Hourly Weather Forecast - SeaTac, WA

12 AM
53°F
70%
16mph
SSW
70% Chance of Light Rain
Humidity
95%
Feels like
53°F
Dew Point
52°F
1 AM
55°F
80%
18mph
SSW
80% Chance of Rain
Humidity
94%
Feels like
55°F
Dew Point
53°F
2 AM
55°F
90%
18mph
SSW
Rain
Humidity
94%
Feels like
55°F
Dew Point
53°F
3 AM
55°F
100%
19mph
SSW
Rain
Humidity
95%
Feels like
55°F
Dew Point
54°F
4 AM
55°F
100%
19mph
SSW
Rain
Humidity
96%
Feels like
55°F
Dew Point
54°F
5 AM
55°F
100%
18mph
SSW
Rain
Humidity
98%
Feels like
55°F
Dew Point
54°F
6 AM
55°F
100%
17mph
SSW
Rain
Humidity
98%
Feels like
55°F
Dew Point
54°F
7 AM
55°F
100%
17mph
SSW
Rain
Humidity
98%
Feels like
55°F
Dew Point
54°F
7:45 AM
8 AM
55°F
100%
17mph
SSW
Rain
Humidity
97%
Feels like
55°F
Dew Point
54°F
9 AM
55°F
100%
17mph
SSW
Rain
Humidity
96%
Feels like
55°F
Dew Point
54°F
10 AM
56°F
100%
17mph
SSW
Rain
Humidity
95%
Feels like
56°F
Dew Point
54°F
11 AM
56°F
90%
18mph
SSW
Rain
Humidity
94%
Feels like
56°F
Dew Point
54°F
12 PM
56°F
90%
18mph
SSW
Rain
Humidity
94%
Feels like
56°F
Dew Point
55°F
1 PM
57°F
90%
18mph
SSW
Rain
Humidity
93%
Feels like
57°F
Dew Point
55°F
2 PM
56°F
80%
18mph
SSW
80% Chance of Rain
Humidity
93%
Feels like
56°F
Dew Point
55°F
3 PM
56°F
80%
18mph
SSW
80% Chance of Rain
Humidity
93%
Feels like
56°F
Dew Point
54°F
4 PM
56°F
80%
18mph
SSW
80% Chance of Rain
Humidity
94%
Feels like
56°F
Dew Point
54°F
4:18 PM
5 PM
56°F
80%
18mph
SSW
80% Chance of Rain
Humidity
94%
Feels like
56°F
Dew Point
54°F
6 PM
56°F
80%
18mph
SSW
80% Chance of Rain
Humidity
93%
Feels like
56°F
Dew Point
54°F
7 PM
56°F
80%
18mph
SSW
80% Chance of Rain
Humidity
93%
Feels like
56°F
Dew Point
54°F
8 PM
56°F
70%
18mph
SSW
70% Chance of Rain
Humidity
93%
Feels like
56°F
Dew Point
54°F
9 PM
56°F
80%
18mph
SSW
80% Chance of Rain
Humidity
93%
Feels like
56°F
Dew Point
54°F
10 PM
56°F
100%
17mph
SSW
Rain
Humidity
93%
Feels like
56°F
Dew Point
54°F
11 PM
56°F
100%
17mph
SW
Light Rain
Humidity
93%
Feels like
56°F
Dew Point
54°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

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Traffic Cameras

Weather Cameras

Outdoor Sports Guide