For mid June, the past few days have seen rather crisp temperatures with overnight lows dropping into the 40s over some Iowans and comfortable highs in the 70s. For Des Moines, the coolest daily high temperature for June happened on Sunday (72°F) and coolest low (53°F) on Monday. The featured chart looks into the frequency of a given day of June having either the coolest high or low temperature for the month of June during a given year. While there is certainly a decreasing trend in frequency as the month progresses, such dates can happen any date of the month. The near term forecast does not have much in the way of significant heat.