Seattle, WA 14-Day Forecast
Washington, United States 🇺🇸
52°
Clear right now
Today: high 74°, low 51°
Updated 19 min ago
Seattle weather for the next 14 days
Thursday, September 17
Sunny High 76° Low 53°Precipitation
3%
· 0.0 in
Max wind
5 mph
Humidity
60%
UV index
5 - Moderate
Sunrise / sunset
06:49 AM / 07:18 PM
Friday, September 18
Sunny High 72° Low 53°Precipitation
5%
· 0.0 in
Max wind
6 mph
Humidity
67%
UV index
5 - Moderate
Sunrise / sunset
06:50 AM / 07:16 PM
Saturday, September 19
Sunny High 75° Low 52°Precipitation
8%
· 0.0 in
Max wind
6 mph
Humidity
69%
UV index
5 - Moderate
Sunrise / sunset
06:52 AM / 07:14 PM
Sunday, September 20
Sunny High 74° Low 53°Precipitation
6%
· 0.0 in
Max wind
8 mph
Humidity
61%
UV index
6 - High
Sunrise / sunset
06:53 AM / 07:11 PM
Monday, September 21
Sunny High 71° Low 55°Precipitation
7%
· 0.0 in
Max wind
9 mph
Humidity
60%
UV index
6 - High
Sunrise / sunset
06:54 AM / 07:09 PM
Tuesday, September 22
Sunny High 66° Low 51°Precipitation
6%
· 0.0 in
Max wind
7 mph
Humidity
61%
UV index
5 - Moderate
Sunrise / sunset
06:56 AM / 07:07 PM
Wednesday, September 23
Sunny High 74° Low 52°Precipitation
3%
· 0.0 in
Max wind
7 mph
Humidity
51%
UV index
6 - High
Sunrise / sunset
06:57 AM / 07:05 PM
Thursday, September 24
Sunny High 79° Low 56°Precipitation
4%
· 0.0 in
Max wind
7 mph
Humidity
59%
UV index
7 - High
Sunrise / sunset
06:58 AM / 07:03 PM
Friday, September 25
Partly Cloudy High 63° Low 51°Precipitation
52%
· 0.04 in
Max wind
7 mph
Humidity
72%
UV index
5 - Moderate
Sunrise / sunset
07:00 AM / 07:01 PM
Saturday, September 26
Partly Cloudy High 62° Low 48°Precipitation
10%
· 0.0 in
Max wind
6 mph
Humidity
59%
UV index
5 - Moderate
Sunrise / sunset
07:01 AM / 06:59 PM
Sunday, September 27
Sunny High 64° Low 47°Precipitation
7%
· 0.0 in
Max wind
3 mph
Humidity
60%
UV index
5 - Moderate
Sunrise / sunset
07:03 AM / 06:57 PM
Monday, September 28
Sunny High 66° Low 48°Precipitation
5%
· 0.0 in
Max wind
10 mph
Humidity
57%
UV index
5 - Moderate
Sunrise / sunset
07:04 AM / 06:55 PM
Tuesday, September 29
Overcast High 66° Low 49°Precipitation
13%
· 0.0 in
Max wind
7 mph
Humidity
56%
UV index
4 - Moderate
Sunrise / sunset
07:05 AM / 06:53 PM
Seattle 14-day outlook: the story
The warmest day of Seattle's 14-day outlook is Thursday, September 24 with a high near 79°F (26°C); the coolest night comes Sunday, September 27, dipping to 47°F (8°C). The trend points cooler: week two runs about 5°F below week one. Highs over the next two weeks average 72°F (22°C), about 3°F (2°C) above the typical September high of 69°F (20°C).
Precipitation is most likely on Friday 25; the wettest day looks like Friday, September 25 with about 0.04 in (1.0 mm) expected. For the weekend, expect Saturday 75°F (24°C) and sunny / Sunday 74°F (23°C) and sunny.
For typical conditions month by month, see the Seattle climate & average temperatures guide.
Seattle forecast questions
Will it rain in Seattle this week?
The forecast currently shows meaningful precipitation chances on 1 of the next 14 days, peaking around Friday, September 25.
What will be the warmest day in Seattle over the next 14 days?
Thursday, September 24, with a forecast high near 79°F (26°C).
How accurate is a 14-day forecast for Seattle?
Days 1-3 are highly reliable, days 4-7 capture the overall pattern well, and days 8-14 indicate trends rather than exact figures - check back as the date approaches; this page refreshes throughout the day.
Average temperatures in Seattle by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 47° | 37° | 18 | 7.3 in | 4.1 h/day | 84% |
| February | 47° | 36° | 15 | 4.9 in | 5.1 h/day | 82% |
| March | 52° | 39° | 15 | 4.3 in | 7.5 h/day | 80% |
| April | 57° | 42° | 14 | 3.3 in | 9.2 h/day | 77% |
| May | 64° | 49° | 10 | 2.1 in | 10.1 h/day | 74% |
| June | 70° | 54° | 8 | 2.0 in | 11.7 h/day | 70% |
| July | 76° | 58° | 3 | 0.6 in | 12.7 h/day | 66% |
| August | 77° | 59° | 5 | 1.1 in | 11.5 h/day | 68% |
| September | 69° | 55° | 10 | 2.5 in | 9.2 h/day | 76% |
| October | 59° | 48° | 14 | 5.0 in | 6.5 h/day | 82% |
| November | 50° | 41° | 18 | 6.9 in | 4.7 h/day | 83% |
| December | 45° | 37° | 19 | 7.4 in | 3.6 h/day | 84% |
14-day forecasts nearby