Weather in Bolton, MA
Bolton, Sunday, 11 October, 00:20
Partly cloudy. Feels like 43°. High 59°, low 40°.
Monthly outlook for Bolton, MA: average high 57.7°, average low 38.9°. That is 0.7° below the climate normal for October. Precipitation is expected on 4 days (about 1.7 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 14 October (75.3°), the coolest 19 October (28.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 11 October – 20 October | 59.8° | 59.8° | +0° |
| 21 October – 30 October | 54.1° | 56.5° | -1.3° |
| 31 October – 9 November | at normal | 53.3° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Leominster (10 mi).
1.02
Bolton, Monday, 12 October
Heavy rain. High 69°, low 44°.
0.01Bolton, Tuesday, 13 October
Light rain. High 61°, low 52°.
0.01Bolton, Wednesday, 14 October
Light rain. High 75°, low 59°.
0
Bolton, Thursday, 15 October
Clear. High 57°, low 43°.
0.18Bolton, Friday, 16 October
Rain. High 64°, low 40°.
0.13Bolton, Saturday, 17 October
Light rain. High 65°, low 42°.
0
Bolton, Sunday, 18 October
Overcast. High 45°, low 33°.
0Bolton, Monday, 19 October
Clear. High 49°, low 29°.
0Bolton, Tuesday, 20 October
Overcast. High 54°, low 31°.
0Bolton, Wednesday, 21 October
Clear. High 58°, low 35°.
0Bolton, Thursday, 22 October
Overcast. High 60°, low 41°.
0Bolton, Friday, 23 October
Overcast. High 62°, low 43°.
0Bolton, Saturday, 24 October
Clear. High 47°, low 33°.
0Bolton, Sunday, 25 October
Clear. High 46°, low 29°.
0Bolton, Monday, 26 October
Clear. High 51°, low 30°.
0.13
Bolton, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.14
Bolton, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.15Bolton, Thursday, 29 October
Climate normal for this date — 60-year average.
0.16Bolton, Friday, 30 October
Climate normal for this date — 60-year average.
0.09Bolton, Saturday, 31 October
Climate normal for this date — 60-year average.
0.12Bolton, Sunday, 1 November
Climate normal for this date — 60-year average.
0.09Bolton, Monday, 2 November
Climate normal for this date — 60-year average.
0.17Bolton, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.05Bolton, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.15Bolton, Thursday, 5 November
Climate normal for this date — 60-year average.
0.13Bolton, Friday, 6 November
Climate normal for this date — 60-year average.
0.06Bolton, Saturday, 7 November
Climate normal for this date — 60-year average.
0.1Bolton, Sunday, 8 November
Climate normal for this date — 60-year average.
0.1Bolton, Monday, 9 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 Bolton, 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 Bolton, 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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