Monthly outlook for Holly Hill Harbor, MD: average high 84.2°, average low 69.7°. That is 0.8° above the climate normal for August. Precipitation is expected on 3 days (about 0.3 inches), against a normal of 6 days and 2.3 inches. The warmest day looks like 9 August (92.2°), the coolest 14 August (62.6°).
84.2°/69.7°
Average high / low
+0.8°
Above normal
3 / 6
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
83.9°
83.4°
+0.3°
19 August – 28 August
84.7°
82°
+1.5°
29 August – 7 September
at normal
81°
—
August records over 66 years
97.9°15 August 1988All-time high
54.7°29 August 1982All-time low
Climate normals and records are computed from the nearest reference point — Annapolis (5 mi).
Mon, 1091° / 76°0
91 °
Holly Hill Harbor, Monday, 10 August
Clear. High 91°, low 76°.
Pressure30.00 inHg
Wind2.9 mph S
Humidity39%
Visibility6.2 mi
Dew point62°
Tue, 1189° / 71°0.04
89 °
Holly Hill Harbor, Tuesday, 11 August
Light rain. High 89°, low 71°.
Pressure29.91 inHg
Wind8.1 mph NW
Humidity54%
Visibility6.2 mi
Dew point66°
Wed, 1287° / 74°0
87 °
Holly Hill Harbor, Wednesday, 12 August
Overcast. High 87°, low 74°.
Pressure29.83 inHg
Wind11.8 mph NW
Humidity59%
Visibility6.2 mi
Dew point67°
Thu, 1388° / 75°0
88 °
Holly Hill Harbor, Thursday, 13 August
Partly cloudy. High 88°, low 75°.
Pressure29.85 inHg
Wind13.3 mph NW
Humidity53%
Visibility6.2 mi
Dew point67°
Fri, 1474° / 63°0.11
74 °
Holly Hill Harbor, Friday, 14 August
Light rain. High 74°, low 63°.
Pressure30.09 inHg
Wind9.3 mph N
Humidity67%
Visibility—
Dew point57°
Sat, 1580° / 63°0
80 °
Holly Hill Harbor, Saturday, 15 August
Overcast. High 80°, low 63°.
Pressure30.18 inHg
Wind11.9 mph N
Humidity34%
Visibility—
Dew point46°
Sun, 1675° / 65°0.01
75 °
Holly Hill Harbor, Sunday, 16 August
Light rain. High 75°, low 65°.
Pressure30.18 inHg
Wind15.1 mph S
Humidity51%
Visibility—
Dew point55°
Mon, 1782° / 68°0.06
82 °
Holly Hill Harbor, Monday, 17 August
Light rain. High 82°, low 68°.
Pressure29.88 inHg
Wind16.8 mph S
Humidity54%
Visibility—
Dew point62°
Tue, 1881° / 69°0.01
81 °
Holly Hill Harbor, Tuesday, 18 August
Light rain. High 81°, low 69°.
Pressure29.97 inHg
Wind9.8 mph SE
Humidity43%
Visibility—
Dew point55°
Wed, 1982° / 71°0.11
82 °
Holly Hill Harbor, Wednesday, 19 August
Light rain. High 82°, low 71°.
Pressure29.83 inHg
Wind16.4 mph SE
Humidity63%
Visibility—
Dew point67°
Thu, 2087° / 68°0
87 °
Holly Hill Harbor, Thursday, 20 August
Clear. High 87°, low 68°.
Pressure29.74 inHg
Wind11.6 mph NW
Humidity47%
Visibility—
Dew point63°
Fri, 2180° / 69°0
80 °
Holly Hill Harbor, Friday, 21 August
Overcast. High 80°, low 69°.
Pressure29.88 inHg
Wind9.1 mph N
Humidity50%
Visibility—
Dew point56°
Sat, 2289° / 68°0
89 °
Holly Hill Harbor, Saturday, 22 August
Clear. High 89°, low 68°.
