Hourly Weather Forecast - Port Arthur, WA

12 AM
42°F
50%
11mph
SSE
50% Chance Rain Showers
Humidity
92%
Feels like
36°F
Dew Point
40°F
1 AM
43°F
50%
11mph
SSE
50% Chance Rain Showers
Humidity
91%
Feels like
37°F
Dew Point
40°F
2 AM
43°F
70%
10mph
SSE
70% Chance Rain Showers
Humidity
91%
Feels like
37°F
Dew Point
40°F
3 AM
43°F
70%
10mph
SSE
70% Chance Rain Showers
Humidity
90%
Feels like
37°F
Dew Point
40°F
4 AM
43°F
70%
10mph
S
70% Chance of Light Rain
Humidity
90%
Feels like
38°F
Dew Point
41°F
5 AM
44°F
70%
10mph
SSE
70% Chance of Light Rain
Humidity
90%
Feels like
38°F
Dew Point
41°F
6 AM
44°F
60%
11mph
SSE
60% Chance of Light Rain
Humidity
90%
Feels like
38°F
Dew Point
41°F
7 AM
44°F
50%
11mph
SSE
50% Chance of Light Rain
Humidity
89%
Feels like
38°F
Dew Point
41°F
7:59 AM
8 AM
44°F
40%
11mph
SSE
40% Chance of Light Rain
Humidity
89%
Feels like
38°F
Dew Point
41°F
9 AM
44°F
30%
12mph
S
30% Chance of Light Rain
Humidity
87%
Feels like
39°F
Dew Point
41°F
10 AM
45°F
30%
12mph
S
30% Chance of Light Rain
Humidity
85%
Feels like
39°F
Dew Point
41°F
11 AM
46°F
30%
13mph
S
30% Chance of Light Rain
Humidity
82%
Feels like
40°F
Dew Point
41°F
12 PM
47°F
30%
13mph
S
30% Chance of Light Rain
Humidity
79%
Feels like
41°F
Dew Point
41°F
1 PM
47°F
30%
13mph
S
30% Chance of Light Rain
Humidity
78%
Feels like
42°F
Dew Point
41°F

Rainfall and Snowfall Totals Through Wednesday

Heavy Rain, Snow, and Winds Wallop Northwest

The atmospheric river this week continues to hit the Pacific Northwest with heavy rain, snow, and high winds.

Wednesday's Weather Outlook

Wednesday'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

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