As of 23:05 EDT

Weather in Iselin, NJ

60°Current weather

Iselin, Saturday, 10 October, 23:05

Overcast. Feels like 59°. High 70°, low 46°.

Pressure30.42 inHg
Wind6.9 mph E
Humidity79%
Visibility6.2 mi
Dew point53°

Monthly outlook for Iselin, NJ: average high 63.1°, average low 47.3°. That is 0.2° below the climate normal for October. Precipitation is expected on 5 days (about 2.7 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 14 October (75.9°), the coolest 18 October (38.5°).

63.1°/47.3°
Average high / low
−0.2°
Below normal
5 / 4
Wet days / normal
2.7 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
10 October – 19 October65.6°64.3°+0.7°
20 October – 29 October58.9°61°-1.2°
30 October – 8 Novemberat normal57.9°—

October records over 66 years

91.9°2 October 2019All-time high
29.3°31 October 2020All-time low
Sun, 1162° / 53°1.57Heavy rain
62 °Heavy rain

Iselin, Sunday, 11 October

Heavy rain. High 62°, low 53°.

Pressure30.27 inHg
Wind9.2 mph E
Humidity96%
Visibility1.7 mi
Dew point59°
Mon, 1273° / 51°0.88Heavy rain
73 °Heavy rain

Iselin, Monday, 12 October

Heavy rain. High 73°, low 51°.

Pressure29.77 inHg
Wind6.5 mph N
Humidity79%
Visibility6.2 mi
Dew point56°
Tue, 1374° / 55°0Clear
74 °Clear

Iselin, Tuesday, 13 October

Clear. High 74°, low 55°.

Pressure30.00 inHg
Wind4 mph S
Humidity73%
Visibility6.2 mi
Dew point61°
Wed, 1476° / 63°0.06Light rain
76 °Light rain

Iselin, Wednesday, 14 October

Light rain. High 76°, low 63°.

Pressure29.85 inHg
Wind8.9 mph W
Humidity70%
Visibility6.2 mi
Dew point64°
Thu, 1563° / 50°0Clear
63 °Clear

Iselin, Thursday, 15 October

Clear. High 63°, low 50°.

Pressure30.18 inHg
Wind10.5 mph N
Humidity53%
Visibility—
Dew point43°
Fri, 1667° / 46°0.06Light rain
67 °Light rain

Iselin, Friday, 16 October

Light rain. High 67°, low 46°.

Pressure30.00 inHg
Wind11.8 mph SW
Humidity72%
Visibility—
Dew point43°
Sat, 1768° / 45°0.07Light rain
68 °Light rain

Iselin, Saturday, 17 October

Light rain. High 68°, low 45°.

Pressure29.80 inHg
Wind12.9 mph NW
Humidity58%
Visibility—
Dew point44°
Sun, 1849° / 39°0Clear
49 °Clear

Iselin, Sunday, 18 October

Clear. High 49°, low 39°.

Pressure30.33 inHg
Wind13.5 mph NW
Humidity37%
Visibility—
Dew point19°
Mon, 1953° / 39°0Clear
53 °Clear

Iselin, Monday, 19 October

Clear. High 53°, low 39°.

Pressure30.62 inHg
Wind8.6 mph N
Humidity28%
Visibility—
Dew point14°
Tue, 2058° / 43°0Mostly clear
58 °Mostly clear

Iselin, Tuesday, 20 October

Mostly clear. High 58°, low 43°.

Pressure30.50 inHg
Wind3.7 mph NW
Humidity29%
Visibility—
Dew point20°
Wed, 2160° / 48°0Clear
60 °Clear

Iselin, Wednesday, 21 October

Clear. High 60°, low 48°.

Pressure30.42 inHg
Wind6.1 mph S
Humidity37%
Visibility—
Dew point28°
Thu, 2265° / 48°0Overcast
65 °Overcast

Iselin, Thursday, 22 October

Overcast. High 65°, low 48°.

Pressure30.18 inHg
Wind10.8 mph SW
Humidity52%
Visibility—
Dew point38°
Fri, 2366° / 50°0Clear
66 °Clear

Iselin, Friday, 23 October

Clear. High 66°, low 50°.

