Today
During the day mostly clear, up to +70°, at night around +54°. Light wind, up to 4 mph. The day promises to be dry.
Weather in SeaTac
United States · Washington · 47.4485, -122.2922
Today Now 4:35 PM
+70° Mostly clear
Hourly forecast
Today10/15
Temperature°F
Cloudiness
Precipitation
Windmph
Wind gusts
Humidity
PressureinHg
Dew point°F
Visibilitymi
UV index
Forecast in words
Tomorrow
Tomorrow high +73° and partly cloudy, nighttime low +50°, about 4° warmer.
Week
Seven days ahead fall within +43°…+73°. Weekly maximum — +73° (Fri). Coldest night — Tue, around +43°. Rain on Sat, Thu. Second half of the week is cooler.
Week vs norm
- Today 10/15 +70° +10° usually +60°
- Tomorrow 10/16 +73° +14° usually +59°
- Sat 10/17 +61° +2° usually +59°
- Sun 10/18 +57° −1° usually +59°
- Mon 10/19 +57° −1° usually +58°
- Tue 10/20 +59° +1° usually +58°
- Wed 10/21 +63° +5° usually +58°
- Thu 10/22 +52° −5° usually +57°
Difference between forecast daytime high and the 1991–2020 norm for this date.
This day, October 15
Today is warmer than usual for this date.
- Heat record +75° 2022
- Cold record +33° 1992
- Most precipitation 0.7 in 2016
- Strongest gust 47 mph 2016
Records for this calendar date, 1991-2024, ERA5 reanalysis.
Climate in SeaTac
Today is about 10° warmer than usual for October.
| Month | Daytime / Nighttime | Average | Precipitation in |
|---|---|---|---|
| Jan | +44° / +36° | +39° | 6.9 |
| Feb | +46° / +36° | +40° | 4.9 |
| Mar | +51° / +39° | +44° | 5.3 |
| Apr | +56° / +42° | +48° | 4.1 |
| May | +64° / +48° | +55° | 2.8 |
| Jun | +69° / +53° | +60° | 2.1 |
| Jul | +77° / +58° | +66° | 0.8 |
| Aug | +77° / +59° | +67° | 1.1 |
| Sep | +71° / +54° | +61° | 2.3 |
| Oct | +59° / +47° | +52° | 4.9 |
| Nov | +49° / +40° | +44° | 7.5 |
| Dec | +44° / +36° | +39° | 7.4 |
Climatic normals for 1991–2025 years from ERA5-Land reanalysis.
Astronomical data
Sunrise / sunset
7:28 AM | 6:20 PM
Moon
1:14 PM | 8:49 PM
Moon phase
Waxing crescent 24%
Next solar eclipse
Calculating for this city…