Weather in West Saint Helens, OR
West Saint Helens, Sunday, 9 August, 08:31
Clear. Feels like 61°. High 83°, low 57°.
Monthly outlook for West Saint Helens, OR: average high 88.1°, average low 53.5°. That is 5.4° above the climate normal for August. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 2 days and 0.6 inches. The warmest day looks like 24 August (100.5°), the coolest 11 August (49.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 84.9° | 79.4° | +3.1° |
| 19 August – 28 August | 93.5° | 77.2° | +9.1° |
| 29 August – 7 September | at normal | 75.6° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Prescott (13 mi).
0West Saint Helens, Monday, 10 August
Clear. High 81°, low 54°.
0West Saint Helens, Tuesday, 11 August
Clear. High 84°, low 49°.
0West Saint Helens, Wednesday, 12 August
Clear. High 80°, low 53°.
0West Saint Helens, Thursday, 13 August
Clear. High 88°, low 50°.
0
West Saint Helens, Friday, 14 August
Overcast. High 87°, low 54°.
0West Saint Helens, Saturday, 15 August
Overcast. High 85°, low 52°.
0
West Saint Helens, Sunday, 16 August
Mostly clear. High 88°, low 54°.
0West Saint Helens, Monday, 17 August
Clear. High 85°, low 51°.
0West Saint Helens, Tuesday, 18 August
Clear. High 88°, low 50°.
0West Saint Helens, Wednesday, 19 August
Clear. High 92°, low 56°.
0West Saint Helens, Thursday, 20 August
Clear. High 90°, low 55°.
0West Saint Helens, Friday, 21 August
Clear. High 90°, low 52°.
0West Saint Helens, Saturday, 22 August
Clear. High 93°, low 54°.
0West Saint Helens, Sunday, 23 August
Clear. High 95°, low 56°.
0West Saint Helens, Monday, 24 August
Mostly clear. High 101°, low 58°.
0.05West Saint Helens, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.02West Saint Helens, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.04
West Saint Helens, Thursday, 27 August
Climate normal for this date — 60-year average.
0.04West Saint Helens, Friday, 28 August
Climate normal for this date — 60-year average.
0.07West Saint Helens, Saturday, 29 August
Climate normal for this date — 60-year average.
0.07West Saint Helens, Sunday, 30 August
Climate normal for this date — 60-year average.
0.05West Saint Helens, Monday, 31 August
Climate normal for this date — 60-year average.
0.07West Saint Helens, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.04West Saint Helens, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.06West Saint Helens, Thursday, 3 September
Climate normal for this date — 60-year average.
0.03West Saint Helens, Friday, 4 September
Climate normal for this date — 60-year average.
0.06West Saint Helens, Saturday, 5 September
Climate normal for this date — 60-year average.
0.06West Saint Helens, Sunday, 6 September
Climate normal for this date — 60-year average.
0.05West Saint Helens, Monday, 7 September
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 West Saint Helens, OR 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 West Saint Helens, OR 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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