Pressure30.00 inHg
Wind11.4 mph NW
Humidity53%
Visibility—
Dew point43°
Sat, 2452° / 43°0Clear
52 °Clear

Iselin, Saturday, 24 October

Clear. High 52°, low 43°.

Pressure30.12 inHg
Wind13.2 mph NW
Humidity42%
Visibility—
Dew point26°
Sun, 2553° / 39°0.04Light rain
53 °Light rain

Iselin, Sunday, 25 October

Light rain. High 53°, low 39°.

Pressure30.39 inHg
Wind9.9 mph W
Humidity42%
Visibility—
Dew point24°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2660° / 47°0.13Climate normal
60 °Climate normal

Iselin, Monday, 26 October

Climate normal for this date — 60-year average.

Average high60°
Average low47°
Average precipitation0.13 in
Chance of precipitation32%
Record high78° (2023)
Record low34° (2018)
Tue, 2760° / 47°0.17Climate normal
60 °Climate normal

Iselin, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high60°
Average low47°
Average precipitation0.17 in
Chance of precipitation28%
Record high80° (1963)
Record low32° (1976)
Wed, 2860° / 46°0.14Climate normal
60 °Climate normal

Iselin, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high60°
Average low46°
Average precipitation0.14 in
Chance of precipitation28%
Record high80° (2023)
Record low31° (1976)
Thu, 2958° / 44°0.21Climate normal
58 °Climate normal

Iselin, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high58°
Average low44°
Average precipitation0.21 in
Chance of precipitation30%
Record high75° (1984)
Record low32° (1965)
Fri, 3058° / 44°0.09Climate normal
58 °Climate normal

Iselin, Friday, 30 October

Climate normal for this date — 60-year average.

Average high58°
Average low44°
Average precipitation0.09 in
Chance of precipitation23%
Record high78° (2024)
Record low34° (2011)
Sat, 3159° / 44°0.06Climate normal
59 °Climate normal

Iselin, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high59°
Average low44°
Average precipitation0.06 in
Chance of precipitation15%
Record high81° (2024)
Record low29° (2020)
Sun, 0160° / 46°0.09Climate normal
60 °Climate normal

Iselin, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high60°
Average low46°
Average precipitation0.09 in
Chance of precipitation23%
Record high79° (2024)
Record low34° (1983)
Mon, 0260° / 46°0.08Climate normal
60 °Climate normal

Iselin, Monday, 2 November

Climate normal for this date — 60-year average.

Average high60°
Average low46°
Average precipitation0.08 in
Chance of precipitation30%
Record high76° (1982)
Record low31° (2023)
Tue, 0360° / 45°0.08Climate normal
60 °Climate normal

Iselin, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high60°
Average low45°
Average precipitation0.08 in
Chance of precipitation22%
Record high77° (2003)
Record low33° (2002)
Wed, 0458° / 44°0.06Climate normal
58 °Climate normal

Iselin, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high58°
Average low44°
Average precipitation0.06 in
Chance of precipitation15%
Record high73° (1974)
Record low33° (2006)
Thu, 0558° / 44°0.12Climate normal
58 °Climate normal

Iselin, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high58°
Average low44°
Average precipitation0.12 in
Chance of precipitation32%
Record high77° (2022)
Record low33° (1983)
Fri, 0656° / 43°0.08Climate normal
56 °Climate normal

Iselin, Friday, 6 November

Climate normal for this date — 60-year average.

Average high56°
Average low43°
Average precipitation0.08 in
Chance of precipitation28%
Record high80° (2024)
Record low31° (2012)
Sat, 0756° / 42°0.09Climate normal
56 °Climate normal

Iselin, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high56°
Average low42°
Average precipitation0.09 in
Chance of precipitation20%
Record high75° (2022)
Record low29° (1962)
Sun, 0855° / 41°0.14Climate normal
55 °Climate normal

Iselin, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high55°
Average low41°
Average precipitation0.14 in
Chance of precipitation27%
Record high73° (1975)
Record low28° (2019)

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 Iselin, 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 Iselin, 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.