The highest day temperature in September 2026 was 81°F. The lowest night temperature was 49°F. The average values for day and night temperatures during September were 67.0°F и 57.7°F respectivly.

Most of the days in September are sunny but you can also expect cloudy and gloomy days.

Precipitation total in September for Devils Lake is 0.3 in.

The average wind speed in September is 10.2 mph. It makes September one of the most windy months of the year for Devils Lake.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Devils Lake in September is 8.2 hours.