Pressure29.91 inHg
Wind19.9 mph S
Humidity49%
Visibility—
Dew point64°
Sun, 2390° / 76°0
90 °
Holly Hill Harbor, Sunday, 23 August
Light rain. High 90°, low 76°.
Pressure29.91 inHg
Wind17 mph SW
Humidity35%
Visibility—
Dew point57°
Mon, 2480° / 68°0
80 °
Holly Hill Harbor, Monday, 24 August
Clear. High 80°, low 68°.
Pressure30.15 inHg
Wind11.8 mph N
Humidity39%
Visibility—
Dew point51°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2582° / 69°0.07
82 °
Holly Hill Harbor, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high82°
Average low69°
Average precipitation0.07 in
Chance of precipitation18%
Record high93° (1968)
Record low61° (1977)
Wed, 2683° / 70°0.06
83 °
Holly Hill Harbor, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high83°
Average low70°
Average precipitation0.06 in
Chance of precipitation27%
Record high92° (1975)
Record low61° (1963)
Thu, 2783° / 70°0.17
83 °
Holly Hill Harbor, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high83°
Average low70°
Average precipitation0.17 in
Chance of precipitation38%
Record high92° (1987)
Record low59° (2025)
Fri, 2883° / 71°0.17
83 °
Holly Hill Harbor, Friday, 28 August
Climate normal for this date — 60-year average.
Average high83°
Average low71°
Average precipitation0.17 in
Chance of precipitation48%
Record high95° (1973)
Record low58° (2025)
Sat, 2982° / 70°0.12
82 °
Holly Hill Harbor, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high82°
Average low70°
Average precipitation0.12 in
Chance of precipitation30%
Record high92° (1973)
Record low55° (1982)
Sun, 3082° / 69°0.07
82 °
Holly Hill Harbor, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high82°
Average low69°
Average precipitation0.07 in
Chance of precipitation25%
Record high92° (1973)
Record low56° (1986)
Mon, 3182° / 69°0.09
82 °
Holly Hill Harbor, Monday, 31 August
Climate normal for this date — 60-year average.
Average high82°
Average low69°
Average precipitation0.09 in
Chance of precipitation28%
Record high92° (1973)
Record low58° (1986)
Tue, 0181° / 68°0.16
81 °
Holly Hill Harbor, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high81°
Average low68°
Average precipitation0.16 in
Chance of precipitation28%
Record high92° (1980)
Record low58° (2025)
Wed, 0281° / 68°0.13
81 °
Holly Hill Harbor, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high81°
Average low68°
Average precipitation0.13 in
Chance of precipitation38%
Record high92° (1980)
Record low58° (1967)
Thu, 0381° / 68°0.12
81 °
Holly Hill Harbor, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high81°
Average low68°
Average precipitation0.12 in
Chance of precipitation23%
Record high93° (2023)
Record low56° (1967)
Fri, 0481° / 68°0.09
81 °
Holly Hill Harbor, Friday, 4 September
Climate normal for this date — 60-year average.
Average high81°
Average low68°
Average precipitation0.09 in
Chance of precipitation28%
Record high96° (2023)
Record low56° (1997)
Sat, 0580° / 68°0.13
80 °
Holly Hill Harbor, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high80°
Average low68°
Average precipitation0.13 in
Chance of precipitation28%
Record high95° (2023)
Record low57° (1997)
Sun, 0680° / 67°0.22
80 °
Holly Hill Harbor, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high80°
Average low67°
Average precipitation0.22 in
Chance of precipitation33%
Record high94° (2023)
Record low56° (1962)
Mon, 0780° / 67°0.09
80 °
Holly Hill Harbor, Monday, 7 September
Climate normal for this date — 60-year average.
Average high80°
Average low67°
Average precipitation0.09 in
Chance of precipitation28%
Record high91° (1983)
Record low57° (1988)
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 Holly Hill Harbor, MD 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 Holly Hill Harbor, MD 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.