June in Zheleznogorsk is the sunniest month of the year. In June, the weather in Zheleznogorsk is typically warm. Average daily high temperature in June is about 23 degrees above zero. On average, Zheleznogorsk has 13 partly cloudy, 11 sunny, and 6 rainy days in June. The rains are usually light. June as well as July is considered the most comfortable time to visit Zheleznogorsk.