Weather in Lyme, CT
Lyme, Saturday, 10 October, 16:00
Overcast. Feels like 62°. High 64°, low 43°.
Monthly outlook for Lyme, CT: average high 59.9°, average low 44°. That is 0.5° below the climate normal for October. Precipitation is expected on 5 days (about 1.7 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 14 October (72.4°), the coolest 19 October (34.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 10 October – 19 October | 62.3° | 61.5° | +0.5° |
| 20 October – 29 October | 55.8° | 58.6° | -1.5° |
| 30 October – 8 November | at normal | 55.7° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Old Lyme (6 mi).
0.41
Lyme, Sunday, 11 October
Rain. High 61°, low 42°.
0.28Lyme, Monday, 12 October
Rain. High 70°, low 47°.
0.01Lyme, Tuesday, 13 October
Light rain. High 70°, low 53°.
0.03Lyme, Wednesday, 14 October
Light rain. High 72°, low 56°.
0
Lyme, Thursday, 15 October
Clear. High 57°, low 44°.
0.32Lyme, Friday, 16 October
Rain. High 64°, low 42°.
0.53Lyme, Saturday, 17 October
Rain. High 65°, low 46°.
0Lyme, Sunday, 18 October
Clear. High 49°, low 37°.
0Lyme, Monday, 19 October
Clear. High 51°, low 34°.
0Lyme, Tuesday, 20 October
Overcast. High 54°, low 37°.
0Lyme, Wednesday, 21 October
Overcast. High 55°, low 40°.
0.01Lyme, Thursday, 22 October
Light rain. High 56°, low 45°.
0.07Lyme, Friday, 23 October
Light rain. High 61°, low 52°.
0
Lyme, Saturday, 24 October
Mostly clear. High 56°, low 44°.
0
Lyme, Sunday, 25 October
Partly cloudy. High 53°, low 42°.
0.15Lyme, Monday, 26 October
Climate normal for this date — 60-year average.
0.15Lyme, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.17
Lyme, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.17Lyme, Thursday, 29 October
Climate normal for this date — 60-year average.
0.15Lyme, Friday, 30 October
Climate normal for this date — 60-year average.
0.07Lyme, Saturday, 31 October
Climate normal for this date — 60-year average.
0.12Lyme, Sunday, 1 November
Climate normal for this date — 60-year average.
0.08Lyme, Monday, 2 November
Climate normal for this date — 60-year average.
0.16Lyme, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.04Lyme, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.15Lyme, Thursday, 5 November
Climate normal for this date — 60-year average.
0.11Lyme, Friday, 6 November
Climate normal for this date — 60-year average.
0.07Lyme, Saturday, 7 November
Climate normal for this date — 60-year average.
0.13Lyme, Sunday, 8 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 Lyme, 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 Lyme, 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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