Monthly outlook for Blue Ball, DE: average high 80.7°, average low 66.3°. That is 1.2° below the climate normal for August. Precipitation is expected on 5 days (about 1.2 inches), against a normal of 6 days and 2.2 inches. The warmest day looks like 10 August (89.3°), the coolest 16 August (58.7°).
80.7°/66.3°
Average high / low
−1.2°
Below normal
5 / 6
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
83°
83.6°
-0.3°
18 August – 27 August
76.8°
82°
-2.9°
28 August – 6 September
at normal
81.2°
—
August records over 66 years
98.1°28 August 2024All-time high
50.5°30 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Wilmington (2 mi).
Sun, 0988° / 70°0
88 °
Blue Ball, Sunday, 9 August
Overcast. High 88°, low 70°.
Pressure30.00 inHg
Wind7.4 mph W
Humidity49%
Visibility6.2 mi
Dew point66°
Mon, 1089° / 73°0.02
89 °
Blue Ball, Monday, 10 August
Light rain. High 89°, low 73°.
Pressure30.00 inHg
Wind6.9 mph W
Humidity46%
Visibility6.2 mi
Dew point65°
Tue, 1188° / 71°0.15
88 °
Blue Ball, Tuesday, 11 August
Light rain. High 88°, low 71°.
Pressure29.91 inHg
Wind6 mph W
Humidity60%
Visibility6.2 mi
Dew point69°
Wed, 1281° / 71°0.48
81 °
Blue Ball, Wednesday, 12 August
Rain. High 81°, low 71°.
Pressure29.80 inHg
Wind8.3 mph W
Humidity73%
Visibility6.2 mi
Dew point68°
Thu, 1387° / 69°0
87 °
Blue Ball, Thursday, 13 August
Partly cloudy. High 87°, low 69°.
Pressure29.77 inHg
Wind11.4 mph W
Humidity47%
Visibility—
Dew point62°
Fri, 1476° / 64°0.02
76 °
Blue Ball, Friday, 14 August
Light rain. High 76°, low 64°.
Pressure29.97 inHg
Wind8.6 mph NW
Humidity41%
Visibility—
Dew point49°
Sat, 1576° / 59°0
76 °
Blue Ball, Saturday, 15 August
Clear. High 76°, low 59°.
Pressure30.18 inHg
Wind10.2 mph N
Humidity36%
Visibility—
Dew point45°
Sun, 1680° / 59°0
80 °
Blue Ball, Sunday, 16 August
Clear. High 80°, low 59°.
Pressure30.27 inHg
Wind5.6 mph N
Humidity35%
Visibility—
Dew point47°
Mon, 1779° / 62°0
79 °
Blue Ball, Monday, 17 August
Overcast. High 79°, low 62°.
Pressure30.15 inHg
Wind10.6 mph SE
Humidity54%
Visibility—
Dew point59°
Tue, 1878° / 68°0.09
78 °
Blue Ball, Tuesday, 18 August
Light rain. High 78°, low 68°.
Pressure29.97 inHg
Wind10 mph SW
Humidity91%
Visibility—
Dew point69°
Wed, 1984° / 68°0.01
84 °
Blue Ball, Wednesday, 19 August
Light rain. High 84°, low 68°.
Pressure29.85 inHg
Wind9.7 mph NW
Humidity44%
Visibility—
Dew point58°
Thu, 2072° / 64°0
72 °
Blue Ball, Thursday, 20 August
Overcast. High 72°, low 64°.
Pressure29.97 inHg
Wind5.8 mph N
Humidity66%
Visibility—
Dew point57°
Fri, 2171° / 64°0.37
71 °
Blue Ball, Friday, 21 August
Rain. High 71°, low 64°.
Pressure29.88 inHg
Wind9.1 mph SW
Humidity97%
Visibility—
Dew point70°
Sat, 2283° / 67°0.02
83 °
Blue Ball, Saturday, 22 August
Light rain. High 83°, low 67°.
Pressure29.77 inHg
Wind8.2 mph NW
Humidity56%
Visibility—
Dew point62°
Sun, 2373° / 60°0
73 °
Blue Ball, Sunday, 23 August
Partly cloudy. High 73°, low 60°.
Pressure30.03 inHg
Wind13.8 mph N
Humidity33%
Visibility—
Dew point39°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2482° / 65°0.07
82 °
Blue Ball, Monday, 24 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.07 in
Chance of precipitation23%
Record high92° (1998)
Record low55° (1971)
Tue, 2583° / 66°0.06
83 °
Blue Ball, 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 low55° (1987)
Wed, 2683° / 67°0.06
83 °
Blue Ball, 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 low56° (1977)
Thu, 2783° / 67°0.17
83 °
Blue Ball, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.17 in
Chance of precipitation33%
Record high91° (2020)
Record low57° (1963)
Fri, 2883° / 68°0.24
83 °
Blue Ball, Friday, 28 August
Climate normal for this date — 60-year average.
Average high83°
Average low68°
Average precipitation0.24 in
Chance of precipitation47%
Record high98° (2024)
Record low56° (2025)
Sat, 2982° / 68°0.12
82 °
Blue Ball, 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° (1986)
Sun, 3082° / 67°0.08
82 °
Blue Ball, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high82°
Average low67°
Average precipitation0.08 in
Chance of precipitation27%
Record high94° (1973)
Record low51° (1986)
Mon, 3182° / 67°0.07
82 °
Blue Ball, Monday, 31 August
Climate normal for this date — 60-year average.
Average high82°
Average low67°
Average precipitation0.07 in
Chance of precipitation18%
Record high94° (2010)
Record low52° (1976)
Tue, 0181° / 65°0.14
81 °
Blue Ball, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.14 in
Chance of precipitation30%
Record high92° (2010)
Record low56° (1967)
Wed, 0281° / 65°0.11
81 °
Blue Ball, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.11 in
Chance of precipitation35%
Record high93° (1980)
Record low54° (1970)
Thu, 0381° / 65°0.13
81 °
Blue Ball, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.13 in
Chance of precipitation35%
Record high93° (2023)
Record low50° (1967)
Fri, 0481° / 65°0.09
81 °
Blue Ball, Friday, 4 September
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.09 in
Chance of precipitation25%
Record high96° (2023)
Record low53° (2024)
Sat, 0580° / 65°0.11
80 °
Blue Ball, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high80°
Average low65°
Average precipitation0.11 in
Chance of precipitation32%
Record high97° (2023)
Record low53° (1994)
Sun, 0680° / 65°0.23
80 °
Blue Ball, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high80°
Average low65°
Average precipitation0.23 in
Chance of precipitation30%
Record high97° (2023)
Record low52° (1994)
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 Blue Ball, 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 Blue Ball, 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.