Monthly outlook for Whitehall Terrace, SC: average high 88.9°, average low 78°. That is 2.2° above the climate normal for August. Precipitation is expected on 8 days (about 2.6 inches), against a normal of 10 days and 3.5 inches. The warmest day looks like 13 August (95.5°), the coolest 9 August (75.4°).
88.9°/78°
Average high / low
+2.2°
Above normal
8 / 10
Wet days / normal
2.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
89.4°
85.1°
+2.4°
19 August – 28 August
88.2°
84.5°
+2°
29 August – 7 September
at normal
83.1°
—
August records over 66 years
97.2°1 August 1999All-time high
64.2°29 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Isle of Palms (5 mi).
Mon, 1091° / 76°0.42
91 °
Whitehall Terrace, Monday, 10 August
Rain. High 91°, low 76°.
Pressure30.12 inHg
Wind6.6 mph SW
Humidity58%
Visibility6.2 mi
Dew point73°
Tue, 1194° / 80°0.05
94 °
Whitehall Terrace, Tuesday, 11 August
Light rain. High 94°, low 80°.
Pressure30.03 inHg
Wind6.6 mph SW
Humidity51%
Visibility6.2 mi
Dew point71°
Wed, 1295° / 80°0
95 °
Whitehall Terrace, Wednesday, 12 August
Light rain. High 95°, low 80°.
Pressure29.91 inHg
Wind9.6 mph W
Humidity49%
Visibility6.2 mi
Dew point71°
Thu, 1395° / 80°0.03
95 °
Whitehall Terrace, Thursday, 13 August
Light rain. High 95°, low 80°.
Pressure29.88 inHg
Wind19.6 mph SW
Humidity48%
Visibility—
Dew point71°
Fri, 1493° / 75°0.62
93 °
Whitehall Terrace, Friday, 14 August
Heavy rain. High 93°, low 75°.
Pressure30.03 inHg
Wind15.6 mph S
Humidity58%
Visibility—
Dew point74°
Sat, 1584° / 76°0.23
84 °
Whitehall Terrace, Saturday, 15 August
Light rain. High 84°, low 76°.
Pressure30.15 inHg
Wind9.5 mph E
Humidity73%
Visibility—
Dew point74°
Sun, 1683° / 77°0.31
83 °
Whitehall Terrace, Sunday, 16 August
Rain. High 83°, low 77°.
Pressure30.12 inHg
Wind9.9 mph E
Humidity67%
Visibility—
Dew point70°
Mon, 1781° / 77°0.7
81 °
Whitehall Terrace, Monday, 17 August
Rain. High 81°, low 77°.
Pressure30.00 inHg
Wind13.8 mph S
Humidity80%
Visibility—
Dew point73°
Tue, 1886° / 75°0.04
86 °
Whitehall Terrace, Tuesday, 18 August
Light rain. High 86°, low 75°.
Pressure29.94 inHg
Wind11.5 mph SW
Humidity65%
Visibility—
Dew point72°
Wed, 1986° / 79°0.15
86 °
Whitehall Terrace, Wednesday, 19 August
Light rain. High 86°, low 79°.
Pressure29.97 inHg
Wind9.9 mph SE
Humidity66%
Visibility—
Dew point73°
Thu, 2089° / 78°0
89 °
Whitehall Terrace, Thursday, 20 August
Clear. High 89°, low 78°.
Pressure29.97 inHg
Wind7 mph SE
Humidity56%
Visibility—
Dew point70°
Fri, 2189° / 79°0
89 °
Whitehall Terrace, Friday, 21 August
Partly cloudy. High 89°, low 79°.
Pressure29.97 inHg
Wind10.8 mph SE
Humidity58%
Visibility—
Dew point71°
Sat, 2290° / 80°0.01
90 °
Whitehall Terrace, Saturday, 22 August
Light rain. High 90°, low 80°.
