Seattle weather live forecast

Today's maximum temperature in Seattle is expected to be 23°C. Select a day from the live weather forecast for Seattle, Washington State, USA for more weather parameters.

Thursday
17th Sep
23

14

12

5
Friday
18th Sep
21

13

10

5
Saturday
19th Sep
21

12

9

4
Sunday
20th Sep
21

12

9

5
Monday
21st Sep
20

12

7

2

5-day weather forecast updated at 04:00 on Friday 18th September 2026 GMT

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The 5-day weather forecast for Washington State (Seattle) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Seattle weather forecast by day

Below are the detailed weather forecasts for Seattle for the next 5 days.

Seattle weather for Thursday 17th September 2026

Expect clear skies in Seattle, Washington State with a maximum temperature of 23°C, maximum UV of 5 (Moderate) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 3 kph from the north-west.

23
°C maximum temperature
14
°C minimum temperature
clear skies
12
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
23
°C wind chill
3
kph wind from NW

Seattle weather for Friday 18th September 2026

Expect scattered clouds in Seattle, Washington State with a maximum temperature of 21°C, maximum UV of 5 (Moderate) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 4 kph from the south.

21
°C maximum temperature
13
°C minimum temperature
scattered clouds
10
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
4
kph wind from S

Seattle weather for Saturday 19th September 2026

Expect scattered clouds in Seattle, Washington State with a maximum temperature of 21°C, maximum UV of 4 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 2 kph from the north.

21
°C maximum temperature
12
°C minimum temperature
scattered clouds
9
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
21
°C wind chill
2
kph wind from N

Seattle weather for Sunday 20th September 2026

Expect scattered clouds in Seattle, Washington State with a maximum temperature of 21°C, maximum UV of 5 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 4 kph from the north.

21
°C maximum temperature
12
°C minimum temperature
scattered clouds
9
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
21
°C wind chill
4
kph wind from N

Seattle weather for Monday 21st September 2026

Expect broken clouds in Seattle, Washington State with a maximum temperature of 20°C, maximum UV of 2 (Low) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 2 kph from the south-west.