UPDATE Sept. 27: National Weather Service Portland has changed their forecast for possible frost this weekend to Sunday and Monday and advise plant owners these still will be the coldest temperatures of the season, but clouds and moisture will keep the coast mild.
“The coldest temperatures of the season with frost in some spots will be Sunday and Monday nights,” National Weather Service meteorologist Colby Neuman said.”There should be enough cloud cover and moisture to keep temperatures mild on Saturday Night. Inland from the immediate coast will be where the cold spots are, like Otis and Nestucca.
NWS is still advising owners of sensitive plants to bring them in to protect them from the cold.
National Weather Service Portland issued a Special Weather Statement at 3:33 a.m. Thursday for the Central Oregon Coast predicting temperatures in the mid to upper 30s this weekend
According to NWS, a low pressure system will bring a cool fall-like air mass into the Pacific Northwest over the weekend. Temperatures are expected to run 10-15 degrees below normal starting Friday.
The coldest overnight lows are expected Saturday, Sunday and Monday nights, with lows in the mid to upper 30s possible in outlying lowlands.
NWS is advising people with sensitive plants to bring them indoors over the weekend.