Monthly outlook for Rock Hill Beach, MD: average high 83.3°, average low 70.9°. That is 0.7° above the climate normal for August. Precipitation is expected on 7 days (about 1.6 inches), against a normal of 6 days and 2.1 inches. The warmest day looks like 24 August (92.1°), the coolest 22 August (65°).
83.3°/70.9°
Average high / low
+0.7°
Above normal
7 / 6
Wet days / normal
1.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
83.4°
82.7°
+0.3°
19 August – 28 August
83.2°
81.4°
+1°
29 August – 7 September
at normal
80.4°
—
August records over 66 years
96.1°15 August 1988All-time high
54.1°29 August 1982All-time low
Climate normals and records are computed from the nearest reference point — Green Haven (1 mi).
Mon, 1089° / 74°0.04
89 °
Rock Hill Beach, Monday, 10 August
Light rain. High 89°, low 74°.
Pressure30.00 inHg
Wind4.2 mph SE
Humidity41%
Visibility6.2 mi
Dew point62°
Tue, 1190° / 73°0.28
90 °
Rock Hill Beach, Tuesday, 11 August
Rain. High 90°, low 73°.
Pressure29.91 inHg
Wind1.3 mph NW
Humidity52%
Visibility6.2 mi
Dew point68°
Wed, 1290° / 74°0.11
90 °
Rock Hill Beach, Wednesday, 12 August
Light rain. High 90°, low 74°.
Pressure29.77 inHg
Wind10 mph W
Humidity62%
Visibility6.2 mi
Dew point67°
Thu, 1387° / 75°0.02
87 °
Rock Hill Beach, Thursday, 13 August
Light rain. High 87°, low 75°.
Pressure29.83 inHg
Wind15.1 mph NW
Humidity37%
Visibility—
Dew point56°
Fri, 1478° / 66°0
78 °
Rock Hill Beach, Friday, 14 August
Overcast. High 78°, low 66°.
Pressure30.09 inHg
Wind11.6 mph N
Humidity42%
Visibility—
Dew point48°
Sat, 1582° / 66°0
82 °
Rock Hill Beach, Saturday, 15 August
Clear. High 82°, low 66°.
Pressure30.15 inHg
Wind11.1 mph N
Humidity33%
Visibility—
Dew point48°
Sun, 1679° / 68°0
79 °
Rock Hill Beach, Sunday, 16 August
Overcast. High 79°, low 68°.
Pressure30.18 inHg
Wind9.1 mph SE
Humidity38%
Visibility—
Dew point49°
Mon, 1778° / 72°0.04
78 °
Rock Hill Beach, Monday, 17 August
Light rain. High 78°, low 72°.
Pressure30.09 inHg
Wind12.1 mph S
Humidity63%
Visibility—
Dew point62°
Tue, 1873° / 70°0.57
73 °
Rock Hill Beach, Tuesday, 18 August
Rain. High 73°, low 70°.
Pressure30.03 inHg
Wind11.1 mph S
Humidity84%
Visibility—
Dew point68°
Wed, 1980° / 71°0.33
80 °
Rock Hill Beach, Wednesday, 19 August
Light rain. High 80°, low 71°.
Pressure29.91 inHg
Wind12.4 mph S
Humidity85%
Visibility—
Dew point69°
Thu, 2081° / 71°0.12
81 °
Rock Hill Beach, Thursday, 20 August
Light rain. High 81°, low 71°.
Pressure29.71 inHg
Wind16.1 mph NW
Humidity41%
Visibility—
Dew point54°
Fri, 2182° / 67°0
82 °
Rock Hill Beach, Friday, 21 August
Clear. High 82°, low 67°.
Pressure29.88 inHg
Wind12.2 mph NW
Humidity32%
Visibility—
Dew point46°
Sat, 2279° / 65°0
79 °
Rock Hill Beach, Saturday, 22 August
Partly cloudy. High 79°, low 65°.
