Bismarck Weather in October
During October, Bismarck experiences moderate daytime temperatures of 14°C (57°F) and cooler nights around 1°C (34°F). Some rainfall is typical during this period.
Rainfall in Bismarck in October
Historically, approximately 9 days this month are expected to have rain, averaging 40 mm (1.6 in). Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.
Temperature in Bismarck in October
October in Bismarck brings typical temperatures with highs around 14°C (57°F) and lows of 1°C (34°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights fall to 1°C (34°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.
Sunshine in Bismarck in October
With approximately 191 hours of sunshine, the days are filled with clear skies. Despite it being a cool month, it makes for pleasant days outside.If your ideal day consists of dry skies and pleasant temperatures, May, June, July, August and September typically offer the best circumstances for Bismarck.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Bismarck's climate page.
Bismarck Temperature in October
Min Temperature
1°C (34°F)
Max Temperature
14°C (57°F)
Chance of Rain
29%
Precipitation
40 mm (1.6 in)
Rainy days
9 days
Humidity
63%
Sunshine
191 hours
Percentage Sunshine
57%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Bismarck typically drop from around 17°C (63°F) at the start of October to approximately 10°C (50°F) by the end. Nights are cold, with lows typically ranging from -3°C (27°F) to 5°C (41°F).
Average temperatures in October
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in October
Historical weather for Bismarck in October
Browse day-by-day weather records for Bismarck spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Bismarck historical weather extremes in October
Our historical data for Bismarck spans 1976 to 2025, revealing these weather extremes.
Best Places in the United States of America in October
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in October →
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What to Wear in Bismarck in October
The weather can swing between comfortable and chilly in October, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Wet weather is likely, so pack waterproof gear for multiple rainy days. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Bismarck in October
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Bismarck's climate page.
Temperature Rainfall Sunshine Humidity
See the full Bismarck climate overview or explore weather in the United States of America.
