Showers will occur in Western and Sabaragamuwa provinces and in Galle and Matara districts, the Department of Meteorology says.
Showers or thundershowers may occur at several places in Central, Uva and Eastern provinces during the evening or night.
However, mainly fair weather will prevail elsewhere.
The general public is advised to take adequate precautions to minimize damages caused by temporary localized strong winds and lightning during thundershowers.
