Weather in Seattle, WA
Seattle, Saturday, 8 August, 12:18
Overcast. Feels like 76°. High 82°, low 58°.
Monthly outlook for Seattle, WA: average high 80.9°, average low 57.4°. That is 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 (88°), the coolest 10 August (54.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 August – 17 August | 80.8° | 76.4° | +2.5° |
| 18 August – 27 August | 81° | 73.9° | +3.9° |
| 28 August – 6 September | at normal | 71.9° | — |
August records over 66 years
0
Seattle, Sunday, 9 August
Mostly clear. High 77°, low 54°.
0
Seattle, Monday, 10 August
Partly cloudy. High 83°, low 54°.
0
Seattle, Tuesday, 11 August
Clear. High 85°, low 56°.
0Seattle, Wednesday, 12 August
Overcast. High 70°, low 60°.
0.03
Seattle, Thursday, 13 August
Light rain. High 78°, low 58°.
0Seattle, Friday, 14 August
Overcast. High 79°, low 55°.
0Seattle, Saturday, 15 August
Overcast. High 83°, low 58°.
0Seattle, Sunday, 16 August
Partly cloudy. High 84°, low 57°.
0Seattle, Monday, 17 August
Partly cloudy. High 88°, low 57°.
0Seattle, Tuesday, 18 August
Overcast. High 86°, low 58°.
0Seattle, Wednesday, 19 August
Overcast. High 72°, low 60°.
0Seattle, Thursday, 20 August
Overcast. High 83°, low 59°.
0Seattle, Friday, 21 August
Mostly clear. High 85°, low 59°.
0Seattle, Saturday, 22 August
Overcast. High 78°, low 59°.
0Seattle, Sunday, 23 August
Clear. High 81°, low 56°.
0.07Seattle, Monday, 24 August
Climate normal for this date — 60-year average.
0.07Seattle, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.05Seattle, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.08Seattle, Thursday, 27 August
Climate normal for this date — 60-year average.
0.04Seattle, Friday, 28 August
Climate normal for this date — 60-year average.
0.1Seattle, Saturday, 29 August
Climate normal for this date — 60-year average.
0.07
Seattle, Sunday, 30 August
Climate normal for this date — 60-year average.
0.06Seattle, Monday, 31 August
Climate normal for this date — 60-year average.
0.08Seattle, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.08Seattle, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.08Seattle, Thursday, 3 September
Climate normal for this date — 60-year average.
0.06Seattle, Friday, 4 September
Climate normal for this date — 60-year average.
0.07Seattle, Saturday, 5 September
Climate normal for this date — 60-year average.
0.1Seattle, 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 Seattle, 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 Seattle, 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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