Oregon wakes up under a low gray ceiling, with 45 degrees at Portland International Airport and damp air settling over the metro after 9 a.m. Roads are mostly dry for now, but clouds are thickening and rain is lining up for the late morning commute.
According to the National Weather Service in Portland, rain becomes likely between 10 a.m. and 4 p.m., with highs reaching near 57 degrees. South winds increase to 3 to 8 mph, and precipitation chances climb to 60 percent before steadier rain develops tonight.
By Wednesday, showers turn widespread with a 100 percent chance of rain. Highs hold near 54 degrees. Rainfall totals between a tenth and a quarter inch are possible, with locally higher amounts in heavier bursts. Winds could gust up to 20 mph during afternoon showers. Plan extra time on I-5, I-84 and Highway 26 as ponding develops.
Rain continues Wednesday night and Thursday, when highs slip to near 51 degrees. Friday remains unsettled with rain likely and highs near 53.
While the Cascades pick up mountain snow midweek, valley floors stay rain-only. Snow levels remain well above Portland’s elevation.
Clocks spring ahead at 2 a.m. Sunday, March 8. Longer daylight arrives just as March rain dominates the pattern.
Looking into the 6–10 day window, temperatures may trend slightly milder into next week, hinting at gradual spring warmth building across western Oregon.
Five Day Outlook for Portland, Oregon:
Wednesday: Showers, high 54.
Thursday: Rain, high 51.
Friday: Rain likely, high 53.
Saturday: Chance of rain, high 58.
Sunday: Chance of rain, high 58.
