Hourly Weather Forecast - SeaTac, WA

12 AM
43°F
30%
15mph
SW
30% Chance Rain Showers
Humidity
84%
Feels like
36°F
Dew Point
38°F
1 AM
42°F
20%
14mph
SSW
Partly Cloudy
Humidity
84%
Feels like
35°F
Dew Point
38°F
2 AM
41°F
20%
13mph
SSW
Partly Cloudy
Humidity
85%
Feels like
34°F
Dew Point
37°F
3 AM
41°F
10%
12mph
SSW
Partly Cloudy
Humidity
86%
Feels like
34°F
Dew Point
37°F
4 AM
40°F
10%
12mph
SSW
Partly Cloudy
Humidity
86%
Feels like
33°F
Dew Point
37°F
5 AM
40°F
10%
11mph
SSW
Partly Cloudy
Humidity
87%
Feels like
33°F
Dew Point
36°F
6 AM
39°F
20%
11mph
SSW
Partly Cloudy
Humidity
86%
Feels like
33°F
Dew Point
36°F
7 AM
39°F
30%
11mph
S
30% Chance Rain Showers
Humidity
87%
Feels like
33°F
Dew Point
36°F
7:52 AM
8 AM
40°F
30%
11mph
SSW
30% Chance Rain Showers
Humidity
86%
Feels like
33°F
Dew Point
36°F
9 AM
41°F
30%
13mph
SSW
30% Chance Rain Showers
Humidity
84%
Feels like
33°F
Dew Point
36°F
10 AM
42°F
40%
14mph
SSW
40% Chance Rain Showers
Humidity
83%
Feels like
34°F
Dew Point
37°F
11 AM
42°F
50%
14mph
SSW
50% Chance Rain Showers
Humidity
82%
Feels like
35°F
Dew Point
37°F
12 PM
43°F
50%
15mph
SSW
50% Chance of Light Rain
Humidity
81%
Feels like
36°F
Dew Point
38°F
1 PM
43°F
50%
15mph
SSW
50% Chance of Light Rain
Humidity
81%
Feels like
36°F
Dew Point
38°F
2 PM
43°F
50%
15mph
SSW
50% Chance of Light Rain
Humidity
82%
Feels like
36°F
Dew Point
38°F
3 PM
42°F
40%
14mph
SSW
40% Chance of Light Rain
Humidity
83%
Feels like
35°F
Dew Point
38°F
4 PM
42°F
40%
14mph
SSW
40% Chance of Light Rain
Humidity
84%
Feels like
34°F
Dew Point
37°F
4:19 PM
5 PM
41°F
40%
14mph
SSW
40% Chance Rain Showers
Humidity
85%
Feels like
34°F
Dew Point
37°F
6 PM
41°F
40%
14mph
SSW
40% Chance Rain Showers
Humidity
86%
Feels like
33°F
Dew Point
37°F
7 PM
41°F
40%
14mph
SSW
40% Chance Rain Showers
Humidity
87%
Feels like
33°F
Dew Point
37°F
8 PM
40°F
40%
13mph
SSW
40% Chance Rain Showers
Humidity
88%
Feels like
33°F
Dew Point
37°F
9 PM
40°F
50%
13mph
SSW
50% Chance Rain Showers
Humidity
89%
Feels like
33°F
Dew Point
37°F
10 PM
40°F
50%
13mph
SSW
50% Chance of Light Rain
Humidity
90%
Feels like
33°F
Dew Point
38°F
11 PM
40°F
60%
13mph
SSW
60% Chance of Light Rain
Humidity
90%
Feels like
33°F
Dew Point
38°F

Rainfall and Snowfall Totals Through Thursday

Pineapple Express Slams Northwestern U.S.

The atmospheric river this week will keep buffeting the Pacific Northwest with heavy rain, snow, and high winds.

Wednesday's Weather Outlook

Today's Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A person standing in a snowy forest with their back to the camera. They are bundled up in a white hat and a brown jacket. (Image by StockSnap from Pixabay)

Common Cold Weather Illnesses

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

Cold Air Damming - Cause And Effects

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide