FPHW40 PHFO 280945 City Forecast for Honolulu, HI Issued Friday morning - Oct 28, 2005 .Friday... Sunny, high 85, 20% chance of precipitation. .Friday night... Low 73, 20% chance of precipitation. .Saturday... Sunny, high 85, 10% chance of precipitation. .Saturday night... Low 73. .Sunday... High 85.