Monthly outlook for Highland Park, NJ: average high 84.1°, average low 68°. That is 0.8° above the climate normal for August. Precipitation is expected on 4 days (about 1.6 inches), against a normal of 6 days and 2.3 inches. The warmest day looks like 10 August (94.3°), the coolest 22 August (60.7°).
84.1°/68°
Average high / low
+0.8°
Above normal
4 / 6
Wet days / normal
1.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
86.9°
83.4°
+1.9°
18 August – 27 August
79.3°
81.6°
-1.3°
28 August – 6 September
at normal
80.5°
—
August records over 66 years
100.9°9 August 2001All-time high
47.1°30 August 1986All-time low
Climate normals and records are computed from the nearest reference point — East Franklin (2 mi).
Sun, 0991° / 73°0.07
91 °
Highland Park, Sunday, 9 August
Light rain. High 91°, low 73°.
Pressure29.97 inHg
Wind8.2 mph W
Humidity42%
Visibility6.2 mi
Dew point64°
Mon, 1094° / 73°0
94 °
Highland Park, Monday, 10 August
Clear. High 94°, low 73°.
Pressure29.97 inHg
Wind8.1 mph W
Humidity36%
Visibility6.2 mi
Dew point61°
Tue, 1193° / 76°0
93 °
Highland Park, Tuesday, 11 August
Overcast. High 93°, low 76°.
Pressure29.88 inHg
Wind6.8 mph W
Humidity41%
Visibility6.2 mi
Dew point62°
Wed, 1285° / 76°0.02
85 °
Highland Park, Wednesday, 12 August
Light rain. High 85°, low 76°.
Pressure29.71 inHg
Wind9.6 mph W
Humidity56%
Visibility6.2 mi
Dew point66°
Thu, 1386° / 71°0.03
86 °
Highland Park, Thursday, 13 August
Light rain. High 86°, low 71°.
Pressure29.77 inHg
Wind13.6 mph W
Humidity35%
Visibility—
Dew point54°
Fri, 1480° / 64°0
80 °
Highland Park, Friday, 14 August
Clear. High 80°, low 64°.
Pressure30.00 inHg
Wind8.9 mph W
Humidity27%
Visibility—
Dew point41°
Sat, 1583° / 65°0
83 °
Highland Park, Saturday, 15 August
Clear. High 83°, low 65°.
Pressure30.09 inHg
Wind11.1 mph NW
Humidity29%
Visibility—
Dew point45°
Sun, 1684° / 64°0
84 °
Highland Park, Sunday, 16 August
Partly cloudy. High 84°, low 64°.
Pressure30.15 inHg
Wind6.3 mph NW
Humidity24%
Visibility—
Dew point40°
Mon, 1785° / 64°0.09
85 °
Highland Park, Monday, 17 August
Light rain. High 85°, low 64°.
Pressure30.09 inHg
Wind7.1 mph SE
Humidity38%
Visibility—
Dew point54°
Tue, 1873° / 66°0.16
73 °
Highland Park, Tuesday, 18 August
Light rain. High 73°, low 66°.
Pressure30.09 inHg
Wind5.4 mph S
Humidity77%
Visibility—
Dew point62°
Wed, 1980° / 68°0
80 °
Highland Park, Wednesday, 19 August
Light rain. High 80°, low 68°.
Pressure29.94 inHg
Wind8.8 mph S
Humidity73%
Visibility—
Dew point62°
Thu, 2081° / 68°1.17
81 °
Highland Park, Thursday, 20 August
Heavy rain. High 81°, low 68°.
Pressure29.62 inHg
Wind13.3 mph W
Humidity42%
Visibility—
Dew point55°
Fri, 2180° / 65°0
80 °
Highland Park, Friday, 21 August
Clear. High 80°, low 65°.
Pressure29.83 inHg
Wind11.2 mph NW
Humidity32%
Visibility—
Dew point45°
Sat, 2280° / 61°0
80 °
Highland Park, Saturday, 22 August
Clear. High 80°, low 61°.
Pressure30.03 inHg
Wind7.3 mph W
Humidity25%
Visibility—
Dew point39°
Sun, 2382° / 63°0.01
82 °
Highland Park, Sunday, 23 August
Light rain. High 82°, low 63°.
Pressure30.00 inHg
Wind8.9 mph S
Humidity56%
Visibility—
Dew point63°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2481° / 64°0.06
81 °
Highland Park, Monday, 24 August
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.06 in
Chance of precipitation22%
Record high93° (1998)
Record low53° (1971)
Tue, 2582° / 64°0.07
82 °
Highland Park, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high82°
Average low64°
Average precipitation0.07 in
Chance of precipitation22%
Record high97° (1968)
Record low53° (1971)
Wed, 2682° / 65°0.08
82 °
Highland Park, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.08 in
Chance of precipitation25%
Record high93° (1993)
Record low55° (1960)
Thu, 2783° / 66°0.15
83 °
Highland Park, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.15 in
Chance of precipitation35%
Record high94° (2020)
Record low57° (2017)
Fri, 2882° / 67°0.22
82 °
Highland Park, Friday, 28 August
Climate normal for this date — 60-year average.
Average high82°
Average low67°
Average precipitation0.22 in
Chance of precipitation43%
Record high96° (1973)
Record low56° (1986)
Sat, 2981° / 66°0.13
81 °
Highland Park, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high81°
Average low66°
Average precipitation0.13 in
Chance of precipitation32%
Record high94° (2010)
Record low49° (1986)
Sun, 3082° / 65°0.07
82 °
Highland Park, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.07 in
Chance of precipitation28%
Record high96° (1973)
Record low47° (1986)
Mon, 3181° / 65°0.07
81 °
Highland Park, Monday, 31 August
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.07 in
Chance of precipitation18%
Record high96° (1973)
Record low50° (1976)
Tue, 0180° / 64°0.13
80 °
Highland Park, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.13 in
Chance of precipitation32%
Record high94° (2010)
Record low53° (2017)
Wed, 0280° / 63°0.15
80 °
Highland Park, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.15 in
Chance of precipitation32%
Record high96° (1980)
Record low52° (2017)
Thu, 0380° / 64°0.13
80 °
Highland Park, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.13 in
Chance of precipitation35%
Record high93° (2015)
Record low49° (1967)
Fri, 0480° / 64°0.09
80 °
Highland Park, Friday, 4 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.09 in
Chance of precipitation28%
Record high93° (2023)
Record low52° (2024)
Sat, 0580° / 64°0.06
80 °
Highland Park, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.06 in
Chance of precipitation18%
Record high96° (2023)
Record low53° (1997)
Sun, 0679° / 63°0.2
79 °
Highland Park, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.2 in
Chance of precipitation33%
Record high96° (2023)
Record low51° (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 Highland Park, 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 Highland Park, 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.