Weather in Waltham, MA
Waltham, Tuesday, 3 November, 19:32
Overcast. Feels like 61°. High 70°, low 50°.
Monthly outlook for Waltham, MA: average high 55.6°, average low 41°. That is 2.4° above the climate normal for November. Precipitation is expected on 3 days (about 1.5 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 4 November (74.8°), the coolest 15 November (29.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 3 November – 12 November | 60.1° | 52.9° | +4° |
| 13 November – 22 November | 48° | 47.8° | +0.1° |
| 23 November – 2 December | at normal | 45.5° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Belmont (3 mi).
0
Waltham, Wednesday, 4 November
Clear. High 75°, low 56°.
0Waltham, Thursday, 5 November
Overcast. High 73°, low 60°.
0.82
Waltham, Friday, 6 November
Rain. High 69°, low 59°.
0.65Waltham, Saturday, 7 November
Rain. High 59°, low 51°.
0.07Waltham, Sunday, 8 November
Light rain. High 55°, low 47°.
0Waltham, Monday, 9 November
Clear. High 49°, low 37°.
0Waltham, Tuesday, 10 November
Overcast. High 55°, low 35°.
0
Waltham, Wednesday, 11 November
Partly cloudy. High 49°, low 35°.
0Waltham, Thursday, 12 November
Clear. High 46°, low 30°.
0Waltham, Friday, 13 November
Partly cloudy. High 46°, low 31°.
0Waltham, Saturday, 14 November
Clear. High 42°, low 30°.
0Waltham, Sunday, 15 November
Clear. High 46°, low 30°.
0Waltham, Monday, 16 November
Overcast. High 48°, low 31°.
0Waltham, Tuesday, 17 November
Partly cloudy. High 52°, low 34°.
0Waltham, Wednesday, 18 November
Clear. High 53°, low 37°.
0.05Waltham, Thursday, 19 November
Climate normal for this date — 60-year average.
0.12Waltham, Friday, 20 November
Climate normal for this date — 60-year average.
0.12
Waltham, Saturday, 21 November
Climate normal for this date — 60-year average.
0.16Waltham, Sunday, 22 November
Climate normal for this date — 60-year average.
0.14Waltham, Monday, 23 November
Climate normal for this date — 60-year average.
0.08Waltham, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.15Waltham, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.18Waltham, Thursday, 26 November
Climate normal for this date — 60-year average.
0.11Waltham, Friday, 27 November
Climate normal for this date — 60-year average.
0.17Waltham, Saturday, 28 November
Climate normal for this date — 60-year average.
0.07Waltham, Sunday, 29 November
Climate normal for this date — 60-year average.
0.11Waltham, Monday, 30 November
Climate normal for this date — 60-year average.
0.11Waltham, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.12Waltham, Wednesday, 2 December
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 Waltham, 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 Waltham, 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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