Weather in Mount Vernon, WA
Mount Vernon, Thursday, 15 October, 11:33
Mostly clear. Feels like 54°. High 63°, low 49°.
Monthly outlook for Mount Vernon, WA: average high 54.9°, average low 41.9°. That is 0.2° below the climate normal for October. Precipitation is expected on 6 days (about 1.4 inches), against a normal of 8 days and 4.0 inches. The warmest day looks like 16 October (69.8°), the coolest 26 October (35.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 15 October – 24 October | 57.7° | 56.6° | +0.6° |
| 25 October – 3 November | 50.4° | 52.8° | -1.3° |
| 4 November – 13 November | at normal | 50.4° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Stanwood (12 mi).
0
Mount Vernon, Friday, 16 October
Partly cloudy. High 70°, low 53°.
0.15
Mount Vernon, Saturday, 17 October
Rain. High 59°, low 45°.
0
Mount Vernon, Sunday, 18 October
Overcast. High 56°, low 39°.
0.04Mount Vernon, Monday, 19 October
Light rain. High 58°, low 42°.
0Mount Vernon, Tuesday, 20 October
Mostly clear. High 56°, low 41°.
0
Mount Vernon, Wednesday, 21 October
Clear. High 60°, low 43°.
0.18Mount Vernon, Thursday, 22 October
Light rain. High 54°, low 45°.
0.06Mount Vernon, Friday, 23 October
Light rain. High 53°, low 43°.
0.39Mount Vernon, Saturday, 24 October
Rain. High 47°, low 42°.
0Mount Vernon, Sunday, 25 October
Clear. High 54°, low 37°.
0Mount Vernon, Monday, 26 October
Clear. High 52°, low 35°.
0Mount Vernon, Tuesday, 27 October
Overcast. High 53°, low 37°.
0.16Mount Vernon, Wednesday, 28 October
Light rain. High 48°, low 39°.
0.03Mount Vernon, Thursday, 29 October
Light rain. High 49°, low 38°.
0.39Mount Vernon, Friday, 30 October
Light rain. High 46°, low 42°.
0.34Mount Vernon, Saturday, 31 October
Climate normal for this date — 60-year average.
0.3Mount Vernon, Sunday, 1 November
Climate normal for this date — 60-year average.
0.26Mount Vernon, Monday, 2 November
Climate normal for this date — 60-year average.
0.34Mount Vernon, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.39Mount Vernon, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.23Mount Vernon, Thursday, 5 November
Climate normal for this date — 60-year average.
0.35Mount Vernon, Friday, 6 November
Climate normal for this date — 60-year average.
0.33Mount Vernon, Saturday, 7 November
Climate normal for this date — 60-year average.
0.28Mount Vernon, Sunday, 8 November
Climate normal for this date — 60-year average.
0.3Mount Vernon, Monday, 9 November
Climate normal for this date — 60-year average.
0.25
Mount Vernon, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.31Mount Vernon, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.33Mount Vernon, Thursday, 12 November
Climate normal for this date — 60-year average.
0.37Mount Vernon, Friday, 13 November
Climate normal for this date — 60-year average.
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Mount Vernon, WA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Mount Vernon, WA since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.
Sun and moon today
Weather history
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