Weather in Saint Helens, WA
Saint Helens, Friday, 13 November, 23:40
Overcast. Feels like 46°. High 49°, low 48°.
Monthly outlook for Saint Helens, WA: average high 49.5°, average low 40.5°. That is 1.3° above the climate normal for November. Precipitation is expected on 10 days (about 1.6 inches), against a normal of 10 days and 5.3 inches. The warmest day looks like 25 November (54.9°), the coolest 19 November (33.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 13 November – 22 November | 49.7° | 48.3° | +0.8° |
| 23 November – 2 December | 49.2° | 45.1° | +2.3° |
| 3 December – 12 December | at normal | 43.8° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Sightly (9 mi).
0.11
Saint Helens, Saturday, 14 November
Light rain. High 50°, low 44°.
0.31Saint Helens, Sunday, 15 November
Rain. High 53°, low 43°.
0.2Saint Helens, Monday, 16 November
Rain. High 50°, low 41°.
0Saint Helens, Tuesday, 17 November
Overcast. High 49°, low 40°.
0.06Saint Helens, Wednesday, 18 November
Light rain. High 49°, low 37°.
0
Saint Helens, Thursday, 19 November
Mostly clear. High 48°, low 34°.
0Saint Helens, Friday, 20 November
Mostly clear. High 48°, low 34°.
0Saint Helens, Saturday, 21 November
Overcast. High 51°, low 37°.
0Saint Helens, Sunday, 22 November
Overcast. High 49°, low 39°.
0.04Saint Helens, Monday, 23 November
Light rain. High 48°, low 43°.
0.19Saint Helens, Tuesday, 24 November
Rain. High 49°, low 45°.
0.02Saint Helens, Wednesday, 25 November
Light rain. High 55°, low 44°.
0.08Saint Helens, Thursday, 26 November
Light rain. High 49°, low 40°.
0.05Saint Helens, Friday, 27 November
Light rain. High 49°, low 40°.
0.24Saint Helens, Saturday, 28 November
Rain. High 45°, low 40°.
0.29Saint Helens, Sunday, 29 November
Climate normal for this date — 60-year average.
0.35Saint Helens, Monday, 30 November
Climate normal for this date — 60-year average.
0.4Saint Helens, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.46Saint Helens, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.39Saint Helens, Thursday, 3 December
Climate normal for this date — 60-year average.
0.35Saint Helens, Friday, 4 December
Climate normal for this date — 60-year average.
0.28Saint Helens, Saturday, 5 December
Climate normal for this date — 60-year average.
0.32Saint Helens, Sunday, 6 December
Climate normal for this date — 60-year average.
0.26Saint Helens, Monday, 7 December
Climate normal for this date — 60-year average.
0.31Saint Helens, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.34Saint Helens, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.39Saint Helens, Thursday, 10 December
Climate normal for this date — 60-year average.
0.37Saint Helens, Friday, 11 December
Climate normal for this date — 60-year average.
0.33Saint Helens, Saturday, 12 December
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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