Monthly outlook for Mount Pleasant, SC: average high 69.9°, average low 53°. That is 0.9° below the climate normal for October. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 4 days and 1.5 inches. The warmest day looks like 27 October (74.5°), the coolest 20 October (45°).
69.9°/53°
Average high / low
−0.9°
Below normal
0 / 4
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
20 October – 29 October
71.2°
72°
-0.4°
30 October – 8 November
67.8°
69.7°
-1.1°
9 November – 18 November
at normal
66.4°
—
October records over 66 years
90.3°5 October 1986All-time high
42.1°30 October 2017All-time low
Climate normals and records are computed from the nearest reference point — Isle of Palms (5 mi).
Wed, 2173° / 48°0
73 °
Mount Pleasant, Wednesday, 21 October
Clear. High 73°, low 48°.
Pressure30.15 inHg
Wind7.6 mph N
Humidity48%
Visibility6.2 mi
Dew point47°
Thu, 2273° / 49°0
73 °
Mount Pleasant, Thursday, 22 October
Clear. High 73°, low 49°.
Pressure30.12 inHg
Wind6.1 mph NE
Humidity38%
Visibility6.2 mi
Dew point42°
Fri, 2371° / 49°0
71 °
Mount Pleasant, Friday, 23 October
Clear. High 71°, low 49°.
Pressure30.21 inHg
Wind9.3 mph NE
Humidity48%
Visibility6.2 mi
Dew point47°
Sat, 2468° / 49°0
68 °
Mount Pleasant, Saturday, 24 October
Clear. High 68°, low 49°.
Pressure30.39 inHg
Wind10 mph NE
Humidity57%
Visibility6.2 mi
Dew point48°
Sun, 2574° / 55°0
74 °
Mount Pleasant, Sunday, 25 October
Partly cloudy. High 74°, low 55°.
Pressure30.36 inHg
Wind12.7 mph NE
Humidity51%
Visibility—
Dew point52°
Mon, 2673° / 59°0
73 °
Mount Pleasant, Monday, 26 October
Clear. High 73°, low 59°.
Pressure30.24 inHg
Wind13.1 mph E
Humidity64%
Visibility—
Dew point58°
Tue, 2775° / 64°0
75 °
Mount Pleasant, Tuesday, 27 October
Mostly clear. High 75°, low 64°.
Pressure30.15 inHg
Wind9.3 mph E
Humidity64%
Visibility—
Dew point60°
Wed, 2869° / 57°0
69 °
Mount Pleasant, Wednesday, 28 October
Partly cloudy. High 69°, low 57°.
Pressure30.18 inHg
Wind16.7 mph NE
Humidity42%
Visibility—
Dew point43°
Thu, 2964° / 52°0
64 °
Mount Pleasant, Thursday, 29 October
Overcast. High 64°, low 52°.
Pressure30.24 inHg
Wind11.2 mph NE
Humidity47%
Visibility—
Dew point42°
Fri, 3071° / 53°0
71 °
Mount Pleasant, Friday, 30 October
Partly cloudy. High 71°, low 53°.
Pressure30.09 inHg
Wind9 mph NW
Humidity30%
Visibility—
Dew point35°
Sat, 3159° / 49°0
59 °
Mount Pleasant, Saturday, 31 October
Overcast. High 59°, low 49°.
Pressure30.33 inHg
Wind16.2 mph N
Humidity41%
Visibility—
Dew point34°
Sun, 0169° / 52°0.02
69 °
Mount Pleasant, Sunday, 1 November
Light rain. High 69°, low 52°.
Pressure30.12 inHg
Wind12.5 mph N
Humidity62%
Visibility—
Dew point54°
Mon, 0266° / 50°0
66 °
Mount Pleasant, Monday, 2 November
Clear. High 66°, low 50°.
Pressure30.27 inHg
Wind11.4 mph E
Humidity51%
Visibility—
Dew point45°
Tue, 0368° / 57°0
68 °
Mount Pleasant, Tuesday, 3 November
Overcast. High 68°, low 57°.
Pressure30.30 inHg
Wind14.3 mph NE
Humidity65%
Visibility—
Dew point55°
Wed, 0474° / 60°0
74 °
Mount Pleasant, Wednesday, 4 November
Overcast. High 74°, low 60°.
Pressure30.18 inHg
Wind11 mph N
Humidity63%
Visibility—
Dew point59°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 0568° / 57°0.11
68 °
Mount Pleasant, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high68°
Average low57°
Average precipitation0.11 in
Chance of precipitation25%
Record high79° (2003)
Record low44° (1970)
Fri, 0668° / 57°0.09
68 °
Mount Pleasant, Friday, 6 November
Climate normal for this date — 60-year average.
Average high68°
Average low57°
Average precipitation0.09 in
Chance of precipitation17%
Record high79° (2024)
Record low42° (1976)
Sat, 0769° / 56°0.09
69 °
Mount Pleasant, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high69°
Average low56°
Average precipitation0.09 in
Chance of precipitation18%
Record high79° (2022)
Record low42° (2010)
Sun, 0868° / 55°0.06
68 °
Mount Pleasant, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high68°
Average low55°
Average precipitation0.06 in
Chance of precipitation23%
Record high79° (2024)
Record low42° (1967)
Mon, 0968° / 56°0.13
68 °
Mount Pleasant, Monday, 9 November
Climate normal for this date — 60-year average.
Average high68°
Average low56°
Average precipitation0.13 in
Chance of precipitation22%
Record high78° (1986)
Record low37° (1976)
Tue, 1069° / 56°0.11
69 °
Mount Pleasant, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high69°
Average low56°
Average precipitation0.11 in
Chance of precipitation28%
Record high78° (2020)
Record low41° (1991)
Wed, 1167° / 55°0.1
67 °
Mount Pleasant, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high67°
Average low55°
Average precipitation0.1 in
Chance of precipitation27%
Record high78° (2002)
Record low34° (2025)
Thu, 1267° / 54°0.11
67 °
Mount Pleasant, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high67°
Average low54°
Average precipitation0.11 in
Chance of precipitation27%
Record high78° (1986)
Record low40° (1987)
Fri, 1365° / 52°0.07
65 °
Mount Pleasant, Friday, 13 November
Climate normal for this date — 60-year average.
Average high65°
Average low52°
Average precipitation0.07 in
Chance of precipitation20%
Record high76° (1964)
Record low33° (2019)
Sat, 1465° / 52°0.04
65 °
Mount Pleasant, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high65°
Average low52°
Average precipitation0.04 in
Chance of precipitation20%
Record high77° (1993)
Record low39° (2013)
Sun, 1565° / 52°0.13
65 °
Mount Pleasant, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high65°
Average low52°
Average precipitation0.13 in
Chance of precipitation23%
Record high78° (1993)
Record low32° (1969)
Mon, 1666° / 53°0.07
66 °
Mount Pleasant, Monday, 16 November
Climate normal for this date — 60-year average.
Average high66°
Average low53°
Average precipitation0.07 in
Chance of precipitation20%
Record high79° (1993)
Record low38° (1969)
Tue, 1765° / 53°0.11
65 °
Mount Pleasant, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high65°
Average low53°
Average precipitation0.11 in
Chance of precipitation23%
Record high78° (1964)
Record low38° (1997)
Wed, 1866° / 53°0.05
66 °
Mount Pleasant, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high66°
Average low53°
Average precipitation0.05 in
Chance of precipitation17%
Record high79° (1978)
Record low37° (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 Mount Pleasant, 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 Mount Pleasant, 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.