Weather in Rochester, MA
Rochester, Tuesday, 20 October, 03:34
Overcast. Feels like 42°. High 63°, low 42°.
Monthly outlook for Rochester, MA: average high 58°, average low 43°. That is 0.3° above the climate normal for October. Precipitation is expected on 2 days (about 1.2 inches), against a normal of 4 days and 1.9 inches. The warmest day looks like 26 October (66.4°), the coolest 30 October (34.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 20 October – 29 October | 57.8° | 58.2° | -0.2° |
| 30 October – 8 November | 58.3° | 55.3° | +1.7° |
| 9 November – 18 November | at normal | 51.2° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — New Bedford (8 mi).
0Rochester, Wednesday, 21 October
Overcast. High 55°, low 40°.
0Rochester, Thursday, 22 October
Overcast. High 61°, low 47°.
0
Rochester, Friday, 23 October
Mostly clear. High 50°, low 40°.
0
Rochester, Saturday, 24 October
Clear. High 54°, low 37°.
0Rochester, Sunday, 25 October
Clear. High 61°, low 37°.
0Rochester, Monday, 26 October
Overcast. High 66°, low 46°.
0Rochester, Tuesday, 27 October
Overcast. High 62°, low 54°.
0.02
Rochester, Wednesday, 28 October
Light rain. High 59°, low 43°.
0.01Rochester, Thursday, 29 October
Light rain. High 47°, low 35°.
0Rochester, Friday, 30 October
Clear. High 49°, low 34°.
0Rochester, Saturday, 31 October
Clear. High 58°, low 39°.
0Rochester, Sunday, 1 November
Clear. High 58°, low 39°.
0Rochester, Monday, 2 November
Overcast. High 63°, low 46°.
0.52Rochester, Tuesday, 3 November
Rain. High 60°, low 52°.
0.68Rochester, Wednesday, 4 November
Heavy rain. High 63°, low 56°.
0.15
Rochester, Thursday, 5 November
Climate normal for this date — 60-year average.
0.13Rochester, Friday, 6 November
Climate normal for this date — 60-year average.
0.06
Rochester, Saturday, 7 November
Climate normal for this date — 60-year average.
0.12Rochester, Sunday, 8 November
Climate normal for this date — 60-year average.
0.09Rochester, Monday, 9 November
Climate normal for this date — 60-year average.
0.17Rochester, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.11Rochester, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.15Rochester, Thursday, 12 November
Climate normal for this date — 60-year average.
0.21Rochester, Friday, 13 November
Climate normal for this date — 60-year average.
0.11Rochester, Saturday, 14 November
Climate normal for this date — 60-year average.
0.11Rochester, Sunday, 15 November
Climate normal for this date — 60-year average.
0.16Rochester, Monday, 16 November
Climate normal for this date — 60-year average.
0.15Rochester, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.07Rochester, Wednesday, 18 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 Rochester, 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 Rochester, 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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