August in Lillestrøm averages a daily high of 20.4°C with nights around 10.4°C. Expect roughly 12.7 wet days totalling 89.2mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Lillestrøm is June–August.
Based on SKEDSMO HELLERUD, NO (4.6km), 1995–2024. 12 years of August data.