Monthly outlook for Oyster Rocks, DE: average high 83.6°, average low 71.3°. That is 1.4° above the climate normal for August. Precipitation is expected on 5 days (about 0.6 inches), against a normal of 6 days and 2.4 inches. The warmest day looks like 24 August (92.2°), the coolest 16 August (63.6°).
83.6°/71.3°
Average high / low
+1.4°
Above normal
5 / 6
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
81.8°
81.8°
+0°
19 August – 28 August
86.8°
80.4°
+3.6°
29 August – 7 September
at normal
79.4°
—
August records over 66 years
95.2°9 August 2022All-time high
53.6°30 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Slaughter Beach (10 mi).
Mon, 1091° / 74°0
91 °
Oyster Rocks, Monday, 10 August
Partly cloudy. High 91°, low 74°.
Pressure30.00 inHg
Wind0.4 mph S
Humidity59%
Visibility6.2 mi
Dew point71°
Tue, 1186° / 76°0
86 °
Oyster Rocks, Tuesday, 11 August
Overcast. High 86°, low 76°.
Pressure29.88 inHg
Wind15.8 mph NW
Humidity64%
Visibility6.2 mi
Dew point68°
Wed, 1287° / 75°0.01
87 °
Oyster Rocks, Wednesday, 12 August
Light rain. High 87°, low 75°.
Pressure29.77 inHg
Wind5.1 mph NW
Humidity58%
Visibility6.2 mi
Dew point67°
Thu, 1386° / 72°0.11
86 °
Oyster Rocks, Thursday, 13 August
Light rain. High 86°, low 72°.
Pressure29.77 inHg
Wind14.7 mph NW
Humidity53%
Visibility—
Dew point65°
Fri, 1478° / 67°0
78 °
Oyster Rocks, Friday, 14 August
Overcast. High 78°, low 67°.
Pressure30.06 inHg
Wind13.1 mph N
Humidity41%
Visibility—
Dew point49°
Sat, 1576° / 66°0
76 °
Oyster Rocks, Saturday, 15 August
Clear. High 76°, low 66°.
Pressure30.12 inHg
Wind16.3 mph NW
Humidity41%
Visibility—
Dew point49°
Sun, 1676° / 64°0
76 °
Oyster Rocks, Sunday, 16 August
Overcast. High 76°, low 64°.
Pressure30.15 inHg
Wind8.7 mph N
Humidity41%
Visibility—
Dew point49°
Mon, 1772° / 64°0.11
72 °
Oyster Rocks, Monday, 17 August
Light rain. High 72°, low 64°.
Pressure30.03 inHg
Wind9.9 mph S
Humidity73%
Visibility—
Dew point62°
Tue, 1877° / 69°0.11
77 °
Oyster Rocks, Tuesday, 18 August
Light rain. High 77°, low 69°.
Pressure30.03 inHg
Wind10.4 mph E
Humidity75%
Visibility—
Dew point67°
Wed, 1980° / 70°0
80 °
Oyster Rocks, Wednesday, 19 August
Partly cloudy. High 80°, low 70°.
Pressure30.09 inHg
Wind10.8 mph E
Humidity60%
Visibility—
Dew point64°
Thu, 2083° / 71°0
83 °
Oyster Rocks, Thursday, 20 August
Clear. High 83°, low 71°.
Pressure30.03 inHg
Wind9.7 mph S
Humidity50%
Visibility—
Dew point61°
Fri, 2190° / 71°0.13
90 °
Oyster Rocks, Friday, 21 August
Rain. High 90°, low 71°.
Pressure29.88 inHg
Wind15.8 mph S
Humidity52%
Visibility—
Dew point68°
Sat, 2286° / 75°0.08
86 °
Oyster Rocks, Saturday, 22 August
Light rain. High 86°, low 75°.
Pressure29.88 inHg
Wind8.7 mph S
Humidity73%
Visibility—
Dew point74°
Sun, 2390° / 75°0
90 °
Oyster Rocks, Sunday, 23 August
Clear. High 90°, low 75°.
Pressure29.91 inHg
Wind10.4 mph S
Humidity48%
Visibility—
Dew point66°
Mon, 2492° / 77°0.03
92 °
Oyster Rocks, Monday, 24 August
Light rain. High 92°, low 77°.
Pressure29.94 inHg
Wind14.5 mph W
Humidity59%
Visibility—
Dew point74°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2581° / 69°0.05
81 °
Oyster Rocks, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high81°
Average low69°
Average precipitation0.05 in
Chance of precipitation22%
Record high93° (1968)
Record low62° (1994)
Wed, 2681° / 70°0.06
81 °
Oyster Rocks, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high81°
Average low70°
Average precipitation0.06 in
Chance of precipitation20%
Record high89° (2016)
Record low60° (1977)
Thu, 2781° / 71°0.12
81 °
Oyster Rocks, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high81°
Average low71°
Average precipitation0.12 in
Chance of precipitation30%
Record high91° (2020)
Record low60° (2025)
Fri, 2881° / 71°0.19
81 °
Oyster Rocks, Friday, 28 August
Climate normal for this date — 60-year average.
Average high81°
Average low71°
Average precipitation0.19 in
Chance of precipitation45%
Record high94° (2024)
Record low58° (2025)
Sat, 2980° / 71°0.1
80 °
Oyster Rocks, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high80°
Average low71°
Average precipitation0.1 in
Chance of precipitation30%
Record high92° (2018)
Record low55° (1982)
Sun, 3080° / 70°0.07
80 °
Oyster Rocks, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high80°
Average low70°
Average precipitation0.07 in
Chance of precipitation28%
Record high91° (2022)
Record low54° (1986)
Mon, 3180° / 70°0.07
80 °
Oyster Rocks, Monday, 31 August
Climate normal for this date — 60-year average.
Average high80°
Average low70°
Average precipitation0.07 in
Chance of precipitation20%
Record high90° (1973)
Record low58° (1986)
Tue, 0179° / 69°0.2
79 °
Oyster Rocks, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high79°
Average low69°
Average precipitation0.2 in
Chance of precipitation33%
Record high90° (1980)
Record low58° (1986)
Wed, 0279° / 69°0.11
79 °
Oyster Rocks, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high79°
Average low69°
Average precipitation0.11 in
Chance of precipitation35%
Record high91° (1980)
Record low58° (2023)
Thu, 0379° / 69°0.11
79 °
Oyster Rocks, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high79°
Average low69°
Average precipitation0.11 in
Chance of precipitation30%
Record high91° (2023)
Record low58° (1967)
Fri, 0480° / 69°0.11
80 °
Oyster Rocks, Friday, 4 September
Climate normal for this date — 60-year average.
Average high80°
Average low69°
Average precipitation0.11 in
Chance of precipitation23%
Record high93° (2023)
Record low58° (1997)
Sat, 0579° / 69°0.07
79 °
Oyster Rocks, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high79°
Average low69°
Average precipitation0.07 in
Chance of precipitation28%
Record high93° (2023)
Record low59° (1994)
Sun, 0679° / 69°0.19
79 °
Oyster Rocks, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high79°
Average low69°
Average precipitation0.19 in
Chance of precipitation37%
Record high94° (2023)
Record low58° (1962)
Mon, 0778° / 68°0.09
78 °
Oyster Rocks, Monday, 7 September
Climate normal for this date — 60-year average.
Average high78°
Average low68°
Average precipitation0.09 in
Chance of precipitation28%
Record high90° (1983)
Record low58° (1963)
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 Oyster Rocks, 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 Oyster Rocks, 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.