Weather in West Haven-Sylvan, OR
West Haven-Sylvan, Sunday, 9 August, 08:42
Partly cloudy. Feels like 60°. High 85°, low 57°.
Monthly outlook for West Haven-Sylvan, OR: average high 90.1°, average low 61.3°. That is 4.8° above the climate normal for August. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 2 days and 0.4 inches. The warmest day looks like 24 August (101.6°), the coolest 10 August (51.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 87.5° | 82.6° | +2.7° |
| 19 August – 28 August | 94.5° | 79.8° | +8.2° |
| 29 August – 7 September | at normal | 78.1° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Metzger (5 mi).
0
West Haven-Sylvan, Monday, 10 August
Clear. High 82°, low 52°.
0West Haven-Sylvan, Tuesday, 11 August
Clear. High 85°, low 58°.
0West Haven-Sylvan, Wednesday, 12 August
Clear. High 83°, low 60°.
0West Haven-Sylvan, Thursday, 13 August
Clear. High 88°, low 58°.
0
West Haven-Sylvan, Friday, 14 August
Overcast. High 91°, low 63°.
0West Haven-Sylvan, Saturday, 15 August
Overcast. High 89°, low 63°.
0West Haven-Sylvan, Sunday, 16 August
Partly cloudy. High 91°, low 63°.
0West Haven-Sylvan, Monday, 17 August
Clear. High 89°, low 63°.
0West Haven-Sylvan, Tuesday, 18 August
Clear. High 91°, low 59°.
0West Haven-Sylvan, Wednesday, 19 August
Clear. High 93°, low 64°.
0West Haven-Sylvan, Thursday, 20 August
Clear. High 91°, low 64°.
0West Haven-Sylvan, Friday, 21 August
Clear. High 91°, low 61°.
0West Haven-Sylvan, Saturday, 22 August
Clear. High 94°, low 63°.
0West Haven-Sylvan, Sunday, 23 August
Clear. High 96°, low 65°.
0
West Haven-Sylvan, Monday, 24 August
Mostly clear. High 102°, low 67°.
0.04West Haven-Sylvan, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.02West Haven-Sylvan, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.02West Haven-Sylvan, Thursday, 27 August
Climate normal for this date — 60-year average.
0.02West Haven-Sylvan, Friday, 28 August
Climate normal for this date — 60-year average.
0.06West Haven-Sylvan, Saturday, 29 August
Climate normal for this date — 60-year average.
0.04West Haven-Sylvan, Sunday, 30 August
Climate normal for this date — 60-year average.
0.03West Haven-Sylvan, Monday, 31 August
Climate normal for this date — 60-year average.
0.05West Haven-Sylvan, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.04West Haven-Sylvan, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.04West Haven-Sylvan, Thursday, 3 September
Climate normal for this date — 60-year average.
0.03West Haven-Sylvan, Friday, 4 September
Climate normal for this date — 60-year average.
0.03West Haven-Sylvan, Saturday, 5 September
Climate normal for this date — 60-year average.
0.05West Haven-Sylvan, Sunday, 6 September
Climate normal for this date — 60-year average.
0.03West Haven-Sylvan, 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 Haven-Sylvan, 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 Haven-Sylvan, 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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