The storm system that has been bringing rain to the Portland, Ore., area is weakening, but will bring more rain, some snow and colder air into Thursday.
"Overnight Wednesday, the low temperature will be in the mid- to upper 30s," said AccuWeather Meteorologist Andy Mussoline.
The overnight low on Tuesday was about 15 degrees warmer, at 45 degrees F.
Daytime temperatures on Thursday will struggle to reach the low 50s. Some lingering showers are also possible.
"A few inches of snow could accumulate in the Cascades at altitudes above 2,500 feet," Mussoline said. "Travel over the passes could be slippery early Thursday morning."
Hawaii will escape the worst, but not all of Guillermo's impacts as the tropical storm passes north of the islands later Wednesday through Thursday.
A developing storm system will track from the Missouri Valley to the mid-Atlantic through Thursday night to produce rounds of showers and thunderstorms with locally heavy rain.
The Northeast will catch a break from heat and humidity for the remainder of the week.
Typhoon Soudelor in the western Pacific Ocean will remain a powerful tropical cyclone this week eventually threatening Taiwan and eastern China.
It has been more than two months since the last report of avian influenza was reported in the United States, but there is concern for a renewed outbreak in the U.S. as birds begin to migrate toward the East Coast.
The dry weather will linger throughout the Cleveland area through most of the weekend.
Persian Gulf (1924)
Water temperature of 96 degrees as measured by a ship.
Ice Harbor Dam, WA (1961)
Temperature of 118 degrees - hottest ever in Washington state.
Casper, WY (1980)
39 degrees, broke 1974 record for the date by 9 degrees.