Weather in Colchester, CT
Colchester, Sunday, 25 October, 20:07
Clear. Feels like 47°. High 65°, low 32°.
Monthly outlook for Colchester, CT: average high 58°, average low 40.4°. That is 0.7° above the climate normal for October. Precipitation is expected on 2 days (about 2.1 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 30 October (68.8°), the coolest 25 October (31.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 25 October – 3 November | 60.3° | 57.8° | +1.4° |
| 4 November – 13 November | 54.3° | 53.7° | +0.3° |
| 14 November – 23 November | at normal | 49.3° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Norwich (13 mi).
0
Colchester, Monday, 26 October
Clear. High 68°, low 35°.
0Colchester, Tuesday, 27 October
Clear. High 52°, low 38°.
0Colchester, Wednesday, 28 October
Clear. High 56°, low 34°.
0
Colchester, Thursday, 29 October
Overcast. High 62°, low 44°.
0
Colchester, Friday, 30 October
Partly cloudy. High 69°, low 49°.
0Colchester, Saturday, 31 October
Clear. High 57°, low 40°.
0Colchester, Sunday, 1 November
Overcast. High 57°, low 39°.
0Colchester, Monday, 2 November
Overcast. High 65°, low 43°.
0Colchester, Tuesday, 3 November
Overcast. High 50°, low 44°.
1.44
Colchester, Wednesday, 4 November
Heavy rain. High 46°, low 44°.
0Colchester, Thursday, 5 November
Overcast. High 49°, low 42°.
0Colchester, Friday, 6 November
Partly cloudy. High 57°, low 38°.
0Colchester, Saturday, 7 November
Partly cloudy. High 57°, low 39°.
0Colchester, Sunday, 8 November
Overcast. High 58°, low 42°.
0.65Colchester, Monday, 9 November
Heavy rain. High 58°, low 44°.
0.18
Colchester, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.15Colchester, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.17Colchester, Thursday, 12 November
Climate normal for this date — 60-year average.
0.21Colchester, Friday, 13 November
Climate normal for this date — 60-year average.
0.09Colchester, Saturday, 14 November
Climate normal for this date — 60-year average.
0.12Colchester, Sunday, 15 November
Climate normal for this date — 60-year average.
0.15Colchester, Monday, 16 November
Climate normal for this date — 60-year average.
0.16Colchester, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.08Colchester, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.06
Colchester, Thursday, 19 November
Climate normal for this date — 60-year average.
0.12Colchester, Friday, 20 November
Climate normal for this date — 60-year average.
0.11Colchester, Saturday, 21 November
Climate normal for this date — 60-year average.
0.15Colchester, Sunday, 22 November
Climate normal for this date — 60-year average.
0.13Colchester, Monday, 23 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 Colchester, 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 Colchester, 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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