Hourly Weather Forecast - SeaTac, WA

12 AM
51°F
30%
9mph
SSW
30% Chance of Light Rain
Humidity
91%
Feels like
51°F
Dew Point
48°F
1 AM
51°F
30%
9mph
SSW
30% Chance of Light Rain
Humidity
91%
Feels like
51°F
Dew Point
48°F
2 AM
50°F
30%
9mph
SSW
30% Chance of Light Rain
Humidity
91%
Feels like
50°F
Dew Point
47°F
3 AM
50°F
30%
9mph
S
30% Chance of Light Rain
Humidity
91%
Feels like
46°F
Dew Point
47°F
4 AM
49°F
30%
9mph
S
30% Chance of Light Rain
Humidity
91%
Feels like
46°F
Dew Point
47°F
5 AM
49°F
20%
8mph
S
Mostly Cloudy
Humidity
91%
Feels like
45°F
Dew Point
46°F
6 AM
48°F
20%
8mph
S
Mostly Cloudy
Humidity
91%
Feels like
45°F
Dew Point
46°F
7 AM
48°F
20%
8mph
S
Mostly Cloudy
Humidity
92%
Feels like
44°F
Dew Point
46°F
7:48 AM
8 AM
48°F
20%
8mph
S
Mostly Cloudy
Humidity
91%
Feels like
45°F
Dew Point
46°F
9 AM
49°F
20%
7mph
S
Mostly Cloudy
Humidity
90%
Feels like
46°F
Dew Point
46°F
10 AM
50°F
10%
7mph
S
Partly Cloudy
Humidity
88%
Feels like
50°F
Dew Point
47°F
11 AM
52°F
10%
7mph
S
Partly Cloudy
Humidity
85%
Feels like
52°F
Dew Point
48°F
12 PM
53°F
10%
7mph
S
Partly Cloudy
Humidity
83%
Feels like
53°F
Dew Point
48°F
1 PM
54°F
10%
7mph
S
Partly Cloudy
Humidity
83%
Feels like
54°F
Dew Point
49°F
2 PM
53°F
20%
7mph
SSW
Partly Cloudy
Humidity
83%
Feels like
53°F
Dew Point
48°F
3 PM
52°F
30%
7mph
SSW
30% Chance Rain Showers
Humidity
85%
Feels like
52°F
Dew Point
48°F
4 PM
51°F
30%
8mph
SSW
30% Chance Rain Showers
Humidity
87%
Feels like
51°F
Dew Point
48°F
4:18 PM
5 PM
51°F
30%
8mph
S
30% Chance of Light Rain
Humidity
88%
Feels like
51°F
Dew Point
47°F
6 PM
50°F
40%
9mph
S
40% Chance of Light Rain
Humidity
88%
Feels like
50°F
Dew Point
47°F
7 PM
50°F
40%
9mph
S
40% Chance of Light Rain
Humidity
87%
Feels like
46°F
Dew Point
46°F
8 PM
50°F
40%
10mph
S
40% Chance of Rain
Humidity
86%
Feels like
46°F
Dew Point
46°F
9 PM
50°F
40%
10mph
S
40% Chance of Rain
Humidity
85%
Feels like
46°F
Dew Point
46°F
10 PM
50°F
40%
10mph
S
40% Chance of Rain
Humidity
84%
Feels like
46°F
Dew Point
45°F
11 PM
50°F
40%
11mph
S
40% Chance of Light Rain
Humidity
82%
Feels like
50°F
Dew Point
45°F

Snow and ice forecast through Thursday A.M.

Snow Barrels Across the Northern U.S.

Low pressure will produce a swath of snow from Minnesota to Maine into Thursday.

Rainfall Forecast for Northwest through Thursday

Heavy Rain, Flooding Soaks The Northwest

Wednesday's Weather Outlook

Wednesday's Weather Outlook

Weekly Drought Map for December 4, 2025

Active Week of Weather Leads to Mixed Drought Results

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

People skating on a frozen pond on a clear day. (Image by Q K from Pixabay)

Safety Tips For Icy Surfaces

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide