As of 20:58 EDT

Weather in Allentown, NJ

78°Current weather

Allentown, Saturday, 8 August, 20:58

Overcast. Feels like 79°. High 87°, low 71°.

Pressure29.94 inHg
Wind6.2 mph SW
Humidity76%
Visibility6.2 mi
Dew point69°

Monthly outlook for Allentown, NJ: average high 83.7°, average low 65.3°. That is 0.7° above the climate normal for August. Precipitation is expected on 4 days (about 1.4 inches), against a normal of 6 days and 2.4 inches. The warmest day looks like 10 August (94.3°), the coolest 22 August (55.9°).

83.7°/65.3°
Average high / low
+0.7°
Above normal
4 / 6
Wet days / normal
1.4 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 August – 17 August86.6°83.3°+1.8°
18 August – 27 August79°81.4°-1.3°
28 August – 6 Septemberat normal80.4°

August records over 66 years

100.6°9 August 2001All-time high
46.6°30 August 1986All-time low

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

Sun, 0991° / 73°0.02Light rain
91 °Light rain

Allentown, Sunday, 9 August

Light rain. High 91°, low 73°.

Pressure30.00 inHg
Wind9.1 mph W
Humidity42%
Visibility6.2 mi
Dew point65°
Mon, 1094° / 73°0Partly cloudy
94 °Partly cloudy

Allentown, Monday, 10 August

Partly cloudy. High 94°, low 73°.

Pressure29.97 inHg
Wind8.1 mph W
Humidity36%
Visibility6.2 mi
Dew point62°
Tue, 1193° / 73°0Overcast
93 °Overcast

Allentown, Tuesday, 11 August

Overcast. High 93°, low 73°.

Pressure29.88 inHg
Wind6.7 mph NW
Humidity45%
Visibility6.2 mi
Dew point65°
Wed, 1285° / 75°0.02Light rain
85 °Light rain

Allentown, Wednesday, 12 August

Light rain. High 85°, low 75°.

Pressure29.71 inHg
Wind11.5 mph NW
Humidity54%
Visibility6.2 mi
Dew point67°
Thu, 1387° / 68°0Light rain
87 °Light rain

Allentown, Thursday, 13 August

Light rain. High 87°, low 68°.

Pressure29.77 inHg
Wind14.8 mph NW
Humidity35%
Visibility
Dew point55°
Fri, 1480° / 58°0Clear
80 °Clear

Allentown, Friday, 14 August

Clear. High 80°, low 58°.

Pressure30.00 inHg
Wind11.1 mph NW
Humidity29%
Visibility
Dew point42°
Sat, 1582° / 60°0Clear
82 °Clear

Allentown, Saturday, 15 August

Clear. High 82°, low 60°.

Pressure30.12 inHg
Wind12.3 mph NW
Humidity31%
Visibility
Dew point46°
Sun, 1683° / 58°0Overcast
83 °Overcast

Allentown, Sunday, 16 August

Overcast. High 83°, low 58°.

Pressure30.15 inHg
Wind10.1 mph S
Humidity27%
Visibility
Dew point43°
Mon, 1782° / 60°0.06Light rain
82 °Light rain

Allentown, Monday, 17 August

Light rain. High 82°, low 60°.

Pressure30.09 inHg
Wind12.2 mph S
Humidity46%
Visibility
Dew point57°
Tue, 1871° / 65°0.12Light rain
71 °Light rain

Allentown, Tuesday, 18 August

Light rain. High 71°, low 65°.

Pressure30.09 inHg
Wind5.9 mph SE
Humidity74%
Visibility
Dew point62°
Wed, 1979° / 66°0.02Light rain
79 °Light rain

Allentown, Wednesday, 19 August

Light rain. High 79°, low 66°.

Pressure29.94 inHg
Wind11.7 mph S
Humidity73%
Visibility
Dew point62°
Thu, 2082° / 67°1.11Heavy rain
82 °Heavy rain

Allentown, Thursday, 20 August

Heavy rain. High 82°, low 67°.

