Monthly outlook for Palmetto Fort, SC: average high 89.2°, average low 77.8°. That is 2.3° above the climate normal for August. Precipitation is expected on 13 days (about 5.8 inches), against a normal of 10 days and 3.5 inches. The warmest day looks like 12 August (95.4°), the coolest 18 August (73.8°).
89.2°/77.8°
Average high / low
+2.3°
Above normal
13 / 10
Wet days / normal
5.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
89.9°
85.1°
+2.7°
19 August – 28 August
88.1°
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 (4 mi).
Mon, 1090° / 76°0.28
90 °
Palmetto Fort, Monday, 10 August
Rain. High 90°, low 76°.
Pressure30.12 inHg
Wind8.1 mph SW
Humidity57%
Visibility6.2 mi
Dew point72°
Tue, 1194° / 76°0.1
94 °
Palmetto Fort, Tuesday, 11 August
Rain. High 94°, low 76°.
Pressure30.06 inHg
Wind6.4 mph W
Humidity55%
Visibility6.2 mi
Dew point72°
Wed, 1295° / 79°0
95 °
Palmetto Fort, Wednesday, 12 August
Clear. High 95°, low 79°.
Pressure29.94 inHg
Wind9 mph W
Humidity50%
Visibility6.2 mi
Dew point71°
Thu, 1395° / 79°0.03
95 °
Palmetto Fort, Thursday, 13 August
Light rain. High 95°, low 79°.
Pressure29.94 inHg
Wind4.1 mph W
Humidity56%
Visibility6.2 mi
Dew point73°
Fri, 1492° / 81°0.22
92 °
Palmetto Fort, Friday, 14 August
Rain. High 92°, low 81°.
Pressure30.03 inHg
Wind15.2 mph SW
Humidity58%
Visibility—
Dew point74°
Sat, 1586° / 81°0.38
86 °
Palmetto Fort, Saturday, 15 August
Rain. High 86°, low 81°.
Pressure30.15 inHg
Wind13 mph E
Humidity76%
Visibility—
Dew point76°
Sun, 1685° / 80°0.14
85 °
Palmetto Fort, Sunday, 16 August
Light rain. High 85°, low 80°.
Pressure30.12 inHg
Wind12.3 mph SE
Humidity67%
Visibility—
Dew point72°
Mon, 1786° / 80°0.16
86 °
Palmetto Fort, Monday, 17 August
Rain. High 86°, low 80°.
Pressure30.00 inHg
Wind17.4 mph S
Humidity73%
Visibility—
Dew point76°
Tue, 1888° / 74°3.52
88 °
Palmetto Fort, Tuesday, 18 August
Heavy rain. High 88°, low 74°.
Pressure29.94 inHg
Wind23.5 mph S
Humidity70%
Visibility—
Dew point76°
Wed, 1988° / 75°0.13
88 °
Palmetto Fort, Wednesday, 19 August
Light rain. High 88°, low 75°.
Pressure29.94 inHg
Wind15.1 mph SW
Humidity63%
Visibility—
Dew point72°
Thu, 2086° / 77°0.02
86 °
Palmetto Fort, Thursday, 20 August
Light rain. High 86°, low 77°.
Pressure29.85 inHg
Wind16 mph SW
Humidity65%
Visibility—
Dew point72°
Fri, 2191° / 75°0.07
91 °
Palmetto Fort, Friday, 21 August
Light rain. High 91°, low 75°.
Pressure29.88 inHg
Wind11.3 mph S
Humidity51%
Visibility—
Dew point68°
Sat, 2287° / 76°0.07
87 °
Palmetto Fort, Saturday, 22 August
Light rain. High 87°, low 76°.
Pressure30.03 inHg
Wind16.1 mph S
Humidity63%
Visibility—
Dew point71°
Sun, 2389° / 81°0.06
89 °
Palmetto Fort, Sunday, 23 August
Light rain. High 89°, low 81°.
Pressure30.03 inHg
Wind16.6 mph S
Humidity65%
Visibility—
Dew point75°
Mon, 2488° / 79°0.48
88 °
Palmetto Fort, Monday, 24 August
Rain. High 88°, low 79°.
Pressure30.06 inHg
Wind14.1 mph SW
Humidity65%
Visibility—
Dew point74°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2583° / 74°0.23
83 °
Palmetto Fort, 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 °
Palmetto Fort, 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 °
Palmetto Fort, 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 °
Palmetto Fort, 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 °
Palmetto Fort, 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 °
Palmetto Fort, 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 °
Palmetto Fort, 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 °
Palmetto Fort, 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 °
Palmetto Fort, 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 °
Palmetto Fort, 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 °
Palmetto Fort, 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 °
Palmetto Fort, 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 °
Palmetto Fort, 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 °
Palmetto Fort, 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 Palmetto Fort, 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 Palmetto Fort, 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.