Monthly outlook for Haddon Leigh, NJ: average high 83.8°, average low 69.3°. That is 0.3° above the climate normal for August. Precipitation is expected on 5 days (about 0.8 inches), against a normal of 6 days and 2.2 inches. The warmest day looks like 10 August (93.3°), the coolest 23 August (63°).
83.8°/69.3°
Average high / low
+0.3°
Above normal
5 / 6
Wet days / normal
0.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
86.1°
84.1°
+1.1°
18 August – 27 August
80°
82.5°
-1.4°
28 August – 6 September
at normal
81.6°
—
August records over 66 years
99°9 August 2001All-time high
49.6°29 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Collingswood (2 mi).
Sun, 0991° / 72°0.01
91 °
Haddon Leigh, Sunday, 9 August
Light rain. High 91°, low 72°.
Pressure29.97 inHg
Wind7.3 mph W
Humidity43%
Visibility6.2 mi
Dew point65°
Mon, 1093° / 75°0.03
93 °
Haddon Leigh, Monday, 10 August
Light rain. High 93°, low 75°.
Pressure30.00 inHg
Wind7.2 mph W
Humidity45%
Visibility6.2 mi
Dew point66°
Tue, 1190° / 74°0.07
90 °
Haddon Leigh, Tuesday, 11 August
Light rain. High 90°, low 74°.
Pressure29.91 inHg
Wind4.5 mph W
Humidity51%
Visibility6.2 mi
Dew point67°
Wed, 1284° / 73°0.35
84 °
Haddon Leigh, Wednesday, 12 August
Rain. High 84°, low 73°.
Pressure29.80 inHg
Wind8 mph W
Humidity63%
Visibility6.2 mi
Dew point66°
Thu, 1389° / 72°0.01
89 °
Haddon Leigh, Thursday, 13 August
Light rain. High 89°, low 72°.
Pressure29.77 inHg
Wind11.1 mph W
Humidity40%
Visibility—
Dew point60°
Fri, 1480° / 67°0.01
80 °
Haddon Leigh, Friday, 14 August
Light rain. High 80°, low 67°.
Pressure29.94 inHg
Wind10.2 mph N
Humidity32%
Visibility—
Dew point46°
Sat, 1580° / 64°0
80 °
Haddon Leigh, Saturday, 15 August
Clear. High 80°, low 64°.
Pressure30.15 inHg
Wind10.8 mph N
Humidity29%
Visibility—
Dew point42°
Sun, 1683° / 64°0
83 °
Haddon Leigh, Sunday, 16 August
Clear. High 83°, low 64°.
Pressure30.27 inHg
Wind7.7 mph SE
Humidity27%
Visibility—
Dew point44°
Mon, 1784° / 66°0
84 °
Haddon Leigh, Monday, 17 August
Partly cloudy. High 84°, low 66°.
Pressure30.15 inHg
Wind10.4 mph S
Humidity41%
Visibility—
Dew point56°
Tue, 1881° / 72°0.05
81 °
Haddon Leigh, Tuesday, 18 August
Light rain. High 81°, low 72°.
Pressure29.97 inHg
Wind10.5 mph SW
Humidity81%
Visibility—
Dew point69°
Wed, 1987° / 71°0
87 °
Haddon Leigh, Wednesday, 19 August
Light rain. High 87°, low 71°.
Pressure29.85 inHg
Wind9.2 mph NW
Humidity37%
Visibility—
Dew point56°
Thu, 2074° / 69°0
74 °
Haddon Leigh, Thursday, 20 August
Overcast. High 74°, low 69°.
Pressure29.97 inHg
Wind6 mph N
Humidity54%
Visibility—
Dew point56°
Fri, 2179° / 68°0.16
79 °
Haddon Leigh, Friday, 21 August
Light rain. High 79°, low 68°.
Pressure29.88 inHg
Wind11.4 mph S
Humidity68%
Visibility—
Dew point67°
Sat, 2284° / 68°0.07
84 °
Haddon Leigh, Saturday, 22 August
Light rain. High 84°, low 68°.
Pressure29.74 inHg
Wind8.8 mph NW
Humidity56%
Visibility—
Dew point63°
Sun, 2375° / 63°0
75 °
Haddon Leigh, Sunday, 23 August
Partly cloudy. High 75°, low 63°.
Pressure30.00 inHg
Wind14.4 mph NW
Humidity28%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2482° / 65°0.06
82 °
Haddon Leigh, Monday, 24 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.06 in
Chance of precipitation20%
Record high92° (1998)
Record low54° (1971)
Tue, 2583° / 65°0.06
83 °
Haddon Leigh, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high83°
Average low65°
Average precipitation0.06 in
Chance of precipitation15%
Record high96° (1968)
Record low54° (1987)
Wed, 2683° / 66°0.06
83 °
Haddon Leigh, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.06 in
Chance of precipitation25%
Record high92° (1993)
Record low55° (1977)
Thu, 2784° / 67°0.16
84 °
Haddon Leigh, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.16 in
Chance of precipitation35%
Record high92° (2020)
Record low56° (1963)
Fri, 2883° / 68°0.21
83 °
Haddon Leigh, Friday, 28 August
Climate normal for this date — 60-year average.
Average high83°
Average low68°
Average precipitation0.21 in
Chance of precipitation47%
Record high97° (2024)
Record low57° (1969)
Sat, 2982° / 67°0.11
82 °
Haddon Leigh, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high82°
Average low67°
Average precipitation0.11 in
Chance of precipitation32%
Record high94° (1973)
Record low50° (1986)
Sun, 3083° / 66°0.07
83 °
Haddon Leigh, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.07 in
Chance of precipitation30%
Record high95° (1973)
Record low51° (1986)
Mon, 3182° / 66°0.07
82 °
Haddon Leigh, Monday, 31 August
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.07 in
Chance of precipitation18%
Record high96° (2010)
Record low51° (1965)
Tue, 0181° / 65°0.13
81 °
Haddon Leigh, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.13 in
Chance of precipitation32%
Record high94° (2010)
Record low57° (2009)
Wed, 0281° / 65°0.11
81 °
Haddon Leigh, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.11 in
Chance of precipitation33%
Record high95° (1980)
Record low52° (1970)
Thu, 0381° / 65°0.11
81 °
Haddon Leigh, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.11 in
Chance of precipitation35%
Record high95° (2023)
Record low49° (1967)
Fri, 0481° / 65°0.07
81 °
Haddon Leigh, Friday, 4 September
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.07 in
Chance of precipitation28%
Record high98° (2023)
Record low53° (2024)
Sat, 0581° / 65°0.08
81 °
Haddon Leigh, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.08 in
Chance of precipitation22%
Record high96° (2023)
Record low53° (1997)
Sun, 0680° / 64°0.19
80 °
Haddon Leigh, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.19 in
Chance of precipitation32%
Record high97° (2023)
Record low52° (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 Haddon Leigh, 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 Haddon Leigh, 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.