Weather in Deal Island, MD
Deal Island, Sunday, 9 August, 08:35
Overcast. Feels like 90°. High 91°, low 75°.
Monthly outlook for Deal Island, MD: average high 83.7°, average low 73.4°. That is 0.7° above the climate normal for August. Precipitation is expected on 5 days (about 0.8 inches), against a normal of 6 days and 2.6 inches. The warmest day looks like 10 August (92.4°), the coolest 16 August (65.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 82.8° | 83.1° | -0.2° |
| 19 August – 28 August | 85.3° | 81.9° | +1.9° |
| 29 August – 7 September | at normal | 80.9° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Dames Quarter (3 mi).
0.01
Deal Island, Monday, 10 August
Light rain. High 92°, low 77°.
0
Deal Island, Tuesday, 11 August
Mostly clear. High 86°, low 76°.
0.02Deal Island, Wednesday, 12 August
Light rain. High 84°, low 76°.
0.2Deal Island, Thursday, 13 August
Rain. High 86°, low 76°.
0Deal Island, Friday, 14 August
Overcast. High 77°, low 68°.
0Deal Island, Saturday, 15 August
Overcast. High 78°, low 67°.
0
Deal Island, Sunday, 16 August
Partly cloudy. High 79°, low 65°.
0.25Deal Island, Monday, 17 August
Light rain. High 76°, low 73°.
0.12Deal Island, Tuesday, 18 August
Light rain. High 79°, low 70°.
0
Deal Island, Wednesday, 19 August
Clear. High 85°, low 70°.
0Deal Island, Thursday, 20 August
Clear. High 83°, low 71°.
0.04Deal Island, Friday, 21 August
Light rain. High 86°, low 78°.
0.03Deal Island, Saturday, 22 August
Light rain. High 83°, low 79°.
0Deal Island, Sunday, 23 August
Clear. High 87°, low 79°.
0.09Deal Island, Monday, 24 August
Light rain. High 88°, low 73°.
0.06Deal Island, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.05Deal Island, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.13Deal Island, Thursday, 27 August
Climate normal for this date — 60-year average.
0.16
Deal Island, Friday, 28 August
Climate normal for this date — 60-year average.
0.11Deal Island, Saturday, 29 August
Climate normal for this date — 60-year average.
0.07Deal Island, Sunday, 30 August
Climate normal for this date — 60-year average.
0.08Deal Island, Monday, 31 August
Climate normal for this date — 60-year average.
0.24Deal Island, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.09Deal Island, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.1Deal Island, Thursday, 3 September
Climate normal for this date — 60-year average.
0.14Deal Island, Friday, 4 September
Climate normal for this date — 60-year average.
0.09Deal Island, Saturday, 5 September
Climate normal for this date — 60-year average.
0.19Deal Island, Sunday, 6 September
Climate normal for this date — 60-year average.
0.07Deal Island, 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 Deal Island, 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 Deal Island, 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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