Weather in Arlington, MA
Arlington, Tuesday, 20 October, 18:33
Clear. Feels like 54°. High 65°, low 39°.
Monthly outlook for Arlington, MA: average high 57.1°, average low 40°. That is 0.2° below the climate normal for October. Precipitation is expected on 2 days (about 1.1 inches), against a normal of 4 days and 1.9 inches. The warmest day looks like 26 October (68.5°), the coolest 31 October (32.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 20 October – 29 October | 59.2° | 58.2° | +0.5° |
| 30 October – 8 November | 53.7° | 55° | -0.7° |
| 9 November – 18 November | at normal | 50° | — |
October records over 66 years
0
Arlington, Wednesday, 21 October
Mostly clear. High 56°, low 39°.
0
Arlington, Thursday, 22 October
Clear. High 63°, low 41°.
0Arlington, Friday, 23 October
Clear. High 51°, low 37°.
0Arlington, Saturday, 24 October
Clear. High 55°, low 34°.
0Arlington, Sunday, 25 October
Clear. High 64°, low 36°.
0
Arlington, Monday, 26 October
Partly cloudy. High 68°, low 41°.
0
Arlington, Tuesday, 27 October
Light rain. High 60°, low 47°.
0.01Arlington, Wednesday, 28 October
Light rain. High 48°, low 45°.
0.37Arlington, Thursday, 29 October
Rain. High 62°, low 46°.
0Arlington, Friday, 30 October
Clear. High 47°, low 36°.
0Arlington, Saturday, 31 October
Clear. High 51°, low 32°.
0
Arlington, Sunday, 1 November
Overcast. High 59°, low 40°.
0.72Arlington, Monday, 2 November
Rain. High 62°, low 55°.
0Arlington, Tuesday, 3 November
Clear. High 59°, low 39°.
0Arlington, Wednesday, 4 November
Clear. High 44°, low 34°.
0.15
Arlington, Thursday, 5 November
Climate normal for this date — 60-year average.
0.12Arlington, Friday, 6 November
Climate normal for this date — 60-year average.
0.05Arlington, Saturday, 7 November
Climate normal for this date — 60-year average.
0.09Arlington, Sunday, 8 November
Climate normal for this date — 60-year average.
0.09Arlington, Monday, 9 November
Climate normal for this date — 60-year average.
0.16Arlington, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.11Arlington, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.14Arlington, Thursday, 12 November
Climate normal for this date — 60-year average.
0.16Arlington, Friday, 13 November
Climate normal for this date — 60-year average.
0.13Arlington, Saturday, 14 November
Climate normal for this date — 60-year average.
0.12Arlington, Sunday, 15 November
Climate normal for this date — 60-year average.
0.15Arlington, Monday, 16 November
Climate normal for this date — 60-year average.
0.13Arlington, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.07Arlington, 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 Arlington, 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 Arlington, 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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