In June, the weather in Zheleznogorsk-Ilimsky is typically warm. Average daily high temperature in June is about 21 degrees above zero. On average, Zheleznogorsk-Ilimsky has 13 partly cloudy, 8 sunny, 6 rainy, and 3 cloudy days in June. The rains are usually moderate. June as well as July is considered the most comfortable time to visit Zheleznogorsk-Ilimsky.