Weather in Dewey Beach, DE
Dewey Beach, Sunday, 9 August, 08:50
Overcast. Feels like 92°. High 86°, low 76°.
Monthly outlook for Dewey Beach, DE: average high 80.5°, average low 72°. That is 0.3° below the climate normal for August. Precipitation is expected on 6 days (about 0.7 inches), against a normal of 6 days and 2.4 inches. The warmest day looks like 10 August (90.6°), the coolest 14 August (64.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 79.9° | 81.6° | -1° |
| 19 August – 28 August | 81.5° | 80.3° | +0.7° |
| 29 August – 7 September | at normal | 79.2° | — |
August records over 66 years
0
Dewey Beach, Monday, 10 August
Mostly clear. High 91°, low 75°.
0Dewey Beach, Tuesday, 11 August
Overcast. High 84°, low 76°.
0.12
Dewey Beach, Wednesday, 12 August
Light rain. High 81°, low 75°.
0.01Dewey Beach, Thursday, 13 August
Light rain. High 85°, low 73°.
0.03Dewey Beach, Friday, 14 August
Light rain. High 74°, low 65°.
0Dewey Beach, Saturday, 15 August
Overcast. High 75°, low 66°.
0Dewey Beach, Sunday, 16 August
Overcast. High 73°, low 68°.
0.2Dewey Beach, Monday, 17 August
Light rain. High 74°, low 70°.
0Dewey Beach, Tuesday, 18 August
Mostly clear. High 77°, low 69°.
0.08Dewey Beach, Wednesday, 19 August
Light rain. High 77°, low 72°.
0Dewey Beach, Thursday, 20 August
Mostly clear. High 84°, low 71°.
0.11Dewey Beach, Friday, 21 August
Light rain. High 81°, low 72°.
0.08Dewey Beach, Saturday, 22 August
Light rain. High 81°, low 75°.
0
Dewey Beach, Sunday, 23 August
Clear. High 82°, low 75°.
0.06Dewey Beach, Monday, 24 August
Light rain. High 84°, low 76°.
0.05Dewey Beach, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.06
Dewey Beach, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.12Dewey Beach, Thursday, 27 August
Climate normal for this date — 60-year average.
0.19
Dewey Beach, Friday, 28 August
Climate normal for this date — 60-year average.
0.09Dewey Beach, Saturday, 29 August
Climate normal for this date — 60-year average.
0.07Dewey Beach, Sunday, 30 August
Climate normal for this date — 60-year average.
0.08Dewey Beach, Monday, 31 August
Climate normal for this date — 60-year average.
0.19Dewey Beach, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.1Dewey Beach, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.09Dewey Beach, Thursday, 3 September
Climate normal for this date — 60-year average.
0.11Dewey Beach, Friday, 4 September
Climate normal for this date — 60-year average.
0.07Dewey Beach, Saturday, 5 September
Climate normal for this date — 60-year average.
0.19Dewey Beach, Sunday, 6 September
Climate normal for this date — 60-year average.
0.09Dewey Beach, 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 Dewey Beach, DE 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 Dewey Beach, DE 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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