Monthly outlook for East Hanover, NJ: average high 85.7°, average low 68.5°. That is 2.7° above the climate normal for August. Precipitation is expected on 6 days (about 1.1 inches), against a normal of 6 days and 2.2 inches. The warmest day looks like 11 August (90.3°), the coolest 20 August (64.6°).
85.7°/68.5°
Average high / low
+2.7°
Above normal
6 / 6
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
85.3°
81.6°
+2.1°
19 August – 28 August
86.3°
79.9°
+3.5°
29 August – 7 September
at normal
78.5°
—
August records over 66 years
99.1°2 August 2006All-time high
47.3°30 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Caldwell (5 mi).
Mon, 1087° / 71°0.28
87 °
East Hanover, Monday, 10 August
Heavy rain. High 87°, low 71°.
Pressure29.94 inHg
Wind5.9 mph SW
Humidity35%
Visibility6.2 mi
Dew point59°
Tue, 1190° / 72°0
90 °
East Hanover, Tuesday, 11 August
Overcast. High 90°, low 72°.
Pressure29.85 inHg
Wind6.4 mph NW
Humidity45%
Visibility6.2 mi
Dew point62°
Wed, 1287° / 69°0.1
87 °
East Hanover, Wednesday, 12 August
Light rain. High 87°, low 69°.
Pressure29.77 inHg
Wind1.6 mph N
Humidity46%
Visibility6.2 mi
Dew point60°
Thu, 1385° / 66°0
85 °
East Hanover, Thursday, 13 August
Partly cloudy. High 85°, low 66°.
Pressure29.85 inHg
Wind11.1 mph NW
Humidity42%
Visibility6.2 mi
Dew point56°
Fri, 1471° / 65°0
71 °
East Hanover, Friday, 14 August
Overcast. High 71°, low 65°.
Pressure30.12 inHg
Wind5.5 mph NW
Humidity62%
Visibility—
Dew point55°
Sat, 1586° / 68°0
86 °
East Hanover, Saturday, 15 August
Partly cloudy. High 86°, low 68°.
Pressure30.15 inHg
Wind4.9 mph S
Humidity37%
Visibility—
Dew point54°
Sun, 1690° / 70°0.19
90 °
East Hanover, Sunday, 16 August
Light rain. High 90°, low 70°.
Pressure29.85 inHg
Wind13.7 mph SW
Humidity80%
Visibility—
Dew point71°
Mon, 1783° / 65°0
83 °
East Hanover, Monday, 17 August
Overcast. High 83°, low 65°.
Pressure29.94 inHg
Wind13.8 mph NW
Humidity34%
Visibility—
Dew point48°
Tue, 1885° / 65°0
85 °
East Hanover, Tuesday, 18 August
Overcast. High 85°, low 65°.
Pressure30.06 inHg
Wind9.6 mph SW
Humidity34%
Visibility—
Dew point52°
Wed, 1987° / 68°0.4
87 °
East Hanover, Wednesday, 19 August
Rain. High 87°, low 68°.
Pressure29.85 inHg
Wind8.8 mph W
Humidity59%
Visibility—
Dew point67°
Thu, 2087° / 65°0
87 °
East Hanover, Thursday, 20 August
Partly cloudy. High 87°, low 65°.
Pressure29.94 inHg
Wind7.2 mph SW
Humidity31%
Visibility—
Dew point50°
Fri, 2189° / 72°0.04
89 °
East Hanover, Friday, 21 August
Light rain. High 89°, low 72°.
Pressure29.74 inHg
Wind10.3 mph NW
Humidity52%
Visibility—
Dew point65°
Sat, 2280° / 71°0.04
80 °
East Hanover, Saturday, 22 August
Light rain. High 80°, low 71°.
Pressure29.91 inHg
Wind4.8 mph SE
Humidity59%
Visibility—
Dew point62°
Sun, 2385° / 68°0
85 °
East Hanover, Sunday, 23 August
Mostly clear. High 85°, low 68°.
Pressure30.03 inHg
Wind9.9 mph SE
Humidity47%
Visibility—
Dew point60°
Mon, 2490° / 70°0.03
90 °
East Hanover, Monday, 24 August
Light rain. High 90°, low 70°.
Pressure29.94 inHg
Wind9.9 mph W
Humidity42%
Visibility—
Dew point62°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2581° / 63°0.07
81 °
East Hanover, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high81°
Average low63°
Average precipitation0.07 in
Chance of precipitation23%
Record high94° (1968)
Record low51° (1971)
Wed, 2681° / 64°0.08
81 °
East Hanover, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.08 in
Chance of precipitation25%
Record high91° (1993)
Record low54° (1960)
Thu, 2781° / 65°0.16
81 °
East Hanover, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.16 in
Chance of precipitation32%
Record high94° (2020)
Record low56° (1969)
Fri, 2880° / 66°0.22
80 °
East Hanover, Friday, 28 August
Climate normal for this date — 60-year average.
Average high80°
Average low66°
Average precipitation0.22 in
Chance of precipitation40%
Record high94° (2018)
Record low55° (1968)
Sat, 2980° / 65°0.15
80 °
East Hanover, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high80°
Average low65°
Average precipitation0.15 in
Chance of precipitation37%
Record high93° (2018)
Record low49° (1982)
Sun, 3080° / 64°0.06
80 °
East Hanover, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.06 in
Chance of precipitation28%
Record high92° (1973)
Record low47° (1986)
Mon, 3179° / 64°0.06
79 °
East Hanover, Monday, 31 August
Climate normal for this date — 60-year average.
Average high79°
Average low64°
Average precipitation0.06 in
Chance of precipitation18%
Record high92° (2010)
Record low49° (1986)
Tue, 0178° / 63°0.13
78 °
East Hanover, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high78°
Average low63°
Average precipitation0.13 in
Chance of precipitation32%
Record high93° (2010)
Record low53° (2017)
Wed, 0278° / 62°0.17
78 °
East Hanover, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.17 in
Chance of precipitation40%
Record high94° (1980)
Record low51° (2017)
Thu, 0378° / 62°0.13
78 °
East Hanover, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.13 in
Chance of precipitation37%
Record high91° (2015)
Record low49° (1967)
Fri, 0479° / 63°0.12
79 °
East Hanover, Friday, 4 September
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.12 in
Chance of precipitation32%
Record high91° (2023)
Record low52° (1997)
Sat, 0578° / 63°0.06
78 °
East Hanover, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high78°
Average low63°
Average precipitation0.06 in
Chance of precipitation22%
Record high95° (2023)
Record low52° (1987)
Sun, 0677° / 62°0.2
77 °
East Hanover, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high77°
Average low62°
Average precipitation0.2 in
Chance of precipitation30%
Record high95° (2018)
Record low50° (1984)
Mon, 0778° / 61°0.13
78 °
East Hanover, Monday, 7 September
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.13 in
Chance of precipitation35%
Record high93° (2023)
Record low48° (2000)
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 East Hanover, 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 East Hanover, 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.