Weather in South Grafton Street, MA
South Grafton Street, Sunday, 9 August, 16:42
Clear. Feels like 91°. High 87°, low 69°.
Monthly outlook for South Grafton Street, MA: average high 81.4°, average low 61°. That is 1.3° above the climate normal for August. Precipitation is expected on 2 days (about 0.4 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 24 August (87.9°), the coolest 15 August (53.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 80.3° | 80° | +0.2° |
| 19 August – 28 August | 83.2° | 78° | +2.9° |
| 29 August – 7 September | at normal | 76.3° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Worcester (3 mi).
0.01
South Grafton Street, Monday, 10 August
Light rain. High 87°, low 66°.
0
South Grafton Street, Tuesday, 11 August
Partly cloudy. High 86°, low 67°.
0.02South Grafton Street, Wednesday, 12 August
Light rain. High 78°, low 63°.
0South Grafton Street, Thursday, 13 August
Clear. High 82°, low 59°.
0
South Grafton Street, Friday, 14 August
Overcast. High 74°, low 55°.
0South Grafton Street, Saturday, 15 August
Partly cloudy. High 78°, low 54°.
0.25South Grafton Street, Sunday, 16 August
Light rain. High 73°, low 56°.
0.08South Grafton Street, Monday, 17 August
Light rain. High 76°, low 60°.
0
South Grafton Street, Tuesday, 18 August
Mostly clear. High 83°, low 59°.
0.04South Grafton Street, Wednesday, 19 August
Light rain. High 82°, low 67°.
0South Grafton Street, Thursday, 20 August
Overcast. High 83°, low 57°.
0.01South Grafton Street, Friday, 21 August
Light rain. High 84°, low 65°.
0South Grafton Street, Saturday, 22 August
Light rain. High 79°, low 61°.
0South Grafton Street, Sunday, 23 August
Clear. High 84°, low 60°.
0.03South Grafton Street, Monday, 24 August
Light rain. High 88°, low 60°.
0.09South Grafton Street, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.07South Grafton Street, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.1
South Grafton Street, Thursday, 27 August
Climate normal for this date — 60-year average.
0.15South Grafton Street, Friday, 28 August
Climate normal for this date — 60-year average.
0.17South Grafton Street, Saturday, 29 August
Climate normal for this date — 60-year average.
0.1South Grafton Street, Sunday, 30 August
Climate normal for this date — 60-year average.
0.07South Grafton Street, Monday, 31 August
Climate normal for this date — 60-year average.
0.07South Grafton Street, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.14South Grafton Street, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.12South Grafton Street, Thursday, 3 September
Climate normal for this date — 60-year average.
0.11South Grafton Street, Friday, 4 September
Climate normal for this date — 60-year average.
0.07South Grafton Street, Saturday, 5 September
Climate normal for this date — 60-year average.
0.15South Grafton Street, Sunday, 6 September
Climate normal for this date — 60-year average.
0.1South Grafton Street, 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 Grafton Street, 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 South Grafton Street, 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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