Weather in Arlington Heights, WA
Arlington Heights, Sunday, 9 August, 04:23
Clear. Feels like 53°. High 77°, low 54°.
Monthly outlook for Arlington Heights, WA: average high 73.9°, average low 54.9°. That is 0° below the climate normal for August. Precipitation is expected on 5 days (about 1.4 inches), against a normal of 3 days and 0.9 inches. The warmest day looks like 15 August (80.7°), the coolest 10 August (50.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 76.1° | 74.8° | +0.8° |
| 19 August – 28 August | 70.3° | 72.7° | -1.4° |
| 29 August – 7 September | at normal | 70.7° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Marysville (10 mi).
0
Arlington Heights, Monday, 10 August
Partly cloudy. High 77°, low 50°.
0
Arlington Heights, Tuesday, 11 August
Clear. High 75°, low 52°.
0Arlington Heights, Wednesday, 12 August
Clear. High 76°, low 53°.
0Arlington Heights, Thursday, 13 August
Clear. High 80°, low 54°.
0
Arlington Heights, Friday, 14 August
Overcast. High 80°, low 57°.
0.01
Arlington Heights, Saturday, 15 August
Light rain. High 81°, low 57°.
0Arlington Heights, Sunday, 16 August
Overcast. High 79°, low 55°.
0.35Arlington Heights, Monday, 17 August
Light rain. High 61°, low 57°.
0.02Arlington Heights, Tuesday, 18 August
Light rain. High 74°, low 57°.
0Arlington Heights, Wednesday, 19 August
Partly cloudy. High 79°, low 54°.
0.06Arlington Heights, Thursday, 20 August
Light rain. High 77°, low 61°.
0.08Arlington Heights, Friday, 21 August
Light rain. High 73°, low 56°.
0.28Arlington Heights, Saturday, 22 August
Rain. High 66°, low 54°.
0.03Arlington Heights, Sunday, 23 August
Light rain. High 69°, low 54°.
0.59Arlington Heights, Monday, 24 August
Rain. High 58°, low 55°.
0.07Arlington Heights, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.06Arlington Heights, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.13Arlington Heights, Thursday, 27 August
Climate normal for this date — 60-year average.
0.06Arlington Heights, Friday, 28 August
Climate normal for this date — 60-year average.
0.1
Arlington Heights, Saturday, 29 August
Climate normal for this date — 60-year average.
0.09Arlington Heights, Sunday, 30 August
Climate normal for this date — 60-year average.
0.08Arlington Heights, Monday, 31 August
Climate normal for this date — 60-year average.
0.16Arlington Heights, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.09Arlington Heights, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.09Arlington Heights, Thursday, 3 September
Climate normal for this date — 60-year average.
0.06Arlington Heights, Friday, 4 September
Climate normal for this date — 60-year average.
0.1Arlington Heights, Saturday, 5 September
Climate normal for this date — 60-year average.
0.13Arlington Heights, Sunday, 6 September
Climate normal for this date — 60-year average.
0.07Arlington Heights, 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 Arlington Heights, 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 Arlington Heights, 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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