Low clouds hang over Portland this morning, dimming the skyline under a soft gray haze. The still air and damp chill mark the calm before several days of steady December rain. Puddles will deepen quickly once the first wave moves through tonight, and by Friday, the region could see 1 to 2 inches of rainfall.
According to the National Weather Service in Portland, patchy fog lingers through late morning before clouds thicken. Light rain begins after 10 p.m., then continues Thursday and Friday with rainfall chances near 100%. The heaviest rain is expected Friday into early Saturday, when saturated ground could cause minor flooding on low-lying streets and near storm drains.
Drivers should prepare for reduced visibility and slick conditions during the Friday morning and evening commutes. Gusty south winds may also accompany heavier bursts of rain late Friday, especially near the coast and Columbia Gorge.
After several dry, cool days, this incoming Pacific system marks Portland’s return to classic early-December weather — wet, gray, and persistent.
Rain remains likely through Sunday, though temperatures will stay mild, holding in the mid-50s by afternoon. The next potential break comes early next week as high pressure briefly rebuilds.
Keep umbrellas handy, clear drains if possible, and allow extra time for travel.
How much rain has fallen in your neighborhood this week? Share your photos below.
Five-Day Outlook for Portland, OR
Today: Fog early, partly sunny later. High 47°F.
Tonight: Rain develops after 10 p.m. Low 40°F.
Thursday: Rain, high 47°F.
Friday: Heavy rain, high 56°F.
Saturday: Rain continues, high 54°F.
Sunday: Rain likely, high 56°F.
