There is limited available data for today, but it appears that it will be ~20˚C (~70˚F) with a strong chance of afternoon showers.
The rainfall radar shows current activity over the ocean to the south east, and scattered rain over central Fiji.
The mixed IR/Visible satellite imagery shows that the major cloud system has crossed over the islands towards the south.
The system is quite impressive compared to the size of the islands.
The high pressure center has moved off to the south east of Fiji, the entire islands are roughly overcast, and a cold front is moving towards the islands from the south west. This front may make contact with the islands, though there are a lot of interactions with the high pressure systems that can change things.
Fiji Weather 