As of 19:53 EDT

Weather in Iselin, NJ

59°Current weather

Iselin, Thursday, 15 October, 19:53

Clear. Feels like 58°. High 66°, low 53°.

Pressure30.18 inHg
Wind8.1 mph SE
Humidity72%
Visibility6.2 mi
Dew point50°

Monthly outlook for Iselin, NJ: average high 64.8°, average low 49.7°. That is 1.8° above the climate normal for October. Precipitation is expected on 1 day (about 0.2 inches), against a normal of 4 days and 2.0 inches. The warmest day looks like 16 October (81.7°), the coolest 18 October (37.8°).

64.8°/49.7°
Average high / low
+1.8°
Above normal
1 / 4
Wet days / normal
0.2 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
15 October – 24 October63.9°62.9°+0.6°
25 October – 3 November66.2°59.5°+3.8°
4 November – 13 Novemberat normal55.3°—

October records over 66 years

91.9°2 October 2019All-time high
29.3°31 October 2020All-time low
Fri, 1682° / 58°0.2Rain
82 °Rain

Iselin, Friday, 16 October

Rain. High 82°, low 58°.

Pressure29.77 inHg
Wind10.4 mph SW
Humidity88%
Visibility3.0 mi
Dew point66°
Sat, 1762° / 43°0Overcast
62 °Overcast

Iselin, Saturday, 17 October

Overcast. High 62°, low 43°.

Pressure30.18 inHg
Wind12.4 mph NW
Humidity46%
Visibility6.2 mi
Dew point33°
Sun, 1856° / 38°0Clear
56 °Clear

Iselin, Sunday, 18 October

Clear. High 56°, low 38°.

Pressure30.62 inHg
Wind4.6 mph NE
Humidity45%
Visibility6.2 mi
Dew point31°
Mon, 1960° / 43°0Clear
60 °Clear

Iselin, Monday, 19 October

Clear. High 60°, low 43°.

Pressure30.50 inHg
Wind6.9 mph NE
Humidity58%
Visibility6.2 mi
Dew point42°
Tue, 2066° / 48°0Overcast
66 °Overcast

Iselin, Tuesday, 20 October

Overcast. High 66°, low 48°.

Pressure30.21 inHg
Wind9.9 mph NE
Humidity49%
Visibility—
Dew point38°
Wed, 2162° / 51°0Clear
62 °Clear

Iselin, Wednesday, 21 October

Clear. High 62°, low 51°.

Pressure30.30 inHg
Wind10.7 mph NE
Humidity46%
Visibility—
Dew point36°
Thu, 2258° / 50°0Clear
58 °Clear

Iselin, Thursday, 22 October

Clear. High 58°, low 50°.

Pressure30.47 inHg
Wind7.5 mph NE
Humidity50%
Visibility—
Dew point36°
Fri, 2367° / 49°0Clear
67 °Clear

Iselin, Friday, 23 October

Clear. High 67°, low 49°.

Pressure30.33 inHg
Wind6.9 mph W
Humidity56%
Visibility—
Dew point42°
Sat, 2461° / 52°0Clear
61 °Clear

Iselin, Saturday, 24 October

Clear. High 61°, low 52°.

Pressure30.39 inHg
Wind7.3 mph NE
Humidity52%
Visibility—
Dew point39°
Sun, 2558° / 49°0Clear
58 °Clear

Iselin, Sunday, 25 October

Clear. High 58°, low 49°.

Pressure30.50 inHg
Wind8.9 mph NE
Humidity48%
Visibility—
Dew point34°
Mon, 2670° / 49°0Clear
70 °Clear

Iselin, Monday, 26 October

Clear. High 70°, low 49°.

Pressure30.39 inHg
Wind8.7 mph NW
Humidity55%
Visibility—
Dew point44°
Tue, 2762° / 51°0Overcast
62 °Overcast

Iselin, Tuesday, 27 October

Overcast. High 62°, low 51°.

Pressure30.45 inHg
Wind5 mph N
Humidity50%
Visibility—
Dew point38°
Wed, 2865° / 51°0Overcast
65 °Overcast

Iselin, Wednesday, 28 October

Overcast. High 65°, low 51°.

Pressure30.45 inHg
Wind6 mph SW
Humidity52%
Visibility—
Dew point40°
Thu, 2970° / 54°0Mostly clear
70 °Mostly clear

Iselin, Thursday, 29 October

Mostly clear. High 70°, low 54°.

Pressure30.30 inHg
Wind8.1 mph SW
Humidity54%
Visibility—
Dew point45°
Fri, 3071° / 55°0Partly cloudy
71 °Partly cloudy

Iselin, Friday, 30 October

Partly cloudy. High 71°, low 55°.

Pressure30.15 inHg
Wind7.2 mph SW
Humidity53%
Visibility—
Dew point46°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Mon, 0956° / 41°0.07Climate normal
56 °Climate normal

Iselin, Monday, 9 November

Climate normal for this date — 60-year average.

Average high56°
Average low41°
Average precipitation0.07 in
Chance of precipitation25%
Record high74° (2020)
Record low23° (2019)
Tue, 1056° / 42°0.16Climate normal
56 °Climate normal

Iselin, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high56°
Average low42°
Average precipitation0.16 in
Chance of precipitation37%
Record high73° (2020)
Record low25° (2017)
Wed, 1155° / 41°0.13Climate normal
55 °Climate normal

Iselin, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high55°
Average low41°
Average precipitation0.13 in
Chance of precipitation32%
Record high72° (2020)
Record low22° (2017)
Thu, 1253° / 40°0.15Climate normal
53 °Climate normal

Iselin, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high53°
Average low40°
Average precipitation0.15 in
Chance of precipitation40%
Record high70° (2022)
Record low25° (2017)
Fri, 1352° / 39°0.19Climate normal
52 °Climate normal

Iselin, Friday, 13 November

Climate normal for this date — 60-year average.

Average high52°
Average low39°
Average precipitation0.19 in
Chance of precipitation33%
Record high71° (1964)
Record low22° (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.