Mount Vernon, WA Weather Forecast
Local 7-day forecast
Patchy Fog then Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Mount Vernon, WA in one place.
Patchy fog before 10am. Sunny. High near 68, with temperatures falling to around 66 in the afternoon. Northwest wind 0 to 3 mph.
Local Weather Overview
This forecast page for Mount Vernon, WA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Oct 15, 2026 11:04 AM PDT.
The active forecast window currently covers Oct 15 to Oct 21, 2026 for Mount Vernon, WA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 15 to Oct 21, 2026
- Latest sync
- Oct 15, 2026 11:04 AM PDT
- Forecast office
- SEW
- Source
- NOAA / NWS
Daily Outlook
This Week in Mount Vernon
Friday looks like the warmest upcoming period in Mount Vernon at 71 degrees F.
Saturday Night is the coolest period ahead with temperatures near 38 degrees F.
The strongest winds are forecast for Saturday at about 3 to 9 mph SW.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 15, 2026 11:04 AM PDT
- Coverage
- 8 days
- Time zone
- America/Los_Angeles
- Forecast office
- SEW
- Radar station
- KATX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 46. North wind around 2 mph.
Mostly sunny. High near 71, with temperatures falling to around 68 in the afternoon. South wind around 2 mph.
Rain after 11pm. Mostly cloudy, with a low around 52. South wind 1 to 5 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
Rain before 5pm. Partly sunny, with a high near 60. Southwest wind 3 to 9 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
Partly cloudy, with a low around 38.
Partly sunny, with a high near 57.
Mostly cloudy, with a low around 41.
A slight chance of rain after 11am. Mostly cloudy, with a high near 57.
A slight chance of rain before 11pm. Mostly cloudy, with a low around 40.
Mostly sunny, with a high near 58.
Partly cloudy, with a low around 38.
A slight chance of rain after 5pm. Partly sunny, with a high near 59.
A chance of rain. Mostly cloudy, with a low around 41.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Oct 15
|
Patchy Fog then Sunny
|
68°F |
0 to 3 mph
NW
|
|
Tonight
Oct 15
|
Mostly Clear
|
46°F |
2 mph
N
|
|
Friday
Oct 16
|
Mostly Sunny
|
71°F |
2 mph
S
|
|
Friday Night
Oct 16
|
Light Rain
|
52°F |
1 to 5 mph
S
|
|
Saturday
Oct 17
|
Light Rain
|
60°F |
3 to 9 mph
SW
|
|
Saturday Night
Oct 17
|
Partly Cloudy
|
38°F |
3 mph
SE
|
|
Sunday
Oct 18
|
Partly Sunny
|
57°F |
0 to 5 mph
N
|
|
Sunday Night
Oct 18
|
Mostly Cloudy
|
41°F |
0 to 5 mph
NNW
|
|
Monday
Oct 19
|
Slight Chance Light Rain
|
57°F |
0 to 3 mph
S
|
|
Monday Night
Oct 19
|
Slight Chance Light Rain then Mostly Cloudy
|
40°F |
2 mph
WNW
|
|
Tuesday
Oct 20
|
Mostly Sunny
|
58°F |
0 to 3 mph
NW
|
|
Tuesday Night
Oct 20
|
Partly Cloudy
|
38°F |
0 to 3 mph
N
|
|
Wednesday
Oct 21
|
Partly Sunny then Slight Chance Light Rain
|
59°F |
2 mph
WNW
|
|
Wednesday Night
Oct 21
|
Chance Light Rain
|
41°F |
2 mph
SSE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Mount Vernon.
