Hawke's Bay winds generated in the west usually dumped any rain in the ranges before reaching the coast, but Mr Law was reluctant to rule out a band of rain pushing in from the west and reaching Napier and Hastings by Saturday.
Today's forecast is warm and sunny with light winds and sea breezes in Napier, accompanied by a high of 27C.
Hastings is expected to reach 28C.
Tomorrow sees another sunny day for the twin cities, with a high of 26C forecast for Napier and Hastings.
Further south, Dannevirke will also enjoy the warm temperatures, with a high of 27C today and 25C tomorrow, accompanied by some scattered cloud cover.