The highest day temperature in June 2026 was 100°F. The lowest night temperature was 50°F. The average values for day and night temperatures during June were 87.0°F и 64.6°F respectivly.

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

Precipitation total in June for Allentown is 1.1 in. It makes june one of the least rainy months of the year.

The average wind speed in June is 6.0 mph. It makes June one of the most windless months of the year for Allentown.

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 Allentown in June is 8.9 hours.