September weather forecast
North Dakota, USA

September marks the onset of autumn in North Dakota, bringing a notable change in temperature and scenery. Minimum temperatures usually range from 45°F (7.2°C) to 55°F (12.8°C), while maximum temperatures fall between 65°F (18.3°C) to 75°F (23.9°C). The warmth of summer begins to yield to cooler days and crisp nights.

Across the state's cities, September offers consistent weather, with clear skies and a decrease in thunderstorm activity. The humidity levels continue to drop, creating comfortable conditions for outdoor activities. The landscape undergoes a transformation as leaves begin to change color, painting the state in shades of gold, red, and orange.

Comparing September to August, there is a clear decrease in temperature, and the transition from summer to autumn becomes more apparent. While daytime temperatures remain pleasant, the evenings and nights begin to cool, hinting at the winter months to come. The days start to shorten, and the chill in the air becomes more pronounced, especially towards the end of the month.

September's weather in North Dakota offers an exquisite blend of lingering summer warmth and the fresh embrace of autumn. It is a time of harvest and celebration, where the state's natural beauty undergoes a stunning transformation. From hiking in the vibrant Great Plains to exploring the rich heritage of the Red River Valley, September provides an idyllic setting for enjoying North Dakota's diverse landscapes and cultural offerings.

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• Fargo - September »
  In Fargo in September, during 8.9 rainfall days, 1.26" (32mm) of precipitation is typically accumulated. In September, the average relative humidity in Fargo is 63%.
• Bismarck - September »
  In Bismarck snow does not fall in June through September. With September's arrival, Bismarck sees a decrease in average high-temperatures, moving from a moderately hot 82.2°F (27.9°C) in August to a pleasant 72°F (22.2°C).
• Grand Forks - September »
  In Grand Forks in September, it is raining for 7.7 days, with typically 0.91" (23mm) of accumulated precipitation. In Grand Forks, in September, it is raining for 7.7 days, with typically 0.91" (23mm) of accumulated precipitation.
• Minot - September »
  On the first day of September in Minot, sunrise is at 7:04 am and sunset at 8:25 pm. In Minot, snow does not fall in June through September.
• West Fargo - September »
  The least humid month in West Fargo is September, with an average relative humidity of 63%. In West Fargo in September, during 8.9 rainfall days, 1.26" (32mm) of precipitation is typically accumulated.
• Williston - September »
  In Williston during September, the rain falls for 9.1 days and regularly aggregates up to 1.61" (41mm) of precipitation. Williston experiences a temperature shift at the start of September, with average high-temperatures adjusting from a moderately hot 82°F (27.8°C) in August to a pleasant 71.2°F (21.8°C).
• Dickinson - September »
  In Dickinson, North Dakota, in September, it is raining for 8.2 days, with typically 1.5" (38mm) of accumulated precipitation. The shift from August to September in Dickinson corresponds with a decrease in the average high-temperature, down to a pleasant 71.4°F (21.9°C) from a moderately hot 81.7°F (27.6°C).
• Mandan - September »
  On the first day of September in Mandan sunrise is at 7:04 am and sunset at 8:22 pm. In Mandan the average relative humidity in September is 57%.
• Jamestown - September »
  In Jamestown in September, it is raining for 8.5 days, with typically 1.42" (36mm) of accumulated precipitation. In Jamestown snow does not fall in June through September.
• Wahpeton - September »
  In Wahpeton, during September, the rain falls for 9.3 days and regularly aggregates up to 1.38" (35mm) of precipitation. In Wahpeton, during September, the rain falls for 9.3 days and regularly aggregates up to 1.38" (35mm) of precipitation.
• Devils Lake - September »
  In Devils Lake snow does not fall in June through September. In Devils Lake, during September, the rain falls for 8.9 days and regularly aggregates up to 1.42" (36mm) of precipitation.
• Valley City - September »
  On the first day of September in Valley City sunrise is at 6:52 am and sunset at 8:10 pm. In Valley City, North Dakota, in September, it is raining for 8.2 days, with typically 1.06" (27mm) of accumulated precipitation.