Hourly Weather Forecast - SeaTac, WA

12 AM
41°F
90%
10mph
S
Light Rain
Humidity
93%
Feels like
35°F
Dew Point
39°F
1 AM
40°F
90%
10mph
S
Rain Showers
Humidity
95%
Feels like
34°F
Dew Point
39°F
2 AM
39°F
80%
10mph
S
80% Chance Rain Showers
Humidity
96%
Feels like
33°F
Dew Point
38°F
3 AM
39°F
80%
10mph
S
80% Chance Rain Showers
Humidity
96%
Feels like
33°F
Dew Point
38°F
4 AM
39°F
80%
10mph
S
80% Chance Rain Showers
Humidity
94%
Feels like
33°F
Dew Point
38°F
5 AM
40°F
80%
11mph
S
80% Chance Rain Showers
Humidity
92%
Feels like
33°F
Dew Point
37°F
6 AM
40°F
80%
11mph
S
80% Chance Rain Showers
Humidity
91%
Feels like
33°F
Dew Point
37°F
7 AM
40°F
80%
11mph
S
80% Chance Rain Showers
Humidity
90%
Feels like
33°F
Dew Point
37°F
7:54 AM
8 AM
41°F
80%
11mph
S
80% Chance Rain Showers
Humidity
88%
Feels like
34°F
Dew Point
37°F
9 AM
42°F
80%
12mph
S
80% Chance Rain Showers
Humidity
86%
Feels like
35°F
Dew Point
38°F
10 AM
43°F
80%
12mph
S
80% Chance Rain Showers
Humidity
84%
Feels like
36°F
Dew Point
38°F
11 AM
44°F
80%
13mph
S
80% Chance Rain Showers
Humidity
83%
Feels like
38°F
Dew Point
39°F
12 PM
45°F
70%
13mph
S
70% Chance Rain Showers
Humidity
82%
Feels like
38°F
Dew Point
40°F
1 PM
45°F
80%
14mph
S
80% Chance of Light Rain
Humidity
82%
Feels like
39°F
Dew Point
40°F
2 PM
45°F
80%
13mph
S
80% Chance of Light Rain
Humidity
83%
Feels like
38°F
Dew Point
40°F
3 PM
44°F
90%
13mph
S
Light Rain
Humidity
85%
Feels like
37°F
Dew Point
40°F
4 PM
44°F
90%
12mph
S
Light Rain
Humidity
84%
Feels like
37°F
Dew Point
39°F
4:21 PM
5 PM
43°F
90%
11mph
S
Light Rain
Humidity
87%
Feels like
37°F
Dew Point
40°F
6 PM
44°F
80%
11mph
S
80% Chance of Light Rain
Humidity
85%
Feels like
38°F
Dew Point
39°F
7 PM
44°F
80%
11mph
S
80% Chance of Light Rain
Humidity
85%
Feels like
38°F
Dew Point
39°F
8 PM
44°F
80%
11mph
S
80% Chance of Light Rain
Humidity
86%
Feels like
37°F
Dew Point
39°F
9 PM
43°F
80%
12mph
S
80% Chance of Light Rain
Humidity
86%
Feels like
37°F
Dew Point
40°F
10 PM
43°F
80%
12mph
S
80% Chance of Light Rain
Humidity
86%
Feels like
37°F
Dew Point
40°F
11 PM
44°F
80%
13mph
S
80% Chance Rain Showers
Humidity
87%
Feels like
37°F
Dew Point
40°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

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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

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