June in Lillestrøm averages a daily high of 21°C with nights around 10.1°C. Expect roughly 13.2 wet days totalling 91.3mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Lillestrøm is June–August.
Based on SKEDSMO HELLERUD, NO (4.6km), 1995–2024. 12 years of June data.