Local weather forecast

Weather in Mount Vernon, WA

Updated 2026-09-26 08:00 local time · ZIP codes 98273, 98274

Patchy rain nearby
Now48°F

Patchy rain nearby

High / Low59° / 47°
Rain chance43%
Wind6 mph
Weather alerts

Active alerts

1
Small Craft Advisory issued September 25 at 9:58PM PDT until September 26 at 5:00AM PDT by NWS Seattle WA

* WHAT...Southwest winds 20 to 30 kt. * WHERE...Northern Inland Waters Including The San Juan Islands. * WHEN...Until 5 AM PDT Saturday. * IMPACTS...Conditions will be hazardous to small craft.

Safety instructions

A Small Craft Advisory means that wind speeds of 21 to 33 knots and/or seas 10 feet or higher are expected to produce hazardous wave conditions to small craft. Inexperienced mariners, especially those operating smaller vessels should avoid navigating in these conditions.

Hourly

Next hours

NowPatchy rain nearby48°24% rain
9 AMPatchy rain nearby50°20% rain
10 AMPatchy rain nearby53°18% rain
11 AMPatchy rain nearby56°17% rain
12 PMSunny58°4% rain
1 PMSunny59°3% rain
2 PMOvercast58°14% rain
3 PMOvercast57°14% rain
4 PMOvercast56°15% rain
5 PMOvercast55°17% rain
6 PMOvercast54°20% rain
7 PMOvercast52°25% rain
Forecast

3-day weather forecast

Today2026-09-26
Patchy rain nearby
59° 47°Patchy rain nearby
Rain 43%Gust 8 mph
Tomorrow2026-09-27
Overcast
57° 47°Overcast
Rain 11%Gust 9 mph
Monday2026-09-28
Overcast
62° 47°Overcast
Rain 14%Gust 6 mph
Conditions

Weather details

Feels like46°F
Humidity90%
Pressure30.17 inHg
Visibility6 mi
Wind6 mph SSE
Wind gusts9 mph
Precipitation0.00 in
UV index0
Daylight

Sunrise, sunset and moon

Sunrise07:01 AM
Sunset06:59 PM
Moonrise06:44 PM
Moon phaseFull Moon
Next 24 hours

Key weather changes ahead

Warmest hour1 PM · 59°F
Coolest hour7 AM · 47°F
Highest rain chance9 PM · 28%
Strongest gusts2 PM · 19 mph
Practical guide

Weather insights for today

Umbrella not essential

Rain chance stays relatively low over the next 12 hours (up to 25%).

A jacket or sweater is a good idea

It feels like 46°F with winds near 6 mph.

Best window: 1 PM

59°F, 3% rain chance and 5 mph wind.

Driving conditions look generally normal

Visibility is around 6 mi; gusts may reach 19 mph.

Good conditions for an easy run

Current temperature is 48°F, wind 6 mph, rain chance up to 25%.

Low UV protection needs

UV index is 0.

Local weather characteristics in Mount Vernon

Washington has a mild, wetter marine climate west of the Cascades and a much drier interior climate east of the mountains. Terrain creates strong local rain, snow and temperature differences.

Mount Vernon is part of the West weather region. The forecast point is near 48.42°N latitude and 122.33°W longitude. Local temperature, wind and precipitation can still differ from nearby places, especially where terrain, coastlines or urban development create small-scale weather changes.

Mount Vernon weather today

Patchy rain nearby and 48°F in Mount Vernon, WA. Today's high is 59°F with a 43% rain chance. Winds are around 6 mph with gusts near 9 mph. Relative humidity is 90%, pressure is 30.17 inHg, and visibility is about 6 miles.

Tonight and tomorrow in Mount Vernon

Sunrise is at 07:01 AM and sunset is at 06:59 PM. Tomorrow's forecast calls for Overcast with a high near 57°F and a low near 47°F. The maximum rain chance is 11%.

Nearby

Weather near Mount Vernon

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