Weather in Mount Vernon, WA
Mount Vernon, Thursday, 15 October, 21:09
Partly cloudy. Feels like 48°. High 67°, low 49°.
Monthly outlook for Mount Vernon, WA: average high 56°, average low 44.2°. That is 0.4° above the climate normal for October. Precipitation is expected on 6 days (about 1.7 inches), against a normal of 8 days and 4.0 inches. The warmest day looks like 16 October (68.7°), the coolest 18 October (38.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 15 October – 24 October | 57.8° | 56.6° | +0.7° |
| 25 October – 3 November | 53° | 52.8° | +0.2° |
| 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
Mostly clear. High 69°, low 51°.
0.23
Mount Vernon, Saturday, 17 October
Rain. High 60°, low 45°.
0
Mount Vernon, Sunday, 18 October
Overcast. High 55°, low 39°.
0.01Mount Vernon, Monday, 19 October
Light rain. High 54°, low 42°.
0Mount Vernon, Tuesday, 20 October
Overcast. High 55°, low 40°.
0Mount Vernon, Wednesday, 21 October
Mostly clear. High 57°, low 40°.
0.12Mount Vernon, Thursday, 22 October
Light rain. High 54°, low 47°.
0.2Mount Vernon, Friday, 23 October
Light rain. High 52°, low 42°.
0Mount Vernon, Saturday, 24 October
Overcast. High 56°, low 39°.
0.03Mount Vernon, Sunday, 25 October
Light rain. High 53°, low 48°.
0Mount Vernon, Monday, 26 October
Overcast. High 55°, low 45°.
0.28Mount Vernon, Tuesday, 27 October
Rain. High 49°, low 45°.
0.32Mount Vernon, Wednesday, 28 October
Rain. High 53°, low 45°.
0Mount Vernon, Thursday, 29 October
Overcast. High 55°, low 44°.
0.46Mount Vernon, Friday, 30 October
Rain. High 52°, low 46°.
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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