The Meteorology Department forecasts showers or thundershowers at times in the Eastern Province, while other areas may experience similar conditions during the evening or night.
Fairly heavy showers of about 75mm are likely in parts of the Central, Sabaragamuwa, Eastern, and Southern provinces, the department added.
Misty conditions are expected in the Central and Sabaragamuwa provinces during the morning.
The public is kindly advised to take adequate precautions to minimize damage from localized strong winds and lightning during thundershowers.