The highest day temperature in June 2026 was 91°F. The lowest night temperature was 39°F. The average values for day and night temperatures during June were 71.6°F и 50.8°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 0.7 in. It makes june one of the most rainy months of the year.

The average wind speed in June is 7.7 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 10.5 hours.