Monthly outlook for Highland Lakes, NJ: average high 80.9°, average low 59.2°. That is 0.5° above the climate normal for August. Precipitation is expected on 4 days (about 0.6 inches), against a normal of 6 days and 2.2 inches. The warmest day looks like 23 August (90.1°), the coolest 16 August (47.9°).
80.9°/59.2°
Average high / low
+0.5°
Above normal
4 / 6
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
77.6°
80.8°
-1.8°
19 August – 28 August
86.5°
79.1°
+4.1°
29 August – 7 September
at normal
77.5°
—
August records over 66 years
99.3°2 August 2006All-time high
45.3°30 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Florida (12 mi).
Mon, 1082° / 66°0
82 °
Highland Lakes, Monday, 10 August
Overcast. High 82°, low 66°.
Pressure29.97 inHg
Wind7.3 mph SW
Humidity47%
Visibility6.2 mi
Dew point61°
Tue, 1183° / 64°0.2
83 °
Highland Lakes, Tuesday, 11 August
Rain. High 83°, low 64°.
Pressure29.85 inHg
Wind11.8 mph NW
Humidity46%
Visibility6.2 mi
Dew point58°
Wed, 1276° / 61°0
76 °
Highland Lakes, Wednesday, 12 August
Light rain. High 76°, low 61°.
Pressure29.77 inHg
Wind2.4 mph NE
Humidity56%
Visibility6.2 mi
Dew point58°
Thu, 1378° / 57°0.06
78 °
Highland Lakes, Thursday, 13 August
Light rain. High 78°, low 57°.
Pressure29.74 inHg
Wind13.2 mph NW
Humidity36%
Visibility—
Dew point47°
Fri, 1471° / 51°0
71 °
Highland Lakes, Friday, 14 August
Clear. High 71°, low 51°.
Pressure29.97 inHg
Wind14.4 mph NW
Humidity36%
Visibility—
Dew point41°
Sat, 1572° / 48°0
72 °
Highland Lakes, Saturday, 15 August
Clear. High 72°, low 48°.
Pressure30.06 inHg
Wind15.5 mph NW
Humidity36%
Visibility—
Dew point41°
Sun, 1675° / 48°0
75 °
Highland Lakes, Sunday, 16 August
Overcast. High 75°, low 48°.
Pressure30.12 inHg
Wind6.9 mph N
Humidity32%
Visibility—
Dew point41°
Mon, 1775° / 53°0
75 °
Highland Lakes, Monday, 17 August
Overcast. High 75°, low 53°.
Pressure30.00 inHg
Wind7.9 mph SW
Humidity40%
Visibility—
Dew point48°
Tue, 1881° / 54°0
81 °
Highland Lakes, Tuesday, 18 August
Mostly clear. High 81°, low 54°.
Pressure30.00 inHg
Wind3.9 mph NW
Humidity39%
Visibility—
Dew point51°
Wed, 1983° / 61°0
83 °
Highland Lakes, Wednesday, 19 August
Overcast. High 83°, low 61°.
Pressure30.09 inHg
Wind4.9 mph S
Humidity42%
Visibility—
Dew point55°
Thu, 2085° / 60°0
85 °
Highland Lakes, Thursday, 20 August
Mostly clear. High 85°, low 60°.
Pressure30.03 inHg
Wind6.6 mph SW
Humidity37%
Visibility—
Dew point54°
Fri, 2188° / 64°0.12
88 °
Highland Lakes, Friday, 21 August
Rain. High 88°, low 64°.
Pressure29.85 inHg
Wind11.4 mph SW
Humidity47%
Visibility—
Dew point63°
Sat, 2287° / 66°0
87 °
Highland Lakes, Saturday, 22 August
Mostly clear. High 87°, low 66°.
Pressure29.88 inHg
Wind8.3 mph NW
Humidity33%
Visibility—
Dew point53°
Sun, 2390° / 60°0.01
90 °
Highland Lakes, Sunday, 23 August
Light rain. High 90°, low 60°.
Pressure29.91 inHg
Wind7.1 mph S
Humidity30%
Visibility—
Dew point51°
Mon, 2485° / 66°0.17
85 °
Highland Lakes, Monday, 24 August
Light rain. High 85°, low 66°.
Pressure29.97 inHg
Wind9.1 mph NE
Humidity54%
Visibility—
Dew point64°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2580° / 61°0.09
80 °
Highland Lakes, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high80°
Average low61°
Average precipitation0.09 in
Chance of precipitation28%
Record high92° (1968)
Record low51° (1987)
Wed, 2680° / 61°0.08
80 °
Highland Lakes, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high80°
Average low61°
Average precipitation0.08 in
Chance of precipitation23%
Record high91° (1993)
Record low51° (1963)
Thu, 2780° / 63°0.2
80 °
Highland Lakes, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.2 in
Chance of precipitation37%
Record high94° (1993)
Record low52° (2017)
Fri, 2880° / 64°0.25
80 °
Highland Lakes, Friday, 28 August
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.25 in
Chance of precipitation38%
Record high93° (1993)
Record low51° (2025)
Sat, 2979° / 63°0.15
79 °
Highland Lakes, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.15 in
Chance of precipitation33%
Record high90° (1973)
Record low46° (1982)
Sun, 3079° / 62°0.08
79 °
Highland Lakes, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.08 in
Chance of precipitation27%
Record high92° (1973)
Record low45° (1986)
Mon, 3178° / 61°0.06
78 °
Highland Lakes, Monday, 31 August
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.06 in
Chance of precipitation25%
Record high92° (1973)
Record low46° (1965)
Tue, 0177° / 61°0.14
77 °
Highland Lakes, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.14 in
Chance of precipitation28%
Record high91° (2010)
Record low49° (2017)
Wed, 0277° / 60°0.14
77 °
Highland Lakes, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high77°
Average low60°
Average precipitation0.14 in
Chance of precipitation33%
Record high94° (2010)
Record low46° (2017)
Thu, 0378° / 60°0.11
78 °
Highland Lakes, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high78°
Average low60°
Average precipitation0.11 in
Chance of precipitation30%
Record high91° (2015)
Record low47° (1967)
Fri, 0477° / 61°0.14
77 °
Highland Lakes, Friday, 4 September
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.14 in
Chance of precipitation30%
Record high91° (1973)
Record low49° (1987)
Sat, 0577° / 61°0.09
77 °
Highland Lakes, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.09 in
Chance of precipitation28%
Record high91° (2023)
Record low49° (1974)
Sun, 0676° / 60°0.23
76 °
Highland Lakes, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.23 in
Chance of precipitation30%
Record high91° (2023)
Record low47° (1984)
Mon, 0777° / 59°0.14
77 °
Highland Lakes, Monday, 7 September
Climate normal for this date — 60-year average.
Average high77°
Average low59°
Average precipitation0.14 in
Chance of precipitation35%
Record high93° (2015)
Record low44° (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 Lakes, 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 Lakes, 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.