Monthly outlook for Cave Colony, DE: average high 84.4°, average low 67.6°. That is 1.2° above the climate normal for August. Precipitation is expected on 5 days (about 0.8 inches), against a normal of 6 days and 2.5 inches. The warmest day looks like 10 August (95.8°), the coolest 15 August (59.3°).
84.4°/67.6°
Average high / low
+1.2°
Above normal
5 / 6
Wet days / normal
0.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
86.4°
82.8°
+2°
18 August – 27 August
81°
81.3°
-0.2°
28 August – 6 September
at normal
80.6°
—
August records over 66 years
95.4°3 August 2006All-time high
53.1°30 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Ellendale (8 mi).
Sun, 0991° / 74°0.01
91 °
Cave Colony, Sunday, 9 August
Light rain. High 91°, low 74°.
Pressure30.03 inHg
Wind8.4 mph W
Humidity48%
Visibility6.2 mi
Dew point69°
Mon, 1096° / 75°0
96 °
Cave Colony, Monday, 10 August
Mostly clear. High 96°, low 75°.
Pressure30.00 inHg
Wind7.7 mph W
Humidity48%
Visibility6.2 mi
Dew point71°
Tue, 1192° / 73°0.11
92 °
Cave Colony, Tuesday, 11 August
Rain. High 92°, low 73°.
Pressure29.91 inHg
Wind3.8 mph N
Humidity52%
Visibility6.2 mi
Dew point68°
Wed, 1287° / 72°0
87 °
Cave Colony, Wednesday, 12 August
Overcast. High 87°, low 72°.
Pressure29.77 inHg
Wind13.7 mph W
Humidity58%
Visibility6.2 mi
Dew point68°
Thu, 1389° / 73°0.08
89 °
Cave Colony, Thursday, 13 August
Light rain. High 89°, low 73°.
Pressure29.80 inHg
Wind14 mph NW
Humidity42%
Visibility—
Dew point61°
Fri, 1476° / 61°0
76 °
Cave Colony, Friday, 14 August
Overcast. High 76°, low 61°.
Pressure30.09 inHg
Wind7.6 mph W
Humidity39%
Visibility—
Dew point48°
Sat, 1580° / 59°0
80 °
Cave Colony, Saturday, 15 August
Clear. High 80°, low 59°.
Pressure30.15 inHg
Wind12 mph N
Humidity34%
Visibility—
Dew point48°
Sun, 1681° / 64°0
81 °
Cave Colony, Sunday, 16 August
Overcast. High 81°, low 64°.
Pressure30.18 inHg
Wind6.9 mph S
Humidity33%
Visibility—
Dew point48°
Mon, 1783° / 64°0
83 °
Cave Colony, Monday, 17 August
Overcast. High 83°, low 64°.
Pressure30.12 inHg
Wind12.1 mph SE
Humidity45%
Visibility—
Dew point58°
Tue, 1877° / 65°0.28
77 °
Cave Colony, Tuesday, 18 August
Rain. High 77°, low 65°.
Pressure30.06 inHg
Wind9.6 mph SE
Humidity61%
Visibility—
Dew point61°
Wed, 1980° / 68°0.04
80 °
Cave Colony, Wednesday, 19 August
Light rain. High 80°, low 68°.
Pressure29.94 inHg
Wind9.2 mph S
Humidity73%
Visibility—
Dew point65°
Thu, 2083° / 71°0.27
83 °
Cave Colony, Thursday, 20 August
Rain. High 83°, low 71°.
Pressure29.71 inHg
Wind17.2 mph W
Humidity39%
Visibility—
Dew point54°
Fri, 2179° / 64°0
79 °
Cave Colony, Friday, 21 August
Clear. High 79°, low 64°.
Pressure29.88 inHg
Wind15.5 mph NW
Humidity33%
Visibility—
Dew point46°
Sat, 2281° / 62°0
81 °
Cave Colony, Saturday, 22 August
Mostly clear. High 81°, low 62°.
Pressure30.06 inHg
Wind6.8 mph N
Humidity33%
Visibility—
Dew point47°
Sun, 2387° / 63°0.04
87 °
Cave Colony, Sunday, 23 August
Light rain. High 87°, low 63°.
Pressure30.00 inHg
Wind19.3 mph SW
Humidity48%
Visibility—
Dew point63°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2481° / 68°0.07
81 °
Cave Colony, Monday, 24 August
Climate normal for this date — 60-year average.
Average high81°
Average low68°
Average precipitation0.07 in
Chance of precipitation27%
Record high91° (2021)
Record low58° (2024)
Tue, 2582° / 69°0.06
82 °
Cave Colony, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high82°
Average low69°
Average precipitation0.06 in
Chance of precipitation22%
Record high94° (1968)
Record low61° (1994)
Wed, 2682° / 69°0.05
82 °
Cave Colony, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high82°
Average low69°
Average precipitation0.05 in
Chance of precipitation23%
Record high91° (1975)
Record low59° (1977)
Thu, 2782° / 70°0.14
82 °
Cave Colony, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high82°
Average low70°
Average precipitation0.14 in
Chance of precipitation30%
Record high92° (2020)
Record low58° (2025)
Fri, 2882° / 71°0.21
82 °
Cave Colony, Friday, 28 August
Climate normal for this date — 60-year average.
Average high82°
Average low71°
Average precipitation0.21 in
Chance of precipitation50%
Record high94° (2024)
Record low57° (2025)
Sat, 2982° / 70°0.09
82 °
Cave Colony, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high82°
Average low70°
Average precipitation0.09 in
Chance of precipitation35%
Record high92° (2018)
Record low55° (1982)
Sun, 3082° / 69°0.07
82 °
Cave Colony, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high82°
Average low69°
Average precipitation0.07 in
Chance of precipitation32%
Record high92° (1973)
Record low53° (1986)
Mon, 3181° / 69°0.08
81 °
Cave Colony, Monday, 31 August
Climate normal for this date — 60-year average.
Average high81°
Average low69°
Average precipitation0.08 in
Chance of precipitation25%
Record high91° (1973)
Record low55° (2025)
Tue, 0180° / 69°0.22
80 °
Cave Colony, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high80°
Average low69°
Average precipitation0.22 in
Chance of precipitation33%
Record high91° (1980)
Record low57° (1986)
Wed, 0280° / 68°0.12
80 °
Cave Colony, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high80°
Average low68°
Average precipitation0.12 in
Chance of precipitation37%
Record high92° (1980)
Record low55° (2023)
Thu, 0380° / 68°0.11
80 °
Cave Colony, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high80°
Average low68°
Average precipitation0.11 in
Chance of precipitation33%
Record high91° (1993)
Record low56° (1967)
Fri, 0481° / 68°0.1
81 °
Cave Colony, Friday, 4 September
Climate normal for this date — 60-year average.
Average high81°
Average low68°
Average precipitation0.1 in
Chance of precipitation25%
Record high92° (2023)
Record low57° (1997)
Sat, 0580° / 68°0.07
80 °
Cave Colony, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high80°
Average low68°
Average precipitation0.07 in
Chance of precipitation27%
Record high94° (2023)
Record low58° (1997)
Sun, 0680° / 68°0.18
80 °
Cave Colony, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high80°
Average low68°
Average precipitation0.18 in
Chance of precipitation37%
Record high95° (2023)
Record low58° (1962)
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 Cave Colony, 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 Cave Colony, 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.