spokane average june temperature
National Weather Service data shows that the high temperature in Spokane on June First averages 71 degrees Fahrenheit and the high on the final day of June averages 79 degrees.The low measured temperature in Spokane on June First averages 48 degrees and the low on the last day of the month averages 52 degrees.ational Weather Service data shows that the high temperature in Spokane on June First averages 71 degrees Fahrenheit and the high on the final day of June averages 79 degrees.