Monthly outlook for Mount Pleasant, SC: average high 76.3°, average low 63.9°. That is 1.5° above the climate normal for October. Precipitation is expected on 4 days (about 0.6 inches), against a normal of 4 days and 1.6 inches. The warmest day looks like 16 October (86.1°), the coolest 18 October (44.8°).
76.3°/63.9°
Average high / low
+1.5°
Above normal
4 / 4
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
76.8°
74.3°
+1.4°
21 October – 30 October
75.5°
71.8°
+2.1°
31 October – 9 November
at normal
69.5°
—
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).
Mon, 1283° / 66°0
83 °
Mount Pleasant, Monday, 12 October
Clear. High 83°, low 66°.
Pressure30.00 inHg
Wind6.6 mph NW
Humidity64%
Visibility6.2 mi
Dew point65°
Tue, 1383° / 66°0
83 °
Mount Pleasant, Tuesday, 13 October
Clear. High 83°, low 66°.
Pressure30.06 inHg
Wind3.7 mph N
Humidity55%
Visibility6.2 mi
Dew point64°
Wed, 1484° / 66°0
84 °
Mount Pleasant, Wednesday, 14 October
Clear. High 84°, low 66°.
Pressure30.09 inHg
Wind3.4 mph SW
Humidity58%
Visibility6.2 mi
Dew point66°
Thu, 1586° / 68°0
86 °
Mount Pleasant, Thursday, 15 October
Clear. High 86°, low 68°.
Pressure30.12 inHg
Wind3 mph W
Humidity64%
Visibility6.2 mi
Dew point68°
Fri, 1686° / 69°0
86 °
Mount Pleasant, Friday, 16 October
Clear. High 86°, low 69°.
Pressure29.97 inHg
Wind7.6 mph W
Humidity52%
Visibility—
Dew point64°
Sat, 1770° / 53°0
70 °
Mount Pleasant, Saturday, 17 October
Overcast. High 70°, low 53°.
Pressure30.24 inHg
Wind18.2 mph N
Humidity30%
Visibility—
Dew point31°
Sun, 1858° / 45°0
58 °
Mount Pleasant, Sunday, 18 October
Clear. High 58°, low 45°.
Pressure30.59 inHg
Wind16.7 mph NE
Humidity40%
Visibility—
Dew point31°
Mon, 1967° / 53°0.01
67 °
Mount Pleasant, Monday, 19 October
Light rain. High 67°, low 53°.
Pressure30.50 inHg
Wind15.9 mph NE
Humidity67%
Visibility—
Dew point53°
Tue, 2073° / 61°0.04
73 °
Mount Pleasant, Tuesday, 20 October
Light rain. High 73°, low 61°.
Pressure30.33 inHg
Wind17.3 mph NE
Humidity63%
Visibility—
Dew point58°
Wed, 2175° / 68°0.02
75 °
Mount Pleasant, Wednesday, 21 October
Light rain. High 75°, low 68°.
Pressure30.30 inHg
Wind20.6 mph NE
Humidity63%
Visibility—
Dew point60°
Thu, 2274° / 64°0.04
74 °
Mount Pleasant, Thursday, 22 October
Light rain. High 74°, low 64°.
Pressure30.30 inHg
Wind16.8 mph NE
Humidity56%
Visibility—
Dew point56°
Fri, 2374° / 64°0.02
74 °
Mount Pleasant, Friday, 23 October
Light rain. High 74°, low 64°.
Pressure30.15 inHg
Wind18.3 mph NE
Humidity69%
Visibility—
Dew point62°
Sat, 2480° / 69°0.06
80 °
Mount Pleasant, Saturday, 24 October
Light rain. High 80°, low 69°.
Pressure29.97 inHg
Wind19.4 mph NE
Humidity61%
Visibility—
Dew point64°
Sun, 2575° / 70°0.03
75 °
Mount Pleasant, Sunday, 25 October
Light rain. High 75°, low 70°.
Pressure29.77 inHg
Wind16.7 mph NE
Humidity86%
Visibility—
Dew point69°
Mon, 2675° / 70°0.03
75 °
Mount Pleasant, Monday, 26 October
Light rain. High 75°, low 70°.
Pressure29.80 inHg
Wind13.6 mph NE
Humidity83%
Visibility—
Dew point69°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2772° / 60°0.12
72 °
Mount Pleasant, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high72°
Average low60°
Average precipitation0.12 in
Chance of precipitation25%
Record high82° (2010)
Record low44° (1962)
Wed, 2871° / 60°0.12
71 °
Mount Pleasant, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high71°
Average low60°
Average precipitation0.12 in
Chance of precipitation22%
Record high81° (1984)
Record low43° (1976)
Thu, 2971° / 59°0.07
71 °
Mount Pleasant, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high71°
Average low59°
Average precipitation0.07 in
Chance of precipitation20%
Record high79° (1984)
Record low42° (2008)
Fri, 3070° / 58°0.21
70 °
Mount Pleasant, Friday, 30 October
Climate normal for this date — 60-year average.
Average high70°
Average low58°
Average precipitation0.21 in
Chance of precipitation23%
Record high80° (2016)
Record low42° (2017)
Sat, 3171° / 59°0.08
71 °
Mount Pleasant, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high71°
Average low59°
Average precipitation0.08 in
Chance of precipitation23%
Record high83° (1961)
Record low46° (2005)
Sun, 0172° / 60°0.1
72 °
Mount Pleasant, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high72°
Average low60°
Average precipitation0.1 in
Chance of precipitation23%
Record high83° (1961)
Record low42° (1993)
Mon, 0271° / 59°0.07
71 °
Mount Pleasant, Monday, 2 November
Climate normal for this date — 60-year average.
Average high71°
Average low59°
Average precipitation0.07 in
Chance of precipitation25%
Record high81° (1961)
Record low42° (2023)
Tue, 0370° / 58°0.06
70 °
Mount Pleasant, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high70°
Average low58°
Average precipitation0.06 in
Chance of precipitation18%
Record high81° (1972)
Record low40° (1966)
Wed, 0470° / 57°0.11
70 °
Mount Pleasant, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high70°
Average low57°
Average precipitation0.11 in
Chance of precipitation37%
Record high79° (2003)
Record low40° (1966)
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)
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.