Pressure29.91 inHg
Wind13.5 mph S
Humidity62%
Visibility—
Dew point74°
Sun, 2387° / 80°0.01
87 °
Whitehall Terrace, Sunday, 23 August
Light rain. High 87°, low 80°.
Pressure29.97 inHg
Wind9.9 mph S
Humidity65%
Visibility—
Dew point73°
Mon, 2488° / 80°0
88 °
Whitehall Terrace, Monday, 24 August
Light rain. High 88°, low 80°.
Pressure30.06 inHg
Wind11.4 mph S
Humidity63%
Visibility—
Dew point73°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2583° / 74°0.23
83 °
Whitehall Terrace, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high83°
Average low74°
Average precipitation0.23 in
Chance of precipitation62%
Record high94° (1968)
Record low67° (2012)
Wed, 2684° / 75°0.18
84 °
Whitehall Terrace, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high84°
Average low75°
Average precipitation0.18 in
Chance of precipitation55%
Record high91° (1968)
Record low66° (1994)
Thu, 2784° / 75°0.19
84 °
Whitehall Terrace, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high84°
Average low75°
Average precipitation0.19 in
Chance of precipitation63%
Record high93° (2011)
Record low66° (1966)
Fri, 2884° / 75°0.26
84 °
Whitehall Terrace, Friday, 28 August
Climate normal for this date — 60-year average.
Average high84°
Average low75°
Average precipitation0.26 in
Chance of precipitation67%
Record high90° (1987)
Record low65° (1968)
Sat, 2984° / 75°0.17
84 °
Whitehall Terrace, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high84°
Average low75°
Average precipitation0.17 in
Chance of precipitation47%
Record high91° (1983)
Record low64° (1986)
Sun, 3083° / 75°0.29
83 °
Whitehall Terrace, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high83°
Average low75°
Average precipitation0.29 in
Chance of precipitation62%
Record high91° (1998)
Record low67° (1986)
Mon, 3184° / 74°0.24
84 °
Whitehall Terrace, Monday, 31 August
Climate normal for this date — 60-year average.
Average high84°
Average low74°
Average precipitation0.24 in
Chance of precipitation52%
Record high90° (1970)
Record low65° (1999)
Tue, 0183° / 74°0.17
83 °
Whitehall Terrace, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high83°
Average low74°
Average precipitation0.17 in
Chance of precipitation53%
Record high90° (1994)
Record low64° (1999)
Wed, 0283° / 74°0.21
83 °
Whitehall Terrace, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high83°
Average low74°
Average precipitation0.21 in
Chance of precipitation57%
Record high89° (2020)
Record low65° (1967)
Thu, 0383° / 74°0.15
83 °
Whitehall Terrace, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high83°
Average low74°
Average precipitation0.15 in
Chance of precipitation42%
Record high91° (2020)
Record low65° (2025)
Fri, 0483° / 74°0.27
83 °
Whitehall Terrace, Friday, 4 September
Climate normal for this date — 60-year average.
Average high83°
Average low74°
Average precipitation0.27 in
Chance of precipitation43%
Record high93° (2020)
Record low66° (1994)
Sat, 0582° / 73°0.42
82 °
Whitehall Terrace, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high82°
Average low73°
Average precipitation0.42 in
Chance of precipitation58%
Record high90° (2020)
Record low65° (1994)
Sun, 0683° / 73°0.2
83 °
Whitehall Terrace, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high83°
Average low73°
Average precipitation0.2 in
Chance of precipitation58%
Record high92° (1983)
Record low62° (1997)
Mon, 0783° / 73°0.15
83 °
Whitehall Terrace, Monday, 7 September
Climate normal for this date — 60-year average.
Average high83°
Average low73°
Average precipitation0.15 in
Chance of precipitation50%
Record high91° (1983)
Record low66° (1972)
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 Whitehall Terrace, SC 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 Whitehall Terrace, SC 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.