Weather in West Mahwah, NJ
West Mahwah, Sunday, 9 August, 10:57
Mostly clear. Feels like 90°. High 85°, low 70°.
Monthly outlook for West Mahwah, NJ: average high 80.7°, average low 61.5°. That is 0.4° above the climate normal for August. Precipitation is expected on 5 days (about 0.6 inches), against a normal of 6 days and 2.3 inches. The warmest day looks like 11 August (85.9°), the coolest 15 August (54.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 79.7° | 80.9° | -0.6° |
| 19 August – 28 August | 82.5° | 79.1° | +1.9° |
| 29 August – 7 September | at normal | 77.6° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Ramapo (3 mi).
0.07
West Mahwah, Monday, 10 August
Rain. High 86°, low 68°.
0.01West Mahwah, Tuesday, 11 August
Light rain. High 86°, low 69°.
0.01West Mahwah, Wednesday, 12 August
Light rain. High 85°, low 63°.
0.03West Mahwah, Thursday, 13 August
Light rain. High 82°, low 63°.
0
West Mahwah, Friday, 14 August
Clear. High 76°, low 58°.
0West Mahwah, Saturday, 15 August
Clear. High 76°, low 55°.
0
West Mahwah, Sunday, 16 August
Overcast. High 75°, low 56°.
0.13West Mahwah, Monday, 17 August
Light rain. High 66°, low 60°.
0West Mahwah, Tuesday, 18 August
Overcast. High 82°, low 57°.
0.08West Mahwah, Wednesday, 19 August
Light rain. High 82°, low 65°.
0.12West Mahwah, Thursday, 20 August
Light rain. High 83°, low 61°.
0West Mahwah, Friday, 21 August
Mostly clear. High 81°, low 57°.
0West Mahwah, Saturday, 22 August
Clear. High 86°, low 60°.
0.19West Mahwah, Sunday, 23 August
Rain. High 85°, low 65°.
0West Mahwah, Monday, 24 August
Clear. High 78°, low 57°.
0.09
West Mahwah, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.07West Mahwah, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.2
West Mahwah, Thursday, 27 August
Climate normal for this date — 60-year average.
0.24West Mahwah, Friday, 28 August
Climate normal for this date — 60-year average.
0.15West Mahwah, Saturday, 29 August
Climate normal for this date — 60-year average.
0.07West Mahwah, Sunday, 30 August
Climate normal for this date — 60-year average.
0.06West Mahwah, Monday, 31 August
Climate normal for this date — 60-year average.
0.13West Mahwah, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.15West Mahwah, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.11West Mahwah, Thursday, 3 September
Climate normal for this date — 60-year average.
0.14West Mahwah, Friday, 4 September
Climate normal for this date — 60-year average.
0.08West Mahwah, Saturday, 5 September
Climate normal for this date — 60-year average.
0.25West Mahwah, Sunday, 6 September
Climate normal for this date — 60-year average.
0.13West Mahwah, 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 West Mahwah, 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 West Mahwah, 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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