(Portland, OR) -- Portland is preparing for a run of six consecutive days in the 90s starting Thursday and lasting through Tuesday. Forecasters say the streak won't set a record but could challenge daily heat marks on Friday and Saturday. The city's longest stretch of 90-degree weather was 10 days in 2009, with a nine-day run in 2022. This latest wave follows a three-day spell earlier this month that topped out at 99 degrees.