Portland rolled into Monday under a gray, soggy sky, with light rain, fog and temperatures in the mid‑40s already setting the tone. The steady rain is expected to hang around through the day, with highs near 49°F before dropping back into the mid‑40s by afternoon. The heaviest bands could wring out 1–2 inches of new rain across the metro, with even higher totals in the Coast Range and Cascades. Drivers can count on wet pavement, pooled water in low spots and slower‑than‑usual commutes.
When The Rain Will Fall
The main pulse of moisture holds over the region from Monday into early Tuesday, with rain staying fairly steady through Monday night and into Tuesday morning. Overnight lows land around 41°F, and the chance of precipitation stays high into Tuesday as highs climb back toward 50°F. Across the metro, another 1–2 inches of rainfall is possible, with higher amounts closer to the coast and in the mountains, according to the National Weather Service Portland.
Coastal And Marine Hazards
Out on the water, conditions started rough and stay that way for a while. Seas near 10–14 feet were reported early Monday, with a Hazardous Seas Warning in effect into the evening before conditions ease into a Small Craft Advisory overnight into Tuesday. Those big, wind‑driven waves translate to dangerous surf along the coast, so staying off rocks and jetties and keeping children and pets well back from the water is the smart move. Offshore mariners are advised to seek safe harbor and check the latest marine forecasts before heading back out.
Commutes And What To Do
On city streets, ponding in low‑lying areas and slowed traffic are the name of the game, so drivers should ease off the gas, leave extra stopping distance and avoid plowing through standing water. The Portland Bureau of Transportation notes that sand and sandbags are available at Lents Park and Gabriel Park, and it is asking people to report clogged drains or road hazards to PBOT maintenance dispatch at 503‑823‑1700, according to the Portland Bureau of Transportation.
