Hourly Weather Forecast - Mount Vernon, WA

12 AM
42°F
90%
12mph
SSE
Light Rain
Humidity
94%
Feels like
35°F
Dew Point
40°F
1 AM
42°F
90%
11mph
SSE
Light Rain
Humidity
94%
Feels like
35°F
Dew Point
40°F
2 AM
42°F
80%
11mph
SSE
80% Chance Rain Showers
Humidity
94%
Feels like
35°F
Dew Point
40°F
3 AM
41°F
70%
11mph
SSE
70% Chance Rain Showers
Humidity
95%
Feels like
35°F
Dew Point
40°F
4 AM
41°F
70%
11mph
SSE
70% Chance Rain Showers
Humidity
94%
Feels like
35°F
Dew Point
40°F
5 AM
41°F
80%
10mph
SSE
80% Chance Rain Showers
Humidity
96%
Feels like
35°F
Dew Point
40°F
6 AM
41°F
80%
9mph
SSE
80% Chance Rain Showers
Humidity
96%
Feels like
36°F
Dew Point
40°F
7 AM
41°F
80%
9mph
SSE
80% Chance Rain Showers
Humidity
95%
Feels like
36°F
Dew Point
40°F
7:59 AM
8 AM
42°F
70%
8mph
SSE
70% Chance Rain Showers
Humidity
95%
Feels like
36°F
Dew Point
40°F
9 AM
42°F
70%
8mph
SSE
70% Chance Rain Showers
Humidity
96%
Feels like
36°F
Dew Point
40°F
10 AM
42°F
70%
8mph
SSE
70% Chance Rain Showers
Humidity
95%
Feels like
37°F
Dew Point
41°F
11 AM
42°F
60%
8mph
SSE
60% Chance Rain Showers
Humidity
94%
Feels like
38°F
Dew Point
41°F
12 PM
43°F
60%
8mph
SSE
60% Chance Rain Showers
Humidity
92%
Feels like
38°F
Dew Point
41°F
1 PM
43°F
60%
8mph
SSE
60% Chance Rain Showers
Humidity
89%
Feels like
39°F
Dew Point
40°F

Rainfall and Snowfall Totals Through Thursday

Flooding Rain, Heavy Snow and Winds Slam Northwest, North-Central U.S.

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

Thursday's Weather Outlook

Thursday'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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