Monthly outlook for Marlton Heights, NJ: average high 87.3°, average low 68.1°. That is 2.8° above the climate normal for August. Precipitation is expected on 5 days (about 0.5 inches), against a normal of 6 days and 2.1 inches. The warmest day looks like 23 August (96.8°), the coolest 16 August (58.7°).
87.3°/68.1°
Average high / low
+2.8°
Above normal
5 / 6
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
83.4°
83.1°
+0.2°
19 August – 28 August
93.9°
81.8°
+6.7°
29 August – 7 September
at normal
80.6°
—
August records over 66 years
98.1°28 August 2024All-time high
48.6°30 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Bellefonte (10 mi).
Mon, 1089° / 72°0
89 °
Marlton Heights, Monday, 10 August
Partly cloudy. High 89°, low 72°.
Pressure29.97 inHg
Wind5.7 mph W
Humidity40%
Visibility6.2 mi
Dew point63°
Tue, 1189° / 72°0.06
89 °
Marlton Heights, Tuesday, 11 August
Light rain. High 89°, low 72°.
Pressure29.88 inHg
Wind12.6 mph NW
Humidity49%
Visibility6.2 mi
Dew point64°
Wed, 1286° / 71°0.04
86 °
Marlton Heights, Wednesday, 12 August
Light rain. High 86°, low 71°.
Pressure29.77 inHg
Wind12.3 mph W
Humidity55%
Visibility6.2 mi
Dew point66°
Thu, 1385° / 71°0.06
85 °
Marlton Heights, Thursday, 13 August
Light rain. High 85°, low 71°.
Pressure29.77 inHg
Wind16.2 mph W
Humidity41%
Visibility—
Dew point57°
Fri, 1477° / 63°0
77 °
Marlton Heights, Friday, 14 August
Overcast. High 77°, low 63°.
Pressure30.03 inHg
Wind12.6 mph NW
Humidity37%
Visibility—
Dew point46°
Sat, 1579° / 60°0
79 °
Marlton Heights, Saturday, 15 August
Clear. High 79°, low 60°.
Pressure30.12 inHg
Wind12.6 mph NW
Humidity34%
Visibility—
Dew point45°
Sun, 1681° / 59°0
81 °
Marlton Heights, Sunday, 16 August
Overcast. High 81°, low 59°.
Pressure30.12 inHg
Wind7.1 mph NW
Humidity29%
Visibility—
Dew point43°
Mon, 1775° / 60°0
75 °
Marlton Heights, Monday, 17 August
Overcast. High 75°, low 60°.
Pressure30.03 inHg
Wind9 mph S
Humidity53%
Visibility—
Dew point55°
Tue, 1886° / 65°0.02
86 °
Marlton Heights, Tuesday, 18 August
Light rain. High 86°, low 65°.
Pressure30.00 inHg
Wind8.9 mph S
Humidity40%
Visibility—
Dew point57°
Wed, 1989° / 65°0
89 °
Marlton Heights, Wednesday, 19 August
Clear. High 89°, low 65°.
Pressure30.06 inHg
Wind8.7 mph S
Humidity33%
Visibility—
Dew point54°
Thu, 2092° / 67°0
92 °
Marlton Heights, Thursday, 20 August
Mostly clear. High 92°, low 67°.
Pressure30.00 inHg
Wind8.5 mph S
Humidity33%
Visibility—
Dew point56°
Fri, 2196° / 70°0.19
96 °
Marlton Heights, Friday, 21 August
Rain. High 96°, low 70°.
Pressure29.85 inHg
Wind12.4 mph SW
Humidity38%
Visibility—
Dew point64°
Sat, 2295° / 73°0.09
95 °
Marlton Heights, Saturday, 22 August
Light rain. High 95°, low 73°.
Pressure29.85 inHg
Wind10.3 mph NW
Humidity48%
Visibility—
Dew point70°
Sun, 2397° / 73°0
97 °
Marlton Heights, Sunday, 23 August
Clear. High 97°, low 73°.
Pressure29.91 inHg
Wind6.1 mph N
Humidity29%
Visibility—
Dew point56°
Mon, 2495° / 76°0
95 °
Marlton Heights, Monday, 24 August
Light rain. High 95°, low 76°.
Pressure29.91 inHg
Wind9.3 mph W
Humidity48%
Visibility—
Dew point70°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2583° / 65°0.06
83 °
Marlton Heights, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high83°
Average low65°
Average precipitation0.06 in
Chance of precipitation12%
Record high94° (1968)
Record low55° (1987)
Wed, 2683° / 66°0.06
83 °
Marlton Heights, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.06 in
Chance of precipitation22%
Record high92° (1975)
Record low56° (1977)
Thu, 2783° / 67°0.17
83 °
Marlton Heights, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.17 in
Chance of precipitation33%
Record high91° (1980)
Record low56° (1963)
Fri, 2883° / 67°0.24
83 °
Marlton Heights, Friday, 28 August
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.24 in
Chance of precipitation47%
Record high98° (2024)
Record low56° (2025)
Sat, 2982° / 67°0.12
82 °
Marlton Heights, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high82°
Average low67°
Average precipitation0.12 in
Chance of precipitation23%
Record high93° (1973)
Record low50° (1982)
Sun, 3082° / 66°0.08
82 °
Marlton Heights, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.08 in
Chance of precipitation27%
Record high94° (1973)
Record low49° (1986)
Mon, 3182° / 66°0.07
82 °
Marlton Heights, Monday, 31 August
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.07 in
Chance of precipitation18%
Record high95° (2010)
Record low51° (1986)
Tue, 0180° / 65°0.14
80 °
Marlton Heights, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high80°
Average low65°
Average precipitation0.14 in
Chance of precipitation30%
Record high93° (2010)
Record low55° (1967)
Wed, 0280° / 64°0.11
80 °
Marlton Heights, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.11 in
Chance of precipitation35%
Record high94° (1980)
Record low54° (1970)
Thu, 0381° / 65°0.13
81 °
Marlton Heights, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.13 in
Chance of precipitation35%
Record high93° (2023)
Record low50° (1967)
Fri, 0481° / 65°0.09
81 °
Marlton Heights, Friday, 4 September
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.09 in
Chance of precipitation25%
Record high96° (2023)
Record low53° (2024)
Sat, 0580° / 65°0.11
80 °
Marlton Heights, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high80°
Average low65°
Average precipitation0.11 in
Chance of precipitation32%
Record high97° (2023)
Record low53° (1997)
Sun, 0679° / 64°0.23
79 °
Marlton Heights, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high79°
Average low64°
Average precipitation0.23 in
Chance of precipitation30%
Record high97° (2023)
Record low52° (1984)
Mon, 0780° / 63°0.11
80 °
Marlton Heights, Monday, 7 September
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.11 in
Chance of precipitation28%
Record high91° (1998)
Record low49° (1984)
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 Marlton Heights, NJ 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 Marlton Heights, NJ 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.