The highest day temperature in June 2026 was 77°F. The lowest night temperature was 27°F. The average values for day and night temperatures during June were 68.9°F и 35.8°F respectivly.

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

Precipitation total in June for Keystone is 1.1 in.

The average wind speed in June is 6.7 mph. This value is relatively stable throughout the year.

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 Keystone in June is 10.3 hours.