North Dakota weather in August 2025

Expect 28°C daytime maximum temperatures in the shade with on average 10 hours of sunshine per day in North Dakota in August. Check more long-term weather averages for North Dakota in August before you book your next holiday to North Dakota in 2025/2026.

  • 28°C maximum daytime temperature in August in North Dakota (Bismarck)28
    28°C max day temperature
  • 10 hours of sunshine per day
  • 8 days with some rainfall in August in North Dakota (Bismarck)8
    8 days with some rainfall
  • 12°C minimum night-time temperature in August in North Dakota (Bismarck)12
    12°C min night temperature
  • 14 hours of daylight per day in August in North Dakota (Bismarck)14
    14 hours of daylight per day
  • Low heat & humidity in August in North Dakota (Bismarck)L
    Low heat & humidity
  • 44 mm monthly rainfall in August in North Dakota (Bismarck)44
    44 mm of monthly rainfall
  • UV (maximum) index 7 (High) in August in North Dakota (Bismarck)7
    7 (High) UV index

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The August weather guide for North Dakota (Bismarck) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Top North Dakota destinations

Below are average maximum temperatures at popular countries, regions and places in North Dakota in August. Select a holiday destination to see more weather parameters.

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Metric (°C / mm)  |  Imperial (°F / inches)

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How hot is it in North Dakota in August?

Daytime temperatures usually reach 28°C in Bismarck, North Dakota in August with low heat and humidity, falling to 12°C at night.

How sunny is it in North Dakota in August?

There are normally 10 hours of bright sunshine each day in Bismarck, North Dakota in August - that's 72% of daylight hours.

Does it rain in North Dakota in August?

There are usually 8 days with some rain in Bismarck, North Dakota in August and the average monthly rainfall is 44mm.

North Dakota August sunrise & sunset times

Browse the sunrise and sunset times for North Dakota in August 2025. Select a month to view North Dakota sunrise and sunset times for the next 12 months. The North Dakota sunrise and sunset times shown below are for Bismarck.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:24 20:14
Saturday, 16th August 2025 05:43 19:51
Sunday, 31st August 2025 06:02 19:24

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