Weather in Upper Preston, WA
Upper Preston, Saturday, 8 August, 15:59
Overcast. Feels like 82°. High 84°, low 56°.
Monthly outlook for Upper Preston, WA: average high 79.3°, average low 54°. That is 2.3° above the climate normal for August. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 17 August (85.7°), the coolest 10 August (49.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 August – 17 August | 78.4° | 76.1° | +1.2° |
| 18 August – 27 August | 81° | 73.7° | +4.1° |
| 28 August – 6 September | at normal | 71.8° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Bellevue (13 mi).
0
Upper Preston, Sunday, 9 August
Mostly clear. High 75°, low 50°.
0Upper Preston, Monday, 10 August
Mostly clear. High 80°, low 49°.
0
Upper Preston, Tuesday, 11 August
Clear. High 81°, low 51°.
0
Upper Preston, Wednesday, 12 August
Light rain. High 66°, low 55°.
0.04Upper Preston, Thursday, 13 August
Light rain. High 74°, low 55°.
0Upper Preston, Friday, 14 August
Overcast. High 80°, low 51°.
0Upper Preston, Saturday, 15 August
Overcast. High 76°, low 55°.
0
Upper Preston, Sunday, 16 August
Partly cloudy. High 83°, low 54°.
0Upper Preston, Monday, 17 August
Partly cloudy. High 86°, low 56°.
0Upper Preston, Tuesday, 18 August
Overcast. High 82°, low 55°.
0Upper Preston, Wednesday, 19 August
Overcast. High 74°, low 57°.
0Upper Preston, Thursday, 20 August
Overcast. High 81°, low 55°.
0Upper Preston, Friday, 21 August
Clear. High 82°, low 55°.
0Upper Preston, Saturday, 22 August
Overcast. High 80°, low 54°.
0Upper Preston, Sunday, 23 August
Mostly clear. High 85°, low 56°.
0.07Upper Preston, Monday, 24 August
Climate normal for this date — 60-year average.
0.07Upper Preston, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.05Upper Preston, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.08Upper Preston, Thursday, 27 August
Climate normal for this date — 60-year average.
0.04Upper Preston, Friday, 28 August
Climate normal for this date — 60-year average.
0.11Upper Preston, Saturday, 29 August
Climate normal for this date — 60-year average.
0.07
Upper Preston, Sunday, 30 August
Climate normal for this date — 60-year average.
0.06Upper Preston, Monday, 31 August
Climate normal for this date — 60-year average.
0.08Upper Preston, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.08Upper Preston, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.08Upper Preston, Thursday, 3 September
Climate normal for this date — 60-year average.
0.06Upper Preston, Friday, 4 September
Climate normal for this date — 60-year average.
0.07Upper Preston, Saturday, 5 September
Climate normal for this date — 60-year average.
0.1Upper Preston, Sunday, 6 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 Upper Preston, 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 Upper Preston, 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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