King County Weather Forecast
King County weather: 50°F, mainly clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Will it rain in King County?
Possibly - there is a 32% chance in King County today.
A 32% chance means rain is likely somewhere nearby at some point - carry a layer, but do not cancel.
Over the next 7 days, about 1,3 in of precipitation is forecast, with the wettest days falling on Tue, Wed and Thu.
Rainfall over the next 7 days is close to normal for October (1,3 in against a typical 0,9 in).
16-day forecast for King County
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Mon, Oct 26 | 🌦️ Drizzle | 56° / 46° | 32% · 0,0 in | 4 mph | 2 |
| Tue, Oct 27 | 🌧️ Rain | 53° / 46° | 45% · 0,4 in | 16 mph | 3 |
| Wed, Oct 28 | 🌦️ Light showers | 53° / 42° | 72% · 0,4 in | 12 mph | 2 |
| Thu, Oct 29 | ☁️ Overcast | 55° / 41° | 70% | 5 mph | 3 |
| Fri, Oct 30 | 🌦️ Light rain | 50° / 44° | 24% · 0,3 in | 5 mph | 2 |
| Sat, Oct 31 | 🌦️ Light drizzle | 50° / 43° | 7% · 0,1 in | 4 mph | 2 |
| Sun, Nov 1 | 🌦️ Light drizzle | 51° / 42° | 7% · 0,0 in | 6 mph | 2 |
| Mon, Nov 2 | ☁️ Overcast | 49° / 38° | 8% | 6 mph | 2 |
| Tue, Nov 3 | ☁️ Overcast | 54° / 39° | 9% | 6 mph | 2 |
| Wed, Nov 4 | ☁️ Overcast | 56° / 39° | 29% | 3 mph | 2 |
| Thu, Nov 5 | ☁️ Overcast | 53° / 46° | 39% | 3 mph | 1 |
| Fri, Nov 6 | 🌧️ Rain | 50° / 48° | 65% · 1,0 in | 6 mph | 0 |
| Sat, Nov 7 | 🌦️ Drizzle | 60° / 50° | 69% · 0,3 in | 8 mph | 2 |
| Sun, Nov 8 | 🌦️ Light rain | 58° / 52° | 68% · 0,7 in | 11 mph | 2 |
| Mon, Nov 9 | 🌦️ Light rain | 62° / 53° | 68% · 0,2 in | 19 mph | 2 |
| Tue, Nov 10 | 🌦️ Light drizzle | 59° / 50° | 68% · 0,0 in | 9 mph | 2 |
What this means for King County
Today is slightly cooler than average for October. The forecast high of 56°F is 3.2°F below the 59°F typical for this month.
A 32% chance means rain is likely somewhere nearby at some point - carry a layer, but do not cancel.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Northern Hemisphere, so peak summer falls in June to August.
The gap between the warmest and coldest month averages 58°F.
What to pack, what to skip
- A packable rain shell - 3 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 King County forecast by time range
King County weather - more answers
Explore King County
Every topic we hold for this place, and the same topic for the places around it.
Weather for related places
Frequently asked questions
Where is King County?
King County is a county in Washington. Its coordinates are 47.6062, -122.3321. It lies in North America.
What is the weather like in King County right now?
It is currently 50°F (10°C) with mainly clear. Humidity is 86% and wind is 4 mph.
When is the best time to visit King County?
June, July and August offer the most comfortable conditions in King County, which has a temperate climate. January, November and December are usually the hardest months for outdoor plans.
What time zone is King County in?
King County observes America/Los_Angeles (UTC-07:00). The local time is 10:45 PM.
How many people live in King County?
King County has a population of approximately 2.3 million.
What is the nearest airport to King County?
The closest airports are Seattle-Tacoma International Airport (SEA), 11 mi away, Vancouver International Airport (YVR), 117 mi away and Portland International Airport (PDX), 140 mi away.
What are the top things to do in King County?
Popular options include Space Needle, Deception Pass State Park, Mount Rainier National Park, Mount Rainier, Olympic National Park and North Cascades 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 10:45 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
