Weather in Iselin, NJ
Iselin, Friday, 9 October, 04:44
Clear. Feels like 50°. High 72°, low 50°.
Monthly outlook for Iselin, NJ: average high 64.9°, average low 52°. That is 0.6° above the climate normal for October. Precipitation is expected on 5 days (about 4.0 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 13 October (73.9°), the coolest 10 October (48.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 October – 18 October | 66.9° | 64.9° | +1.2° |
| 19 October – 28 October | 61.5° | 61.4° | +0.1° |
| 29 October – 7 November | at normal | 58.2° | — |
October records over 66 years
0
Iselin, Saturday, 10 October
Overcast. High 71°, low 48°.
0.48
Iselin, Sunday, 11 October
Rain. High 62°, low 55°.
2.68Iselin, Monday, 12 October
Heavy rain. High 71°, low 59°.
0.14Iselin, Tuesday, 13 October
Light rain. High 74°, low 54°.
0.02Iselin, Wednesday, 14 October
Light rain. High 69°, low 55°.
0
Iselin, Thursday, 15 October
Mostly clear. High 59°, low 50°.
0.02Iselin, Friday, 16 October
Light rain. High 70°, low 55°.
0.06Iselin, Saturday, 17 October
Light rain. High 64°, low 55°.
0.57Iselin, Sunday, 18 October
Rain. High 56°, low 50°.
0Iselin, Monday, 19 October
Overcast. High 58°, low 48°.
0Iselin, Tuesday, 20 October
Overcast. High 60°, low 49°.
0
Iselin, Wednesday, 21 October
Partly cloudy. High 61°, low 49°.
0Iselin, Thursday, 22 October
Overcast. High 62°, low 51°.
0
Iselin, Friday, 23 October
Clear. High 64°, low 52°.
0Iselin, Saturday, 24 October
Mostly clear. High 64°, low 52°.
0.11Iselin, Sunday, 25 October
Climate normal for this date — 60-year average.
0.13Iselin, Monday, 26 October
Climate normal for this date — 60-year average.
0.17Iselin, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.14Iselin, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.21Iselin, Thursday, 29 October
Climate normal for this date — 60-year average.
0.09Iselin, Friday, 30 October
Climate normal for this date — 60-year average.
0.06Iselin, Saturday, 31 October
Climate normal for this date — 60-year average.
0.09Iselin, Sunday, 1 November
Climate normal for this date — 60-year average.
0.08Iselin, Monday, 2 November
Climate normal for this date — 60-year average.
0.08Iselin, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.06Iselin, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.12Iselin, Thursday, 5 November
Climate normal for this date — 60-year average.
0.08Iselin, Friday, 6 November
Climate normal for this date — 60-year average.
0.09Iselin, Saturday, 7 November
Climate normal for this date — 60-year average.
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.
Sun and moon today
Weather history
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