Bing.com says buy
From Bing.com for your dates from EWR to HNL:
Tip: Buy Lowest fares are likely to rise or hold steady within the next 7 days.
if we are right:
Lowest fares will Rise $29 - $75 | 40% confidence 70% confidence
Lowest fares will Stay within $15 | 30% confidence
if we are wrong:
Lowest fares will Drop $31 - $85 | 30% confidence