Weather in Cos Cob, CT
Cos Cob, Wednesday, 28 October, 21:14
Clear. Feels like 50°. High 60°, low 38°.
Monthly outlook for Cos Cob, CT: average high 58.9°, average low 45.4°. That is 1.7° above the climate normal for October. Precipitation is expected on 4 days (about 2.6 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 30 October (69.6°), the coolest 1 November (37.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 28 October – 6 November | 62.2° | 57.2° | +2.8° |
| 7 November – 16 November | 53.4° | 52.6° | +0.4° |
| 17 November – 26 November | at normal | 49.2° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Pemberwick (4 mi).
0
Cos Cob, Thursday, 29 October
Clear. High 68°, low 45°.
0Cos Cob, Friday, 30 October
Clear. High 70°, low 46°.
0
Cos Cob, Saturday, 31 October
Partly cloudy. High 56°, low 41°.
0Cos Cob, Sunday, 1 November
Clear. High 60°, low 37°.
0Cos Cob, Monday, 2 November
Clear. High 66°, low 43°.
0.02
Cos Cob, Tuesday, 3 November
Light rain. High 58°, low 48°.
0
Cos Cob, Wednesday, 4 November
Overcast. High 59°, low 55°.
1.37Cos Cob, Thursday, 5 November
Heavy rain. High 63°, low 56°.
0.43Cos Cob, Friday, 6 November
Rain. High 64°, low 54°.
0Cos Cob, Saturday, 7 November
Clear. High 55°, low 47°.
0Cos Cob, Sunday, 8 November
Overcast. High 53°, low 43°.
0Cos Cob, Monday, 9 November
Overcast. High 51°, low 43°.
0.59Cos Cob, Tuesday, 10 November
Rain. High 53°, low 50°.
0.18Cos Cob, Wednesday, 11 November
Rain. High 60°, low 42°.
0
Cos Cob, Thursday, 12 November
Mostly clear. High 48°, low 39°.
0.19
Cos Cob, Friday, 13 November
Climate normal for this date — 60-year average.
0.08Cos Cob, Saturday, 14 November
Climate normal for this date — 60-year average.
0.1Cos Cob, Sunday, 15 November
Climate normal for this date — 60-year average.
0.12Cos Cob, Monday, 16 November
Climate normal for this date — 60-year average.
0.11Cos Cob, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.08Cos Cob, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.07Cos Cob, Thursday, 19 November
Climate normal for this date — 60-year average.
0.13Cos Cob, Friday, 20 November
Climate normal for this date — 60-year average.
0.11Cos Cob, Saturday, 21 November
Climate normal for this date — 60-year average.
0.14Cos Cob, Sunday, 22 November
Climate normal for this date — 60-year average.
0.11Cos Cob, Monday, 23 November
Climate normal for this date — 60-year average.
0.09Cos Cob, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.13Cos Cob, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.21Cos Cob, Thursday, 26 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 Cos Cob, CT 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 Cos Cob, CT 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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