Portland woke up under a blanket of fog and mist Saturday morning, with temperatures sitting in the mid-40s at Portland International Airport. It will not stay chilly for long, though, as a quick warm-up is on tap, with highs expected to reach about 60 to 61°F this afternoon, Saturday, January 31, 2026. Light southeast breezes should help scour out the low clouds and set up a mostly sunny, almost springlike afternoon before the next Pacific system arrives late tonight.
Foggy Morning, Sunny Afternoon
Patchy fog will gradually lift through the morning, opening the door to partly to mostly sunny skies along the I-5 corridor. That sunshine will push afternoon highs into the upper 50s and lower 60s before clouds start to thicken again. Southeast winds stay on the tame side, generally around 3 mph, and temperatures will slide back into the mid-50s later in the day. According to the National Weather Service, a notably mild airmass is behind the warmer readings and the brief dry break between weather systems.
Tonight Into Sunday: Rain Likely
Rain is expected to move back in late Saturday night, with showers most likely after 1 a.m. as a weak front comes inland. Overnight lows will fall to around 45°F. Sunday is shaping up to be a wet one across the metro area, with a high near 56°F and south winds that could gust to around 20 mph in more exposed spots. Most valley locations should see only a few tenths of an inch of rain, roughly a tenth to a quarter inch, while the north Oregon coast and higher terrain are in line for the heaviest totals.
Coast And Marine Hazards
If you are heading to the coast, it is not just the rain you need to watch. The National Weather Service has issued a beach hazards statement warning of a high sneaker-wave threat for Sunday, February 1, 2026, and Monday, February 2, 2026, and small craft advisories remain up into Monday afternoon. Seas are forecast to build into the 12 to 15 foot range late Sunday, with southerly wind gusts up to 25 to 30 kt, so give the ocean some extra respect. Stay well back from logs, rocks, and jetties, and if you are planning to be near the surf or out razor-clamming this weekend, err on the side of caution and keep a healthy distance from the water.
Plan For The Weekend
For Sunday plans, pack the rain gear and allow a little extra travel time, especially during the morning and again later in the afternoon when slick roads and reduced visibility are most likely. A shift toward drier, milder weather is likely by Tuesday, February 3, 2026, although forecasters note that there is still some uncertainty in how the pattern evolves beyond midweek.
