Multnomah County Weather Forecast
Multnomah County weather: 53°F, overcast. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Will it rain in Multnomah County?
Yes - rain is likely in Multnomah County today.
A 71% chance means rain is expected over most of the area. Plan indoor alternatives. Around 0,4 in is forecast, which is enough to soak trails and slow traffic.
Over the next 7 days, about 1,8 in of precipitation is forecast, with the wettest days falling on Mon, Tue, Wed and Thu.
Rainfall over the next 7 days is close to normal for October (1,8 in against a typical 1,4 in).
16-day forecast for Multnomah County
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Mon, Oct 26 | 🌧️ Rain | 54° / 49° | 71% · 0,4 in | 12 mph | 1 |
| Tue, Oct 27 | 🌦️ Light rain | 53° / 47° | 40% · 0,2 in | 12 mph | 3 |
| Wed, Oct 28 | 🌧️ Rain | 56° / 45° | 85% · 0,7 in | 13 mph | 3 |
| Thu, Oct 29 | 🌧️ Heavy drizzle | 55° / 43° | 72% · 0,1 in | 4 mph | 3 |
| Fri, Oct 30 | 🌦️ Light drizzle | 52° / 44° | 27% · 0,1 in | 7 mph | 2 |
| Sat, Oct 31 | 🌧️ Heavy drizzle | 50° / 42° | 6% · 0,2 in | 4 mph | 1 |
| Sun, Nov 1 | 🌦️ Light drizzle | 52° / 44° | 5% · 0,0 in | 3 mph | 2 |
| Mon, Nov 2 | ☁️ Overcast | 55° / 40° | 6% | 10 mph | 2 |
| Tue, Nov 3 | ☁️ Overcast | 58° / 44° | 14% | 12 mph | 3 |
| Wed, Nov 4 | ☁️ Overcast | 58° / 45° | 37% | 10 mph | 3 |
| Thu, Nov 5 | ☁️ Overcast | 56° / 49° | 47% | 8 mph | 1 |
| Fri, Nov 6 | 🌦️ Light showers | 54° / 49° | 65% · 0,7 in | 7 mph | 0 |
| Sat, Nov 7 | 🌧️ Showers | 61° / 51° | 74% · 0,7 in | 11 mph | 2 |
| Sun, Nov 8 | 🌧️ Heavy drizzle | 57° / 53° | 85% · 0,3 in | 15 mph | 1 |
| Mon, Nov 9 | 🌦️ Drizzle | 59° / 53° | 80% · 0,2 in | 11 mph | 1 |
| Tue, Nov 10 | ☁️ Overcast | 62° / 52° | 68% | 4 mph | 2 |
What this means for Multnomah County
Today is cooler than average for October. The forecast high of 54°F is 8.1°F below the 62°F typical for this month.
A 71% chance means rain is expected over most of the area. Plan indoor alternatives. Around 0,4 in is forecast, which is enough to soak trails and slow traffic.
Wet roads are likely; braking distances roughly double in heavy rain.
Northern Hemisphere, so peak summer falls in June to August.
The gap between the warmest and coldest month averages 63°F.
What to pack, what to skip
- A packable rain shell - 4 of the next 7 days carry a real chance of rain
- If your dates are flexible, avoid January, November and December - historically the least comfortable months here.
See the Multnomah County forecast by time range
Multnomah County weather - more answers
Explore Multnomah County
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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 53°F (12°C) with overcast. Humidity is 88% and wind is 7 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 10:50 PM.
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 26, 2026 at 10:50 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
