about 8 days a month. For the same question asked the other way round, see where else is warm in May.
For typical conditions month by month, see the Bismarck climate & average temperatures guide.
Average temperatures in Bismarck by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 24° | 8° | 4 | 0.5 in | 5.9 h/day | 8.9 h | 13% | 78% |
| February | 27° | 8° | 4 | 0.6 in | 7.8 h/day | 10.2 h | 15% | 69% |
| March | 40° | 20° | 6 | 0.9 in | 8.9 h/day | 11.8 h | 18% | 68% |
| April | 51° | 31° | 8 | 1.9 in | 9.3 h/day | 13.5 h | 27% | 62% |
| May | 67° | 45° | 10 | 2.6 in | 11.4 h/day | 15.0 h | 33% | 61% |
| June | 78° | 57° | 8 | 2.7 in | 13.1 h/day | 15.8 h | 28% | 60% |
| July | 83° | 63° | 8 | 2.1 in | 13.5 h/day | 15.5 h | 27% | 62% |
| August | 81° | 60° | 6 | 2.4 in | 11.8 h/day | 14.2 h | 21% | 63% |
| September | 73° | 53° | 7 | 2.0 in | 9.9 h/day | 12.5 h | 23% | 63% |
| October | 56° | 38° | 5 | 1.5 in | 8.0 h/day | 10.8 h | 17% | 64% |
| November | 40° | 24° | 4 | 0.8 in | 6.5 h/day | 9.3 h | 14% | 70% |
| December | 27° | 12° | 6 | 1.0 in | 5.6 h/day | 8.6 h | 19% | 75% |
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