Today should be our hottest day in 3 years in Portland. The airmass overhead has warmed a few degrees, we actually have an easterly wind blowing through the Gorge, and it’ll be sunny the entire day. By 5pm we can expect to see widespread 99-103 degree temperatures through the Willamette Valley and Portland metro area. The last time we hit 100 was in August 2012. Regardless of the final temp, it’ll be the warmest of summer so far. Notice no one in the metro area has moved above 99 so far this season:
Tomorrow will be a scorcher as well, but probably not 100 degrees. Then we slowly cool closer to 90 Saturday and Sunday.
Believe it or not, we won’t have a record high in Portland today since this is one of three days we’ve hit 107 degrees; our all-time high. It happened on July 30, 1965 and then again TWICE during the great 1981 heat wave. We were 107, then 105, then 107 again over a three day period. That was August 8-10th, 1981.
Chief Meteorologist Mark Nelsen