Weather

Seattle Weather Today

Live rain radar, current conditions, an hour-by-hour outlook and a seven-day forecast for Seattle, with original writing about the city's climate from The Daily Seattle.

Today's briefing

Good morning, Seattle. We're starting the day mild at 15 degrees with mostly sunny skies and just a 2 per cent chance of rain, so you can leave the brolly at home. We'll climb to a pleasant 21 degrees by this afternoon with a gentle 6 kilometre-per-hour breeze, though do keep an eye on that UV index of 7 if you'll be out and about. Grab a light layer like a fleece or cardigan since we're sitting at 15 degrees right now, and you'll be comfortable shedding it as the day warms up. Looking ahead to the weekend, Saturday stays mild at 20 degrees with a 6 per cent rain chance, whilst Sunday looks even better at 23 degrees with barely any rain expected.

Partly cloudy · 20° in Seattle

20°

Partly cloudy · feels like 21°

Today: 20° / 14°
Humidity: 59%
Wind: 8 km/h W
UV index: 6 · Moderate
Sunrise: 5:17 am
Sunset: 9:09 pm
Updated: 4:01 pm

Next 24 hours

Now
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5pm
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8pm
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9pm
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Live rain radar

Drag to pan, scroll the page over it

Animated rain radar via RainViewer (Bureau of Meteorology sources). Full BOM radar loop.

Seven-day forecast

Thu
Overcast
20° 14°
Rain 2%
Fri
Overcast
21° 12°
Rain 1%
Sat
Overcast
24° 11°
Rain 1%
Sun
Overcast
28° 10°
Rain 0%
Mon
Overcast
29° 11°
Rain 1%
Tue
Overcast
19° 14°
Rain 13%
Wed
Overcast
26° 11°
Rain 10%

Air quality

Good

US AQI

PM2.5: 3
PM10: 4
Ozone: 76

Air quality by Open-Meteo (CAMS), in µg/m³.

Sun and moon

Sunrise: 5:17 am
Sunset: 9:09 pm
Daylight: 15h 52m

Waning gibbous

83% lit

From the weather desk

Seattle weather, explained

How to read the Seattle forecast

A good forecast is really three views at once. The current panel tells you what it feels like outside right now, which is what matters before you head out the door. The hourly strip is for planning the next part of your day: when the rain band arrives, when the wind picks up, when it is warm enough to walk. The seven-day outlook is for the week ahead, and it is most reliable in the first three or four days. Read it from the top down and you will almost always have what you need for Seattle.

What the UV index actually means

The UV index rates the strength of the sun's ultraviolet radiation on a simple scale. Below 3 is low and you can be outside safely without protection. From 3 to 7 is moderate to high, the point at which sunburn becomes likely within an hour, so a hat and sunscreen earn their keep. Above 8 is very high to extreme, and skin can burn in minutes around the middle of the day. The index peaks at solar noon, not at the hottest part of the afternoon, so the safest habit is to check the number rather than judge by the temperature.

Why the overnight low matters as much as the high

Daytime maximums get the headlines, but the overnight minimum shapes how the day actually feels. A cold night means a slow, crisp start and, on clear evenings, the chance of fog or frost before dawn. A mild night means the warmth carries over and the morning is comfortable from the outset. Clear skies let heat escape and push the low down; cloud cover traps it and keeps the night warmer. That is why two days with the same maximum can feel completely different depending on the night that came before.

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Weather data by Open-Meteo. The Daily Seattle is independent and not affiliated with any government weather agency.

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