Rain last 24 hours at PDX: .02"
December Rain: .39" Departure from Normal : -2.58"
Rainfall since October 1st (water year): 11.40" Departure from Normal: -.20"
Drippy through Monday, then significant rain and mountain snow move in Tuesday
Drizzle continues in SW WA along the North Oregon Coast, and Northern part of the Willamette Valley on this Sunday (12/17/17). Gray, overcast skies will be the general story for everyone across the region today. Colder air stays put East of the Cascades, but daytime highs to the West will remain about average, in the mid 40s.
Expect showers or drizzle to sag at times into SW WA and NW Oregon through Monday. Tuesday we have our first significant storm system set to drop in through the day. Rain will be ramping up into the afternoon and evening hours. Mountain snow will start accumulating, too. Pass level snow will be adding up, too, especially later Tuesday into Wednesday. Driving over the Cascade passes will likely become difficult and require chains by then as well.
The rain will taper back to showers by Wednesday morning. Some freezing fog may be a part of Thursday morning, with much colder air in place and clearing skies behind the system. Friday the East Wind starts to kick up and will become fairly strong, especially at the West end of the Gorge through the weekend. Cold, dry and clear conditions will continue into Christmas.
Today (Sunday 12/17/17) - Overcast, drizzle at times esp. Salem Northward - 46
Tonight - Showers or drizzle mainly in SW WA, overcast elsewhere - 43
Monday - Showers at times - 48
Tuesday - Rain, windy at the Coast, mountain snow - 49
Meteorologist Mary Loos
Today's Record Temperatures