Weather in South Plainfield, NJ
South Plainfield, Sunday, 9 August, 08:15
Partly cloudy. Feels like 77°. High 88°, low 73°.
Monthly outlook for South Plainfield, NJ: average high 87.6°, average low 69.6°. That is 3.1° above the climate normal for August. Precipitation is expected on 5 days (about 0.5 inches), against a normal of 6 days and 2.3 inches. The warmest day looks like 23 August (96.4°), the coolest 15 August (60.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 84.6° | 82.8° | +1° |
| 19 August – 28 August | 92.5° | 81.2° | +6.2° |
| 29 August – 7 September | at normal | 79.8° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Edison (4 mi).
0.04
South Plainfield, Monday, 10 August
Light rain. High 88°, low 72°.
0.13South Plainfield, Tuesday, 11 August
Rain. High 91°, low 71°.
0
South Plainfield, Wednesday, 12 August
Overcast. High 86°, low 74°.
0.02South Plainfield, Thursday, 13 August
Light rain. High 84°, low 69°.
0
South Plainfield, Friday, 14 August
Clear. High 78°, low 63°.
0South Plainfield, Saturday, 15 August
Clear. High 80°, low 61°.
0South Plainfield, Sunday, 16 August
Overcast. High 82°, low 62°.
0.01South Plainfield, Monday, 17 August
Light rain. High 83°, low 65°.
0South Plainfield, Tuesday, 18 August
Overcast. High 86°, low 66°.
0South Plainfield, Wednesday, 19 August
Overcast. High 88°, low 70°.
0South Plainfield, Thursday, 20 August
Partly cloudy. High 89°, low 71°.
0.04South Plainfield, Friday, 21 August
Light rain. High 96°, low 72°.
0
South Plainfield, Saturday, 22 August
Mostly clear. High 95°, low 74°.
0South Plainfield, Sunday, 23 August
Clear. High 96°, low 76°.
0.17South Plainfield, Monday, 24 August
Light rain. High 90°, low 75°.
0.07South Plainfield, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.09South Plainfield, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.15
South Plainfield, Thursday, 27 August
Climate normal for this date — 60-year average.
0.2South Plainfield, Friday, 28 August
Climate normal for this date — 60-year average.
0.14South Plainfield, Saturday, 29 August
Climate normal for this date — 60-year average.
0.06South Plainfield, Sunday, 30 August
Climate normal for this date — 60-year average.
0.08South Plainfield, Monday, 31 August
Climate normal for this date — 60-year average.
0.13South Plainfield, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.16South Plainfield, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.13South Plainfield, Thursday, 3 September
Climate normal for this date — 60-year average.
0.09South Plainfield, Friday, 4 September
Climate normal for this date — 60-year average.
0.06South Plainfield, Saturday, 5 September
Climate normal for this date — 60-year average.
0.19South Plainfield, Sunday, 6 September
Climate normal for this date — 60-year average.
0.1South Plainfield, Monday, 7 September
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 South Plainfield, 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 South Plainfield, 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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