As of 12:55 EDT

Weather in Hillsborough, NJ

89°Current weather

Hillsborough, Sunday, 9 August, 12:55

Partly cloudy. Feels like 100°. High 89°, low 72°.

Pressure29.97 inHg
Wind5 mph W
Humidity66%
Visibility6.2 mi
Dew point76°

Monthly outlook for Hillsborough, NJ: average high 83.1°, average low 63.1°. That is 0.3° above the climate normal for August. Precipitation is expected on 4 days (about 0.5 inches), against a normal of 5 days and 2.3 inches. The warmest day looks like 11 August (89.7°), the coolest 15 August (55°).

83.1°/63.1°
Average high / low
+0.3°
Above normal
4 / 5
Wet days / normal
0.5 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
9 August – 18 August82.1°83.3°-0.7°
19 August – 28 August84.7°81.7°+1.7°
29 August – 7 Septemberat normal80.3°

August records over 66 years

101.1°9 August 2001All-time high
47.3°30 August 1986All-time low

Climate normals and records are computed from the nearest reference point — Franklin Park (8 mi).

Mon, 1088° / 71°0.01Light rain
88 °Light rain

Hillsborough, Monday, 10 August

Light rain. High 88°, low 71°.

Pressure29.97 inHg
Wind6.9 mph W
Humidity45%
Visibility6.2 mi
Dew point63°
Tue, 1190° / 71°0Light rain
90 °Light rain

Hillsborough, Tuesday, 11 August

Light rain. High 90°, low 71°.

Pressure29.85 inHg
Wind9.1 mph NW
Humidity55%
Visibility6.2 mi
Dew point67°
Wed, 1286° / 65°0.03Light rain
86 °Light rain

Hillsborough, Wednesday, 12 August

Light rain. High 86°, low 65°.

Pressure29.83 inHg
Wind4 mph SW
Humidity53%
Visibility6.2 mi
Dew point61°
Thu, 1384° / 65°0.07Light rain
84 °Light rain

Hillsborough, Thursday, 13 August

Light rain. High 84°, low 65°.

Pressure29.77 inHg
Wind15.7 mph W
Humidity50%
Visibility6.2 mi
Dew point63°
Fri, 1478° / 60°0Overcast
78 °Overcast

Hillsborough, Friday, 14 August

Overcast. High 78°, low 60°.

Pressure30.00 inHg
Wind9.2 mph NW
Humidity35%
Visibility
Dew point46°
Sat, 1578° / 55°0Clear
78 °Clear

Hillsborough, Saturday, 15 August

Clear. High 78°, low 55°.

Pressure30.15 inHg
Wind13.2 mph N
Humidity34%
Visibility
Dew point44°
Sun, 1677° / 56°0Overcast
77 °Overcast

Hillsborough, Sunday, 16 August

Overcast. High 77°, low 56°.

Pressure30.15 inHg
Wind5.5 mph W
Humidity37%
Visibility
Dew point47°
Mon, 1768° / 62°0.09Light rain
68 °Light rain

Hillsborough, Monday, 17 August

Light rain. High 68°, low 62°.

Pressure29.91 inHg
Wind8.5 mph NW
Humidity96%
Visibility
Dew point66°
Tue, 1883° / 58°0Overcast
83 °Overcast

Hillsborough, Tuesday, 18 August

Overcast. High 83°, low 58°.

Pressure29.94 inHg
Wind6.3 mph N
Humidity36%
Visibility
Dew point50°
Wed, 1986° / 62°0.03Light rain
86 °Light rain

Hillsborough, Wednesday, 19 August

Light rain. High 86°, low 62°.

Pressure29.85 inHg
Wind12.1 mph SE
Humidity38%
Visibility
Dew point55°
Thu, 2084° / 65°0.03Light rain
84 °Light rain

Hillsborough, Thursday, 20 August

Light rain. High 84°, low 65°.

Pressure29.71 inHg
Wind9.9 mph N
Humidity55%
Visibility
Dew point64°
Fri, 2183° / 57°0Mostly clear
83 °Mostly clear

Hillsborough, Friday, 21 August

Mostly clear. High 83°, low 57°.

