Soggy Skies and Gusty Winds: Portland Braces for a Drenched Wednesday

A Rain-Heavy Morning Kickoff

Portland residents waking up this Wednesday, March 11, 2026, will find the Rose City enveloped in thick, overcast skies and the familiar rhythm of Pacific Northwest rain. As of the early morning hours, temperatures are hovering around 43°F with a high humidity level of 86%. Commuters should prepare for wet pavement immediately, as steady rain is expected to persist throughout the morning hours. Winds are currently coming out of the south-southeast at roughly 8 to 10 mph, adding a slight chill to the air that makes the current conditions feel closer to 38°F.

Midday Peaks and Strengthening Gusts

As we move into the afternoon, the rain is forecast to intensify. While the daily high will reach a relatively mild 53°F, the weather will be anything but pleasant for those on foot. Meteorological data suggests a 100% chance of precipitation throughout the day, with rainfall amounts reaching approximately half an inch by sunset. The wind will also become a more significant factor during the afternoon hours, shifting to the south-southwest and increasing to sustained speeds of 15 to 25 mph. These gusty conditions, combined with heavy downpours, may cause visibility issues for drivers on I-5 and local bridges.

Evening Outlook and Rainfall Warnings

The heaviest deluges are reserved for Wednesday evening and night. Forecasters are warning of an additional inch of rain potentially falling after dark, which could lead to minor localized flooding in areas with poor drainage or heavy leaf debris. The evening temperature will dip slightly to a low of 44°F or 45°F, but the "breezy" conditions will continue, with south-southwest winds maintaining their 15 to 25 mph strength. Residents are encouraged to secure loose outdoor items and ensure gutters are clear to handle the significant runoff.

Today’s Weather Specifications

• Temperature Range: High of 53°F; Low of 44°F.
• Precipitation: 100% chance of rain; total accumulation expected to exceed 1.5 inches.
• Wind Conditions: South-southwest winds at 15-25 mph throughout the day and night.
• Humidity: Staying high between 82% and 92%.
• Visibility: Reducing to under 10 miles during heavy afternoon squalls.

Overall, today is a day for high-quality rain gear and extra caution on the roads. While March often brings transitional weather to Oregon, today’s forecast is a firm reminder that winter’s wet grip hasn't quite released the Willamette Valley just yet. Stay dry, Portland!