Weather in Cape Arthur, MD
Cape Arthur, Sunday, 9 August, 06:30
Overcast. Feels like 75°. High 88°, low 74°.
Monthly outlook for Cape Arthur, MD: average high 86.9°, average low 71.8°. That is 2.7° above the climate normal for August. Precipitation is expected on 4 days (about 0.5 inches), against a normal of 6 days and 2.1 inches. The warmest day looks like 21 August (93.2°), the coolest 16 August (64.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 84.9° | 82.7° | +1.2° |
| 19 August – 28 August | 90.2° | 81.4° | +4.9° |
| 29 August – 7 September | at normal | 80.4° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Green Haven (4 mi).
0
Cape Arthur, Monday, 10 August
Partly cloudy. High 89°, low 74°.
0.06
Cape Arthur, Tuesday, 11 August
Light rain. High 92°, low 72°.
0.04Cape Arthur, Wednesday, 12 August
Light rain. High 90°, low 75°.
0.03Cape Arthur, Thursday, 13 August
Light rain. High 88°, low 74°.
0Cape Arthur, Friday, 14 August
Overcast. High 82°, low 67°.
0Cape Arthur, Saturday, 15 August
Overcast. High 80°, low 66°.
0Cape Arthur, Sunday, 16 August
Overcast. High 80°, low 64°.
0.2Cape Arthur, Monday, 17 August
Light rain. High 76°, low 70°.
0.02Cape Arthur, Tuesday, 18 August
Light rain. High 84°, low 70°.
0
Cape Arthur, Wednesday, 19 August
Clear. High 86°, low 70°.
0
Cape Arthur, Thursday, 20 August
Mostly clear. High 86°, low 72°.
0.07Cape Arthur, Friday, 21 August
Light rain. High 93°, low 73°.
0.01Cape Arthur, Saturday, 22 August
Light rain. High 93°, low 77°.
0.01Cape Arthur, Sunday, 23 August
Light rain. High 90°, low 76°.
0.11Cape Arthur, Monday, 24 August
Light rain. High 93°, low 74°.
0.07Cape Arthur, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.06Cape Arthur, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.16
Cape Arthur, Thursday, 27 August
Climate normal for this date — 60-year average.
0.17Cape Arthur, Friday, 28 August
Climate normal for this date — 60-year average.
0.12Cape Arthur, Saturday, 29 August
Climate normal for this date — 60-year average.
0.06Cape Arthur, Sunday, 30 August
Climate normal for this date — 60-year average.
0.08Cape Arthur, Monday, 31 August
Climate normal for this date — 60-year average.
0.14Cape Arthur, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.12Cape Arthur, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.11Cape Arthur, Thursday, 3 September
Climate normal for this date — 60-year average.
0.09Cape Arthur, Friday, 4 September
Climate normal for this date — 60-year average.
0.13Cape Arthur, Saturday, 5 September
Climate normal for this date — 60-year average.
0.24Cape Arthur, Sunday, 6 September
Climate normal for this date — 60-year average.
0.08Cape Arthur, 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 Cape Arthur, MD 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 Cape Arthur, MD 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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