Monthly outlook for Portertown, NJ: average high 63.7°, average low 48.6°. That is 1.4° above the climate normal for October. Precipitation is expected on 2 days (about 2.7 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 29 October (71.7°), the coolest 24 October (38.3°).
63.7°/48.6°
Average high / low
+1.4°
Above normal
2 / 4
Wet days / normal
2.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
21 October – 30 October
63.2°
61.8°
+0.8°
31 October – 9 November
64.6°
58.9°
+3.1°
10 November – 19 November
at normal
53.9°
—
October records over 66 years
92.5°2 October 2019All-time high
27.7°24 October 1969All-time low
Climate normals and records are computed from the nearest reference point — Penns Grove (10 mi).
Thu, 2267° / 42°0
67 °
Portertown, Thursday, 22 October
Clear. High 67°, low 42°.
Pressure30.06 inHg
Wind6.7 mph N
Humidity41%
Visibility6.2 mi
Dew point37°
Fri, 2358° / 43°0
58 °
Portertown, Friday, 23 October
Clear. High 58°, low 43°.
Pressure30.39 inHg
Wind7.9 mph NE
Humidity51%
Visibility6.2 mi
Dew point37°
Sat, 2459° / 38°0
59 °
Portertown, Saturday, 24 October
Overcast. High 59°, low 38°.
Pressure30.59 inHg
Wind2.9 mph NE
Humidity50%
Visibility6.2 mi
Dew point38°
Sun, 2563° / 39°0
63 °
Portertown, Sunday, 25 October
Clear. High 63°, low 39°.
Pressure30.59 inHg
Wind3.6 mph NE
Humidity56%
Visibility—
Dew point38°
Mon, 2666° / 42°0
66 °
Portertown, Monday, 26 October
Clear. High 66°, low 42°.
Pressure30.39 inHg
Wind3.9 mph W
Humidity70%
Visibility—
Dew point47°
Tue, 2761° / 47°0
61 °
Portertown, Tuesday, 27 October
Partly cloudy. High 61°, low 47°.
Pressure30.39 inHg
Wind7.7 mph N
Humidity47%
Visibility—
Dew point35°
Wed, 2863° / 46°0
63 °
Portertown, Wednesday, 28 October
Overcast. High 63°, low 46°.
Pressure30.45 inHg
Wind7.3 mph SE
Humidity63%
Visibility—
Dew point45°
Thu, 2972° / 56°0
72 °
Portertown, Thursday, 29 October
Mostly clear. High 72°, low 56°.
Pressure30.27 inHg
Wind9.2 mph SW
Humidity74%
Visibility—
Dew point56°
Fri, 3061° / 48°0
61 °
Portertown, Friday, 30 October
Overcast. High 61°, low 48°.
Pressure30.18 inHg
Wind10.5 mph N
Humidity60%
Visibility—
Dew point45°
Sat, 3159° / 45°0
59 °
Portertown, Saturday, 31 October
Mostly clear. High 59°, low 45°.
Pressure30.50 inHg
Wind11.9 mph NE
Humidity47%
Visibility—
Dew point33°
Sun, 0160° / 47°0
60 °
Portertown, Sunday, 1 November
Overcast. High 60°, low 47°.
Pressure30.56 inHg
Wind11.5 mph SE
Humidity65%
Visibility—
Dew point44°
Mon, 0268° / 58°0.02
68 °
Portertown, Monday, 2 November
Light rain. High 68°, low 58°.
Pressure30.36 inHg
Wind11.2 mph SE
Humidity65%
Visibility—
Dew point54°
Tue, 0368° / 61°0
68 °
Portertown, Tuesday, 3 November
Overcast. High 68°, low 61°.
Pressure30.18 inHg
Wind18.4 mph E
Humidity72%
Visibility—
Dew point56°
Wed, 0464° / 61°2.39
64 °
Portertown, Wednesday, 4 November
Heavy rain. High 64°, low 61°.
Pressure29.97 inHg
Wind20.5 mph E
Humidity89%
Visibility—
Dew point58°
Thu, 0569° / 58°0.28
69 °
Portertown, Thursday, 5 November
Rain. High 69°, low 58°.
Pressure29.91 inHg
Wind9.9 mph SE
Humidity70%
Visibility—
Dew point55°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 0657° / 44°0.08
57 °
Portertown, Friday, 6 November
Climate normal for this date — 60-year average.
Average high57°
Average low44°
Average precipitation0.08 in
Chance of precipitation27%
Record high79° (2024)
Record low29° (1967)
Sat, 0757° / 43°0.09
57 °
Portertown, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high57°
Average low43°
Average precipitation0.09 in
Chance of precipitation22%
Record high77° (2024)
Record low29° (1962)
Sun, 0857° / 42°0.11
57 °
Portertown, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.11 in
Chance of precipitation25%
Record high73° (1975)
Record low27° (1960)
Mon, 0957° / 42°0.09
57 °
Portertown, Monday, 9 November
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.09 in
Chance of precipitation28%
Record high74° (1975)
Record low24° (2019)
Tue, 1057° / 42°0.16
57 °
Portertown, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.16 in
Chance of precipitation35%
Record high73° (2020)
Record low28° (2017)
Wed, 1156° / 42°0.13
56 °
Portertown, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high56°
Average low42°
Average precipitation0.13 in
Chance of precipitation28%
Record high72° (2024)
Record low24° (2017)
Thu, 1254° / 41°0.21
54 °
Portertown, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high54°
Average low41°
Average precipitation0.21 in
Chance of precipitation40%
Record high69° (2022)
Record low30° (1987)
Fri, 1353° / 39°0.14
53 °
Portertown, Friday, 13 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.14 in
Chance of precipitation40%
Record high70° (1964)
Record low24° (2019)
Sat, 1453° / 39°0.07
53 °
Portertown, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.07 in
Chance of precipitation18%
Record high70° (1993)
Record low24° (1986)
Sun, 1554° / 40°0.11
54 °
Portertown, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.11 in
Chance of precipitation30%
Record high75° (1993)
Record low26° (1996)
Mon, 1653° / 39°0.13
53 °
Portertown, Monday, 16 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.13 in
Chance of precipitation32%
Record high73° (2005)
Record low23° (1996)
Tue, 1753° / 38°0.09
53 °
Portertown, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.09 in
Chance of precipitation28%
Record high68° (2023)
Record low27° (1995)
Wed, 1853° / 38°0.06
53 °
Portertown, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.06 in
Chance of precipitation25%
Record high67° (2021)
Record low27° (1997)
Thu, 1953° / 38°0.09
53 °
Portertown, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.09 in
Chance of precipitation27%
Record high67° (1985)
Record low24° (2014)
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 Portertown, 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 Portertown, 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.