This study assessed heavy metals and some physicochemical properties in rainwater harvested from Lagos, Nigeria. Rainwater was collected from three different locations using varying collectors from the months of April to July, 2013. Physicochemical parameters like pH, temperature, electrical conductivity (EC) and few heavy metals were assessed. Eight Heavy metals were determined by Flame Atomic Absorption Spectrophotometer (AAS). pH (5.1 to 7.6), Temperature (23.0 to 27.2ËC), EC (648 to 894 μS/cm ) is lower than the 1000 μS/cm limit by WHO.