Hourly Weather Forecast - SeaTac, WA

9 AM
43°F
90%
9mph
SSE
Light Rain
Humidity
78%
Feels like
38°F
Dew Point
37°F
10 AM
43°F
90%
9mph
SE
Light Rain
Humidity
79%
Feels like
38°F
Dew Point
37°F
11 AM
44°F
90%
9mph
SE
Light Rain
Humidity
80%
Feels like
39°F
Dew Point
38°F
12 PM
45°F
70%
10mph
SSE
70% Chance of Light Rain
Humidity
81%
Feels like
39°F
Dew Point
39°F
1 PM
46°F
60%
12mph
S
60% Chance of Light Rain
Humidity
82%
Feels like
41°F
Dew Point
41°F
2 PM
48°F
50%
14mph
S
50% Chance of Rain
Humidity
84%
Feels like
42°F
Dew Point
43°F
3 PM
49°F
50%
16mph
SSW
50% Chance of Rain
Humidity
87%
Feels like
44°F
Dew Point
46°F
4 PM
50°F
50%
17mph
SSW
50% Chance Rain Showers
Humidity
86%
Feels like
50°F
Dew Point
46°F
4:19 PM
5 PM
50°F
50%
18mph
SW
50% Chance Rain Showers
Humidity
87%
Feels like
50°F
Dew Point
47°F
6 PM
50°F
50%
17mph
SW
50% Chance of Light Rain
Humidity
86%
Feels like
44°F
Dew Point
46°F
7 PM
49°F
40%
17mph
SW
40% Chance of Light Rain
Humidity
87%
Feels like
43°F
Dew Point
45°F
8 PM
48°F
40%
17mph
SW
40% Chance of Light Rain
Humidity
88%
Feels like
41°F
Dew Point
44°F
9 PM
47°F
30%
17mph
SW
30% Chance of Light Rain
Humidity
85%
Feels like
40°F
Dew Point
42°F
10 PM
45°F
20%
17mph
SW
Mostly Cloudy
Humidity
83%
Feels like
38°F
Dew Point
40°F
11 PM
44°F
20%
16mph
SW
Mostly Cloudy
Humidity
83%
Feels like
36°F
Dew Point
39°F

Forecast Peak Wind Gusts Today

High Winds, Rain, and Snow Cross the Country

A clipper moving over the Great Lakes brings rain, snow, and high winds through the Atlantic Coastline.

Rainfall and Snowfall Totals Through Friday

Atmospheric River Symptoms Repeat in the Northwest

Thursday's Weather Outlook

Today's Weather Outlook

Flu Update Valid For Week Ending December 6, 2025

Weekly Flu Update: Flu Exceeds Annual Baseline

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

How to Measure Snow via NWS

How To Measure Snow

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