The highest day temperature in August 2026 was 94°F. The lowest night temperature was 51°F. The average values for day and night temperatures during August were 83.1°F и 64.3°F respectivly.

The average sea surface temperature in August 2026 for Appleton was 78.3°F. The maximum and minimum values were 74.4°F and 80.8°F respectively.

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

Precipitation total in August for Appleton is 1.1 in. It makes august one of the most rainy months of the year.

The average wind speed in August is 7.3 mph. It makes August one of the most windless months of the year for Appleton.

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 Appleton in August is 9.0 hours.