Weather in Black Rock, MA
Black Rock, Sunday, 9 August, 07:15
Partly cloudy. Feels like 73°. High 93°, low 71°.
Monthly outlook for Black Rock, MA: average high 80.7°, average low 66.1°. That is 1.6° above the climate normal for August. Precipitation is expected on 3 days (about 0.3 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 9 August (93.1°), the coolest 15 August (58.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 81.4° | 78.5° | +1.6° |
| 19 August – 28 August | 79.5° | 76.7° | +1.5° |
| 29 August – 7 September | at normal | 74.9° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Quincy (10 mi).
0
Black Rock, Monday, 10 August
Clear. High 89°, low 70°.
0
Black Rock, Tuesday, 11 August
Overcast. High 87°, low 71°.
0Black Rock, Wednesday, 12 August
Overcast. High 79°, low 68°.
0.05
Black Rock, Thursday, 13 August
Light rain. High 82°, low 66°.
0Black Rock, Friday, 14 August
Clear. High 76°, low 60°.
0Black Rock, Saturday, 15 August
Clear. High 77°, low 58°.
0Black Rock, Sunday, 16 August
Overcast. High 74°, low 64°.
0.13Black Rock, Monday, 17 August
Light rain. High 81°, low 63°.
0.02Black Rock, Tuesday, 18 August
Light rain. High 76°, low 61°.
0Black Rock, Wednesday, 19 August
Overcast. High 73°, low 64°.
0Black Rock, Thursday, 20 August
Overcast. High 84°, low 66°.
0.02Black Rock, Friday, 21 August
Light rain. High 88°, low 71°.
0.09Black Rock, Saturday, 22 August
Light rain. High 84°, low 72°.
0Black Rock, Sunday, 23 August
Light rain. High 78°, low 68°.
0Black Rock, Monday, 24 August
Overcast. High 71°, low 65°.
0.09Black Rock, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.06
Black Rock, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.07Black Rock, Thursday, 27 August
Climate normal for this date — 60-year average.
0.11
Black Rock, Friday, 28 August
Climate normal for this date — 60-year average.
0.17Black Rock, Saturday, 29 August
Climate normal for this date — 60-year average.
0.15Black Rock, Sunday, 30 August
Climate normal for this date — 60-year average.
0.07Black Rock, Monday, 31 August
Climate normal for this date — 60-year average.
0.06Black Rock, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.17Black Rock, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.14Black Rock, Thursday, 3 September
Climate normal for this date — 60-year average.
0.12Black Rock, Friday, 4 September
Climate normal for this date — 60-year average.
0.07Black Rock, Saturday, 5 September
Climate normal for this date — 60-year average.
0.15Black Rock, Sunday, 6 September
Climate normal for this date — 60-year average.
0.12Black Rock, 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 Black Rock, MA 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 Black Rock, MA 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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