Monthly outlook for Three Trees, SC: average high 90.1°, average low 77.3°. That is 2.3° above the climate normal for August. Precipitation is expected on 11 days (about 2.7 inches), against a normal of 10 days and 3.3 inches. The warmest day looks like 12 August (97.1°), the coolest 9 August (74.3°).
90.1°/77.3°
Average high / low
+2.3°
Above normal
11 / 10
Wet days / normal
2.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
90.5°
85.8°
+2.6°
18 August – 27 August
89.3°
85.4°
+2.2°
28 August – 6 September
at normal
83.9°
—
August records over 66 years
97.9°1 August 1999All-time high
63.3°29 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Charleston (6 mi).
Sun, 0992° / 74°0.1
92 °
Three Trees, Sunday, 9 August
Rain. High 92°, low 74°.
Pressure30.12 inHg
Wind6.5 mph SE
Humidity65%
Visibility6.2 mi
Dew point73°
Mon, 1092° / 76°0.38
92 °
Three Trees, Monday, 10 August
Rain. High 92°, low 76°.
Pressure30.12 inHg
Wind7.5 mph SW
Humidity57%
Visibility6.2 mi
Dew point73°
Tue, 1195° / 79°0.07
95 °
Three Trees, Tuesday, 11 August
Light rain. High 95°, low 79°.
Pressure30.06 inHg
Wind8.1 mph SW
Humidity49%
Visibility6.2 mi
Dew point70°
Wed, 1297° / 80°0.04
97 °
Three Trees, Wednesday, 12 August
Light rain. High 97°, low 80°.
Pressure29.94 inHg
Wind11.3 mph W
Humidity47%
Visibility6.2 mi
Dew point70°
Thu, 1396° / 80°0.01
96 °
Three Trees, Thursday, 13 August
Light rain. High 96°, low 80°.
Pressure29.91 inHg
Wind16.4 mph SW
Humidity46%
Visibility—
Dew point70°
Fri, 1495° / 77°0.06
95 °
Three Trees, Friday, 14 August
Light rain. High 95°, low 77°.
Pressure29.97 inHg
Wind18.9 mph SW
Humidity47%
Visibility—
Dew point70°
Sat, 1584° / 77°0.29
84 °
Three Trees, Saturday, 15 August
Rain. High 84°, low 77°.
Pressure30.12 inHg
Wind9.6 mph E
Humidity67%
Visibility—
Dew point71°
Sun, 1684° / 78°0.02
84 °
Three Trees, Sunday, 16 August
Light rain. High 84°, low 78°.
Pressure30.24 inHg
Wind15.8 mph E
Humidity55%
Visibility—
Dew point66°
Mon, 1784° / 77°0
84 °
Three Trees, Monday, 17 August
Partly cloudy. High 84°, low 77°.
Pressure30.21 inHg
Wind11.7 mph E
Humidity55%
Visibility—
Dew point65°
Tue, 1885° / 76°0
85 °
Three Trees, Tuesday, 18 August
Clear. High 85°, low 76°.
Pressure30.09 inHg
Wind11.3 mph S
Humidity54%
Visibility—
Dew point66°
Wed, 1984° / 76°0.52
84 °
Three Trees, Wednesday, 19 August
Rain. High 84°, low 76°.
Pressure29.94 inHg
Wind9.9 mph SW
Humidity93%
Visibility—
Dew point74°
Thu, 2090° / 78°0.06
90 °
Three Trees, Thursday, 20 August
Light rain. High 90°, low 78°.
Pressure29.94 inHg
Wind11.1 mph S
Humidity59%
Visibility—
Dew point72°
Fri, 2191° / 78°0.78
91 °
Three Trees, Friday, 21 August
Heavy rain. High 91°, low 78°.
Pressure29.85 inHg
Wind16.6 mph S
Humidity61%
Visibility—
Dew point74°
Sat, 2295° / 77°0.02
95 °
Three Trees, Saturday, 22 August
Light rain. High 95°, low 77°.
Pressure29.83 inHg
Wind16.4 mph SW
Humidity49%
Visibility—
Dew point71°
Sun, 2390° / 78°0.28
90 °
Three Trees, Sunday, 23 August
Light rain. High 90°, low 78°.
Pressure29.88 inHg
Wind17.2 mph E
Humidity58%
Visibility—
Dew point72°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2484° / 75°0.25
84 °
Three Trees, Monday, 24 August
Climate normal for this date — 60-year average.
Average high84°
Average low75°
Average precipitation0.25 in
Chance of precipitation70%
Record high96° (1968)
Record low69° (1981)
Tue, 2584° / 74°0.22
84 °
Three Trees, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high84°
Average low74°
Average precipitation0.22 in
Chance of precipitation60%
Record high95° (1968)
Record low66° (1981)
Wed, 2685° / 74°0.17
85 °
Three Trees, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high85°
Average low74°
Average precipitation0.17 in
Chance of precipitation58%
Record high91° (1965)
Record low65° (1994)
Thu, 2785° / 74°0.18
85 °
Three Trees, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high85°
Average low74°
Average precipitation0.18 in
Chance of precipitation62%
Record high95° (2011)
Record low66° (1966)
Fri, 2885° / 74°0.28
85 °
Three Trees, Friday, 28 August
Climate normal for this date — 60-year average.
Average high85°
Average low74°
Average precipitation0.28 in
Chance of precipitation65%
Record high91° (1998)
Record low65° (1968)
Sat, 2984° / 74°0.18
84 °
Three Trees, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high84°
Average low74°
Average precipitation0.18 in
Chance of precipitation48%
Record high91° (1983)
Record low63° (1986)
Sun, 3084° / 74°0.28
84 °
Three Trees, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high84°
Average low74°
Average precipitation0.28 in
Chance of precipitation62%
Record high93° (1998)
Record low65° (1986)
Mon, 3184° / 74°0.22
84 °
Three Trees, Monday, 31 August
Climate normal for this date — 60-year average.
Average high84°
Average low74°
Average precipitation0.22 in
Chance of precipitation52%
Record high91° (1970)
Record low64° (1999)
Tue, 0184° / 74°0.16
84 °
Three Trees, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high84°
Average low74°
Average precipitation0.16 in
Chance of precipitation53%
Record high91° (1970)
Record low63° (1999)
Wed, 0283° / 74°0.19
83 °
Three Trees, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high83°
Average low74°
Average precipitation0.19 in
Chance of precipitation58%
Record high91° (2020)
Record low65° (1967)
Thu, 0384° / 73°0.15
84 °
Three Trees, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high84°
Average low73°
Average precipitation0.15 in
Chance of precipitation43%
Record high93° (2020)
Record low64° (2025)
Fri, 0484° / 73°0.21
84 °
Three Trees, Friday, 4 September
Climate normal for this date — 60-year average.
Average high84°
Average low73°
Average precipitation0.21 in
Chance of precipitation47%
Record high95° (2020)
Record low65° (2023)
Sat, 0583° / 73°0.37
83 °
Three Trees, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high83°
Average low73°
Average precipitation0.37 in
Chance of precipitation57%
Record high91° (1999)
Record low64° (1997)
Sun, 0683° / 73°0.19
83 °
Three Trees, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high83°
Average low73°
Average precipitation0.19 in
Chance of precipitation60%
Record high92° (2023)
Record low62° (1997)
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 Three Trees, 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 Three Trees, 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.