Weather in Seattle Today
Current temperature in Seattle: 19°C (66°F). Overcast. Today's high 20°C (68°F), low 14°C (57°F).
Today's Daylight Forecast
Moon & Islamic Calendar
Air quality and UV are both favourable great conditions for a walk, run, or outdoor activity.
5-Day Weather Forecast
Full 15-Day ForecastAtmospheric Details
Today vs Normal
The long-term average high for today is 21°C.
11 of the last 20 days with published data ran above normal.
That's a break from the pattern - today's forecast runs below normal even though the recent stretch mostly ran above.
Red = above normal, blue = at or below · last 12 days
Air Quality
Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.
Health & Activity Advice
UV index is 3 today — moderate. Sunscreen is worth using for extended time outside, but no special precautions are needed for short trips.
Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.
Conditions are comfortable for outdoor activity at most points during the day today.
Nearby Regional Outlook
Seattle Weather Radar
Live precipitation · Cloud cover · Wind
Frequently Asked Questions
What is the hottest month in Seattle?
The hottest month in Seattle is typically August, with daytime highs averaging around 24.8°C (77°F), based on 10 years of historical weather data. Overnight lows during this period average near 15.1°C (59°F).
What is the coldest month in Seattle?
The coldest month in Seattle is typically February, with overnight lows averaging around 2.3°C (36°F) and daytime highs near 7.9°C (46°F), based on 10 years of historical weather data.
Does Seattle have a rainy season?
Seattle doesn't have a sharply defined rainy season rainfall is fairly spread across the year based on 10 years of historical data. December is the wettest month on average (about 184 mm), while July is the driest (about 14 mm).
What's the best time of year to visit Seattle?
The best time to visit Seattle is typically July to August, when daytime highs average a comfortable 24.7°C (76°F). Rainfall during this window averages around 20 mm, one of the lighter, more comfortable stretches of the year. This is based on 10 years of historical weather data.
Is Seattle's air quality safe right now?
As of the latest reading, Seattle's air quality index (AQI) is 27, rated "Good", based on the nearest monitoring station. Air quality is considered satisfactory, with little to no health risk.