Multnomah County Weather Forecast
Multnomah County weather: 44°F, partly cloudy. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Next 48 hours
Hour-by-hour temperature, precipitation chance and wind.
Best time to go outside today
3 PM - 6 PM · comfort score 7.9/10
The best window to be outside is roughly 3 PM to 6 PM, when temperature, rain chance and wind line up best.
Weather in Multnomah County right now
Source: Open-Meteo. Updated 9:41 AM, Oct 23 local time.
Active alerts for Multnomah County
Frost Advisory issued October 23 at 8:45AM PDT until October 24 at 10:00AM PDT by NWS Portland OR
Issued by NWS Portland OR
See the Multnomah County forecast by time range
Multnomah County weather - more answers
Explore Multnomah County
Every topic we hold for this place, and the same topic for the places around it.
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Frequently asked questions
Where is Multnomah County?
Multnomah County is a county in Oregon. Its coordinates are 45.5152, -122.6784. It lies in North America.
What is the weather like in Multnomah County right now?
It is currently 44°F (7°C) with partly cloudy. Humidity is 80% and wind is 5 mph.
When is the best time to visit Multnomah County?
June, July and August offer the most comfortable conditions in Multnomah County, which has a temperate climate. January, November and December are usually the hardest months for outdoor plans.
What time zone is Multnomah County in?
Multnomah County observes America/Los_Angeles (UTC-07:00). The local time is 9:41 AM.
How many people live in Multnomah County?
Multnomah County has a population of approximately 800.000.
What is the nearest airport to Multnomah County?
The closest airports are Portland International Airport (PDX), 7 mi away, Seattle-Tacoma International Airport (SEA), 135 mi away and Vancouver International Airport (YVR), 255 mi away.
What are the top things to do in Multnomah County?
Popular options include Columbia River, Silver Falls State Park, Mount Hood, Cannon Beach, Mount Rainier and Mount Rainier National Park.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (us-counties) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Weather Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated October 23, 2026 at 9:41 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