Pressure29.85 inHg
Wind6.7 mph W
Humidity35%
Visibility
Dew point49°
Sat, 2289° / 61°0Clear
89 °Clear

Hillsborough, Saturday, 22 August

Clear. High 89°, low 61°.

Pressure29.91 inHg
Wind12.7 mph S
Humidity35%
Visibility
Dew point55°
Sun, 2386° / 70°0.2Rain
86 °Rain

Hillsborough, Sunday, 23 August

Rain. High 86°, low 70°.

Pressure29.85 inHg
Wind17.9 mph W
Humidity39%
Visibility
Dew point57°
Mon, 2480° / 59°0Clear
80 °Clear

Hillsborough, Monday, 24 August

Clear. High 80°, low 59°.

Pressure30.15 inHg
Wind7.4 mph NW
Humidity31%
Visibility
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2582° / 65°0.07Climate normal
82 °Climate normal

Hillsborough, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high82°
Average low65°
Average precipitation0.07 in
Chance of precipitation22%
Record high97° (1968)
Record low53° (1971)
Wed, 2683° / 65°0.08Climate normal
83 °Climate normal

Hillsborough, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high83°
Average low65°
Average precipitation0.08 in
Chance of precipitation25%
Record high93° (1993)
Record low56° (1960)
Thu, 2783° / 66°0.15Climate normal
83 °Climate normal

Hillsborough, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high83°
Average low66°
Average precipitation0.15 in
Chance of precipitation33%
Record high94° (2020)
Record low57° (2017)
Fri, 2882° / 67°0.22Climate normal
82 °Climate normal

Hillsborough, Friday, 28 August

Climate normal for this date — 60-year average.

Average high82°
Average low67°
Average precipitation0.22 in
Chance of precipitation42%
Record high96° (1973)
Record low56° (2025)
Sat, 2981° / 66°0.12Climate normal
81 °Climate normal

Hillsborough, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high81°
Average low66°
Average precipitation0.12 in
Chance of precipitation30%
Record high94° (2010)
Record low49° (1986)
Sun, 3082° / 65°0.07Climate normal
82 °Climate normal

Hillsborough, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high82°
Average low65°
Average precipitation0.07 in
Chance of precipitation27%
Record high96° (1973)
Record low47° (1986)
Mon, 3182° / 65°0.07Climate normal
82 °Climate normal

Hillsborough, Monday, 31 August

Climate normal for this date — 60-year average.

Average high82°
Average low65°
Average precipitation0.07 in
Chance of precipitation18%
Record high95° (1973)
Record low51° (1976)
Tue, 0180° / 64°0.13Climate normal
80 °Climate normal

Hillsborough, 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 low54° (2017)
Wed, 0280° / 64°0.15Climate normal
80 °Climate normal

Hillsborough, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high80°
Average low64°
Average precipitation0.15 in
Chance of precipitation33%
Record high96° (1980)
Record low52° (2017)
Thu, 0380° / 64°0.13Climate normal
80 °Climate normal

Hillsborough, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high80°
Average low64°
Average precipitation0.13 in
Chance of precipitation35%
Record high92° (1993)
Record low49° (1967)
Fri, 0480° / 64°0.09Climate normal
80 °Climate normal

Hillsborough, Friday, 4 September

Climate normal for this date — 60-year average.

Average high80°
Average low64°
Average precipitation0.09 in
Chance of precipitation25%
Record high94° (2023)
Record low53° (1997)
Sat, 0580° / 64°0.06Climate normal
80 °Climate normal

Hillsborough, 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°0.2Climate normal
79 °Climate normal

Hillsborough, 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)
Mon, 0780° / 63°0.11Climate normal
80 °Climate normal

Hillsborough, Monday, 7 September

Climate normal for this date — 60-year average.

Average high80°
Average low63°
Average precipitation0.11 in
Chance of precipitation32%
Record high94° (2023)
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 Hillsborough, 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 Hillsborough, 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.