Weather in Somerville, MA
Somerville, Saturday, 10 October, 23:58
Partly cloudy. Feels like 47°. High 61°, low 44°.
Monthly outlook for Somerville, MA: average high 59.4°, average low 43.9°. That is 0.4° below the climate normal for October. Precipitation is expected on 4 days (about 1.6 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 14 October (77.7°), the coolest 19 October (35.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 11 October – 20 October | 61.3° | 60.8° | +0.3° |
| 21 October – 30 October | 56.3° | 57.8° | -0.8° |
| 31 October – 9 November | at normal | 54.7° | — |
October records over 66 years
1.04
Somerville, Monday, 12 October
Heavy rain. High 69°, low 50°.
0.01Somerville, Tuesday, 13 October
Light rain. High 63°, low 54°.
0
Somerville, Wednesday, 14 October
Clear. High 78°, low 61°.
0Somerville, Thursday, 15 October
Clear. High 58°, low 46°.
0.23Somerville, Friday, 16 October
Rain. High 66°, low 41°.
0.12Somerville, Saturday, 17 October
Light rain. High 66°, low 47°.
0
Somerville, Sunday, 18 October
Overcast. High 48°, low 38°.
0Somerville, Monday, 19 October
Clear. High 50°, low 36°.
0Somerville, Tuesday, 20 October
Overcast. High 55°, low 37°.
0Somerville, Wednesday, 21 October
Clear. High 59°, low 41°.
0Somerville, Thursday, 22 October
Overcast. High 62°, low 46°.
0
Somerville, Friday, 23 October
Partly cloudy. High 65°, low 49°.
0Somerville, Saturday, 24 October
Clear. High 51°, low 40°.
0Somerville, Sunday, 25 October
Clear. High 48°, low 36°.
0Somerville, Monday, 26 October
Clear. High 52°, low 37°.
0.14Somerville, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.12
Somerville, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.15Somerville, Thursday, 29 October
Climate normal for this date — 60-year average.
0.16Somerville, Friday, 30 October
Climate normal for this date — 60-year average.
0.09Somerville, Saturday, 31 October
Climate normal for this date — 60-year average.
0.11Somerville, Sunday, 1 November
Climate normal for this date — 60-year average.
0.1Somerville, Monday, 2 November
Climate normal for this date — 60-year average.
0.21Somerville, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.05Somerville, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.16Somerville, Thursday, 5 November
Climate normal for this date — 60-year average.
0.13Somerville, Friday, 6 November
Climate normal for this date — 60-year average.
0.06Somerville, Saturday, 7 November
Climate normal for this date — 60-year average.
0.1Somerville, Sunday, 8 November
Climate normal for this date — 60-year average.
0.11Somerville, 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 Somerville, 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 Somerville, 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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