Weather in Saint Helens, WA
Saint Helens, Saturday, 31 October, 15:45
Partly cloudy. Feels like 50°. High 52°, low 34°.
Monthly outlook for Saint Helens, WA: average high 53.7°, average low 41.5°. That is 1.1° above the climate normal for October. Precipitation is expected on 10 days (about 3.3 inches), against a normal of 10 days and 4.8 inches. The warmest day looks like 14 November (60.2°), the coolest 31 October (33.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 31 October – 9 November | 54.8° | 52.3° | +1.4° |
| 10 November – 19 November | 52° | 49.6° | +1.4° |
| 20 November – 29 November | at normal | 45.7° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Sightly (9 mi).
0
Saint Helens, Sunday, 1 November
Clear. High 54°, low 40°.
0
Saint Helens, Monday, 2 November
Overcast. High 54°, low 37°.
0.01
Saint Helens, Tuesday, 3 November
Light rain. High 57°, low 44°.
0.05Saint Helens, Wednesday, 4 November
Light rain. High 58°, low 38°.
0.1Saint Helens, Thursday, 5 November
Light rain. High 55°, low 43°.
0.32Saint Helens, Friday, 6 November
Rain. High 52°, low 42°.
0Saint Helens, Saturday, 7 November
Overcast. High 58°, low 42°.
0.39Saint Helens, Sunday, 8 November
Rain. High 51°, low 42°.
0Saint Helens, Monday, 9 November
Overcast. High 56°, low 41°.
0.38Saint Helens, Tuesday, 10 November
Rain. High 58°, low 47°.
0.99Saint Helens, Wednesday, 11 November
Rain. High 49°, low 44°.
0.09Saint Helens, Thursday, 12 November
Light rain. High 47°, low 41°.
0.07Saint Helens, Friday, 13 November
Light rain. High 47°, low 39°.
0.41Saint Helens, Saturday, 14 November
Rain. High 60°, low 46°.
0.47Saint Helens, Sunday, 15 November
Rain. High 51°, low 44°.
0.28Saint Helens, Monday, 16 November
Climate normal for this date — 60-year average.
0.35Saint Helens, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.24Saint Helens, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.41Saint Helens, Thursday, 19 November
Climate normal for this date — 60-year average.
0.35Saint Helens, Friday, 20 November
Climate normal for this date — 60-year average.
0.31Saint Helens, Saturday, 21 November
Climate normal for this date — 60-year average.
0.33Saint Helens, Sunday, 22 November
Climate normal for this date — 60-year average.
0.39Saint Helens, Monday, 23 November
Climate normal for this date — 60-year average.
0.44Saint Helens, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.44Saint Helens, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.23Saint Helens, Thursday, 26 November
Climate normal for this date — 60-year average.
0.33Saint Helens, Friday, 27 November
Climate normal for this date — 60-year average.
0.27Saint Helens, Saturday, 28 November
Climate normal for this date — 60-year average.
0.29Saint Helens, Sunday, 29 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 Saint Helens, 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 Saint Helens, 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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