Today | Weather | Wednesday, December 24, 2025
Active Weather Warnings

Weather in Portland, Oregon

10:08 AM
Now
Cloudy Weather
48° F
Feels Like 39°
Precipitation 40 %
Wind 15 mph
UV Index (0 - 11+) 0
Humidity 81 %
Today
Rainy Weather
Day 52°
Night 39°
Precipitation 75 %
Wind 16 mph
UV Index (0 - 11+) 0

Portland Weather Forecast Updated

16 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (December 24, 2024)
Partly Sunny with Showers

Day

50°

Night

43°

Wind

6 mph

UV Index

1

Precipitation

96 %

Air Quality in Portland

NOW
23 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.27 µg/m³
PM10 1.54 µg/m³
O3 0.025 ppm
NO2 2.8 ppb
SO2 0.1 ppb
CO 0.16 ppm
NH3 0.06 µg/m³
NO 0.18 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.51.27 µg/m³
PM101.54 µg/m³
O349.57 µg/m³
NO25.29 µg/m³
SO20.14 µg/m³
CO178.73 µg/m³
NH30.06 µg/m³
NO0.18 µg/m³

Weather Alerts and Warnings for Portland

Moderate Expected Likely

Wind Advisory

Wind Advisory issued December 24 at 4:38AM PST until December 24 at 4:00PM PST by NWS Portland OR
Dec 24, 7:00 AM Dec 24, 4:00 PM
WHAT: South winds 10 to 25 mph with gusts up to 35 to 50 mph
expected.

WHERE: Greater Portland/Vancouver Metro, Central and Southern
Willamette Valley, Northern and Central Coast Range Valleys and
Mountains of Oregon, Foothills of the Northern and Central Oregon
Cascades, Willapa Hills and Adjacent River Valleys of Pacific and
Wahkiakum Counties, Lower Columbia River and Cowlitz River
Valleys, and South Washington Cascade Foothills.

WHEN: Until 4 PM PST this afternoon.

IMPACTS: Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.

ADDITIONAL DETAILS: The peak winds will occur for only 1 to 3
hours at any given location with gusts of 20 to 40 mph lasting for
another 2 to 3 hours after. Peak winds will begin in Lane county,
moving north into Southwest Washington through the advisory time
frame. There is a 10 percent chance of peak wind gusts 55 to 70
mph through the advisory area.
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Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects such as garbage cans and other objects that can easily blow around.
Updated: Dec 24, 9:51 AM Source: NWS Alert