The Department of Meteorology has forecast showers or thundershowers in the Western, Sabaragamuwa, Southern, and North-Western provinces, as well as in the Jaffna, Mannar, and Kilinochchi districts.
Other areas of the island can expect showers or thundershowers in the evening or night.
Heavy rainfall exceeding 100mm is likely in some parts of the Northern Province, while fairly heavy showers above 50mm are expected in other areas.
The public is advised to take precautions to minimize damage from temporary localized strong winds and lightning during thundershowers.