One lane is closed because of over running resurfacing works on the M4 Westbound between J33 A4232 (Cardiff West And Services) and J34 A4119 (Miskin).
More top news
Some warm spells of sunshine will develop, although scattered heavy and thundery showers are also expected during the afternoon
A yellow 'be aware' warning has been issued by the Met Office for much of Wales.
Wales captain Ashley Williams admits panic will set in watching Gareth Bale in the Champions League final.