Pressure30.06 inHg
Wind10.6 mph SE
Humidity33%
Visibility—
Dew point46°
Sun, 2384° / 73°0.03
84 °
Rock Hill Beach, Sunday, 23 August
Light rain. High 84°, low 73°.
Pressure29.97 inHg
Wind14.5 mph SW
Humidity71%
Visibility—
Dew point68°
Mon, 2492° / 74°0
92 °
Rock Hill Beach, Monday, 24 August
Clear. High 92°, low 74°.
Pressure29.91 inHg
Wind11.7 mph NW
Humidity38%
Visibility—
Dew point61°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2582° / 69°0.07
82 °
Rock Hill Beach, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high82°
Average low69°
Average precipitation0.07 in
Chance of precipitation17%
Record high92° (1968)
Record low60° (1963)
Wed, 2682° / 70°0.06
82 °
Rock Hill Beach, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high82°
Average low70°
Average precipitation0.06 in
Chance of precipitation18%
Record high91° (1975)
Record low61° (1963)
Thu, 2782° / 71°0.16
82 °
Rock Hill Beach, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high82°
Average low71°
Average precipitation0.16 in
Chance of precipitation38%
Record high92° (2020)
Record low61° (1969)
Fri, 2882° / 71°0.17
82 °
Rock Hill Beach, Friday, 28 August
Climate normal for this date — 60-year average.
Average high82°
Average low71°
Average precipitation0.17 in
Chance of precipitation45%
Record high94° (1973)
Record low60° (1986)
Sat, 2982° / 70°0.12
82 °
Rock Hill Beach, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high82°
Average low70°
Average precipitation0.12 in
Chance of precipitation32%
Record high91° (1973)
Record low54° (1982)
Sun, 3082° / 69°0.06
82 °
Rock Hill Beach, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high82°
Average low69°
Average precipitation0.06 in
Chance of precipitation25%
Record high91° (1973)
Record low56° (1986)
Mon, 3181° / 69°0.08
81 °
Rock Hill Beach, Monday, 31 August
Climate normal for this date — 60-year average.
Average high81°
Average low69°
Average precipitation0.08 in
Chance of precipitation27%
Record high91° (1973)
Record low58° (1976)
Tue, 0180° / 69°0.14
80 °
Rock Hill Beach, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high80°
Average low69°
Average precipitation0.14 in
Chance of precipitation27%
Record high91° (1980)
Record low58° (1967)
Wed, 0280° / 68°0.12
80 °
Rock Hill Beach, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high80°
Average low68°
Average precipitation0.12 in
Chance of precipitation42%
Record high91° (1980)
Record low58° (1967)
Thu, 0381° / 68°0.11
81 °
Rock Hill Beach, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high81°
Average low68°
Average precipitation0.11 in
Chance of precipitation25%
Record high94° (2023)
Record low56° (1967)
Fri, 0480° / 69°0.09
80 °
Rock Hill Beach, Friday, 4 September
Climate normal for this date — 60-year average.
Average high80°
Average low69°
Average precipitation0.09 in
Chance of precipitation32%
Record high97° (2023)
Record low56° (1997)
Sat, 0580° / 68°0.13
80 °
Rock Hill Beach, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high80°
Average low68°
Average precipitation0.13 in
Chance of precipitation30%
Record high94° (2023)
Record low57° (1997)
Sun, 0680° / 67°0.24
80 °
Rock Hill Beach, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high80°
Average low67°
Average precipitation0.24 in
Chance of precipitation35%
Record high95° (2023)
Record low56° (1962)
Mon, 0779° / 67°0.08
79 °
Rock Hill Beach, Monday, 7 September
Climate normal for this date — 60-year average.
Average high79°
Average low67°
Average precipitation0.08 in
Chance of precipitation25%
Record high90° (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 Rock Hill Beach, 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 Rock Hill Beach, 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.