Pressure29.65 inHg
Wind14.9 mph W
Humidity41%
Visibility
Dew point54°
Fri, 2179° / 61°0Clear
79 °Clear

Allentown, Friday, 21 August

Clear. High 79°, low 61°.

Pressure29.83 inHg
Wind14.1 mph NW
Humidity34%
Visibility
Dew point46°
Sat, 2280° / 56°0Clear
80 °Clear

Allentown, Saturday, 22 August

Clear. High 80°, low 56°.

Pressure30.06 inHg
Wind6.6 mph NW
Humidity29%
Visibility
Dew point42°
Sun, 2383° / 61°0Overcast
83 °Overcast

Allentown, Sunday, 23 August

Overcast. High 83°, low 61°.

Pressure29.97 inHg
Wind14.5 mph SW
Humidity55%
Visibility
Dew point63°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2481° / 64°0.07Climate normal
81 °Climate normal

Allentown, Monday, 24 August

Climate normal for this date — 60-year average.

Average high81°
Average low64°
Average precipitation0.07 in
Chance of precipitation22%
Record high93° (1998)
Record low52° (1971)
Tue, 2582° / 64°0.07Climate normal
82 °Climate normal

Allentown, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high82°
Average low64°
Average precipitation0.07 in
Chance of precipitation22%
Record high96° (1968)
Record low52° (1971)
Wed, 2682° / 65°0.07Climate normal
82 °Climate normal

Allentown, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high82°
Average low65°
Average precipitation0.07 in
Chance of precipitation23%
Record high92° (1993)
Record low54° (1960)
Thu, 2783° / 66°0.15Climate normal
83 °Climate normal

Allentown, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high83°
Average low66°
Average precipitation0.15 in
Chance of precipitation37%
Record high92° (2021)
Record low56° (1963)
Fri, 2882° / 67°0.2Climate normal
82 °Climate normal

Allentown, Friday, 28 August

Climate normal for this date — 60-year average.

Average high82°
Average low67°
Average precipitation0.2 in
Chance of precipitation43%
Record high96° (1973)
Record low53° (2025)
Sat, 2981° / 66°0.11Climate normal
81 °Climate normal

Allentown, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high81°
Average low66°
Average precipitation0.11 in
Chance of precipitation28%
Record high93° (2010)
Record low48° (1986)
Sun, 3082° / 65°0.08Climate normal
82 °Climate normal

Allentown, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high82°
Average low65°
Average precipitation0.08 in
Chance of precipitation28%
Record high95° (1973)
Record low47° (1986)
Mon, 3181° / 65°0.09Climate normal
81 °Climate normal

Allentown, Monday, 31 August

Climate normal for this date — 60-year average.

Average high81°
Average low65°
Average precipitation0.09 in
Chance of precipitation20%
Record high95° (1973)
Record low49° (1976)
Tue, 0180° / 64°0.12Climate normal
80 °Climate normal

Allentown, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high80°
Average low64°
Average precipitation0.12 in
Chance of precipitation33%
Record high94° (2010)
Record low55° (2017)
Wed, 0280° / 63°0.13Climate normal
80 °Climate normal

Allentown, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high80°
Average low63°
Average precipitation0.13 in
Chance of precipitation35%
Record high96° (1980)
Record low52° (1970)
Thu, 0380° / 64°0.1Climate normal
80 °Climate normal

Allentown, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high80°
Average low64°
Average precipitation0.1 in
Chance of precipitation32%
Record high92° (1993)
Record low48° (1967)
Fri, 0480° / 64°0.08Climate normal
80 °Climate normal

Allentown, Friday, 4 September

Climate normal for this date — 60-year average.

Average high80°
Average low64°
Average precipitation0.08 in
Chance of precipitation32%
Record high92° (2008)
Record low51° (2024)
Sat, 0580° / 64°0.07Climate normal
80 °Climate normal

Allentown, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high80°
Average low64°
Average precipitation0.07 in
Chance of precipitation23%
Record high94° (2023)
Record low52° (1997)
Sun, 0679° / 63°0.18Climate normal
79 °Climate normal

Allentown, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high79°
Average low63°
Average precipitation0.18 in
Chance of precipitation37%
Record high94° (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 Allentown, 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 Allentown, 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.