The Department of Meteorology says several spells of showers are expected in the Western and Sabaragamuwa provinces and in Kandy, Nuwara-Eliya, Galle and Matara districts.
A few showers will occur in Northern and North-Western provinces.
Showers or thundershowers may occur at a few places in Uva province and in Ampara and Batticaloa districts during the evening or night.
Strong winds of about 40-45 kmph can be expected at times in the western slopes of the central hills, North-Central province and in Puttalam, Hambantota and Trincomalee districts.
The general public is advised to take adequate precautions to minimize damages caused by temporary localized strong winds and lightning during thundershowers.