Monthly outlook for Delaplane Manor, DE: average high 82.1°, average low 65.8°. That is 0.3° below the climate normal for August. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 6 days and 2.1 inches. The warmest day looks like 9 August (89.2°), the coolest 16 August (58.3°).
82.1°/65.8°
Average high / low
−0.3°
Below normal
2 / 6
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
80.9°
83.3°
-1.3°
19 August – 28 August
84°
82.1°
+1.1°
29 August – 7 September
at normal
80.9°
—
August records over 66 years
97.2°9 August 2001All-time high
50.5°30 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Elsmere (7 mi).
Mon, 1088° / 71°0
88 °
Delaplane Manor, Monday, 10 August
Clear. High 88°, low 71°.
Pressure30.00 inHg
Wind6.1 mph W
Humidity43%
Visibility6.2 mi
Dew point64°
Tue, 1187° / 71°0.04
87 °
Delaplane Manor, Tuesday, 11 August
Light rain. High 87°, low 71°.
Pressure29.88 inHg
Wind11.4 mph NW
Humidity59%
Visibility6.2 mi
Dew point67°
Wed, 1285° / 70°0
85 °
Delaplane Manor, Wednesday, 12 August
Light rain. High 85°, low 70°.
Pressure29.83 inHg
Wind3.8 mph W
Humidity59%
Visibility6.2 mi
Dew point66°
Thu, 1384° / 70°0
84 °
Delaplane Manor, Thursday, 13 August
Light rain. High 84°, low 70°.
Pressure29.83 inHg
Wind14.7 mph NW
Humidity56%
Visibility6.2 mi
Dew point65°
Fri, 1471° / 62°0
71 °
Delaplane Manor, Friday, 14 August
Overcast. High 71°, low 62°.
Pressure30.06 inHg
Wind7.4 mph NW
Humidity52%
Visibility—
Dew point52°
Sat, 1576° / 58°0
76 °
Delaplane Manor, Saturday, 15 August
Overcast. High 76°, low 58°.
Pressure30.18 inHg
Wind11.1 mph N
Humidity35%
Visibility—
Dew point44°
Sun, 1675° / 58°0
75 °
Delaplane Manor, Sunday, 16 August
Overcast. High 75°, low 58°.
Pressure30.18 inHg
Wind5.5 mph N
Humidity49%
Visibility—
Dew point51°
Mon, 1773° / 64°0.06
73 °
Delaplane Manor, Monday, 17 August
Light rain. High 73°, low 64°.
Pressure29.88 inHg
Wind8.7 mph NW
Humidity76%
Visibility—
Dew point65°
Tue, 1883° / 62°0
83 °
Delaplane Manor, Tuesday, 18 August
Overcast. High 83°, low 62°.
Pressure29.97 inHg
Wind5.7 mph NW
Humidity36%
Visibility—
Dew point50°
Wed, 1984° / 64°0.07
84 °
Delaplane Manor, Wednesday, 19 August
Light rain. High 84°, low 64°.
Pressure29.83 inHg
Wind10.8 mph S
Humidity48%
Visibility—
Dew point60°
Thu, 2082° / 68°0
82 °
Delaplane Manor, Thursday, 20 August
Partly cloudy. High 82°, low 68°.
Pressure29.74 inHg
Wind9.9 mph NW
Humidity54%
Visibility—
Dew point63°
Fri, 2181° / 63°0
81 °
Delaplane Manor, Friday, 21 August
Mostly clear. High 81°, low 63°.
Pressure29.88 inHg
Wind7.7 mph N
Humidity41%
Visibility—
Dew point53°
Sat, 2288° / 65°0
88 °
Delaplane Manor, Saturday, 22 August
Clear. High 88°, low 65°.
Pressure29.91 inHg
Wind12.1 mph SW
Humidity41%
Visibility—
Dew point59°
Sun, 2387° / 72°0
87 °
Delaplane Manor, Sunday, 23 August
Clear. High 87°, low 72°.
Pressure29.88 inHg
Wind13.8 mph W
Humidity36%
Visibility—
Dew point56°
Mon, 2480° / 63°0
80 °
Delaplane Manor, Monday, 24 August
Clear. High 80°, low 63°.
Pressure30.15 inHg
Wind6.7 mph N
Humidity32%
Visibility—
Dew point45°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2583° / 66°0.06
83 °
Delaplane Manor, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.06 in
Chance of precipitation12%
Record high94° (1968)
Record low57° (1987)
Wed, 2683° / 67°0.06
83 °
Delaplane Manor, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.06 in
Chance of precipitation22%
Record high92° (1975)
Record low57° (1963)
Thu, 2783° / 68°0.18
83 °
Delaplane Manor, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high83°
Average low68°
Average precipitation0.18 in
Chance of precipitation35%
Record high92° (2020)
Record low58° (1963)
Fri, 2883° / 68°0.23
83 °
Delaplane Manor, Friday, 28 August
Climate normal for this date — 60-year average.
Average high83°
Average low68°
Average precipitation0.23 in
Chance of precipitation47%
Record high97° (2024)
Record low58° (1968)
Sat, 2982° / 68°0.12
82 °
Delaplane Manor, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high82°
Average low68°
Average precipitation0.12 in
Chance of precipitation23%
Record high94° (1973)
Record low51° (1982)
Sun, 3082° / 67°0.07
82 °
Delaplane Manor, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high82°
Average low67°
Average precipitation0.07 in
Chance of precipitation27%
Record high94° (1973)
Record low51° (1986)
Mon, 3182° / 67°0.08
82 °
Delaplane Manor, Monday, 31 August
Climate normal for this date — 60-year average.
Average high82°
Average low67°
Average precipitation0.08 in
Chance of precipitation18%
Record high95° (2010)
Record low54° (1976)
Tue, 0181° / 66°0.14
81 °
Delaplane Manor, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high81°
Average low66°
Average precipitation0.14 in
Chance of precipitation30%
Record high93° (2010)
Record low56° (1967)
Wed, 0280° / 65°0.1
80 °
Delaplane Manor, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high80°
Average low65°
Average precipitation0.1 in
Chance of precipitation35%
Record high94° (1980)
Record low55° (1967)
Thu, 0381° / 65°0.13
81 °
Delaplane Manor, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.13 in
Chance of precipitation35%
Record high92° (2015)
Record low51° (1967)
Fri, 0481° / 66°0.09
81 °
Delaplane Manor, Friday, 4 September
Climate normal for this date — 60-year average.
Average high81°
Average low66°
Average precipitation0.09 in
Chance of precipitation25%
Record high95° (2023)
Record low53° (2024)
Sat, 0580° / 65°0.11
80 °
Delaplane Manor, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high80°
Average low65°
Average precipitation0.11 in
Chance of precipitation28%
Record high96° (2023)
Record low54° (1997)
Sun, 0680° / 65°0.22
80 °
Delaplane Manor, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high80°
Average low65°
Average precipitation0.22 in
Chance of precipitation28%
Record high96° (2023)
Record low54° (1962)
Mon, 0780° / 64°0.11
80 °
Delaplane Manor, Monday, 7 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.11 in
Chance of precipitation28%
Record high91° (1998)
Record low50° (1984)
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 Delaplane Manor, 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 Delaplane Manor, 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.