Tomorrow in Bismarck looks
overcast, with a high of 57°
and an overnight low of 37°.
Precipitation chance is modest at 19%.
Winds top out near 6 mph,
and the UV index reaches 1 (low).
Average conditions span from January lows near 8°F (-14°C) to July highs around 83°F (28°C). That 42°C (76°F) spread makes the time of year especially important.
Seasonal change
July highs reach 83°F (28°C), while January lows fall to 8°F (-14°C).
Typical day and night
Bismarck averages 54°F (12°C) by day and 35°F (2°C) at night across the year.
Rain and sunshine
About 485 mm (19.1 inches) falls across 78 wet days, with 9.3 hours of sunshine on an average day.
Its 44°F (7°C) annual average is cooler than 97% of the 3496 cities in our dataset, which are all measured on the same 2015-2024 basis.
Is there snow in Bismarck?
Yes - about 18 days a year carry measurable snowfall, concentrated October through April.
When does it rain most in Bismarck?
June, at 2.7 inches (70 mm) over about 8 days. January is the driest month, at 14 mm (0.5 in).
Which month is warmest in Bismarck?
July, averaging 83°F (28°C) by day and 63°F (17°C) overnight. The hottest single day in our 2015-2024 record for this location reached 100°F (38°C).
How humid does Bismarck get?
Relative humidity averages 66% across the year, which reads as moderate. The most comfortable stretch falls in the drier half of the year.
When is Bismarck at its coldest?
January, with highs of 24°F (-5°C) and lows near 8°F (-14°C). The coldest day in the 2015-2024 record fell to -32°F (-36°C).
When should I visit Bismarck?
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.
Does it rain a lot in Bismarck?
19.1 inches (485 mm) a year across 78 wet days - less than 84% of the cities we cover.