Weather in Old Mystic, CT
Old Mystic, Wednesday, 11 November, 03:35
Clear. Feels like 44°. High 55°, low 45°.
Monthly outlook for Old Mystic, CT: average high 49.7°, average low 38.6°. That is 0.2° below the climate normal for November. Precipitation is expected on 4 days (about 1.3 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 22 November (58.4°), the coolest 25 November (30.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 11 November – 20 November | 49.4° | 51.1° | -0.9° |
| 21 November – 30 November | 50.2° | 48.5° | +0.9° |
| 1 December – 10 December | at normal | 44.7° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Fishers Island (8 mi).
0.26
Old Mystic, Thursday, 12 November
Rain. High 55°, low 44°.
0.07Old Mystic, Friday, 13 November
Light rain. High 45°, low 38°.
0
Old Mystic, Saturday, 14 November
Overcast. High 44°, low 34°.
0
Old Mystic, Sunday, 15 November
Partly cloudy. High 46°, low 34°.
0Old Mystic, Monday, 16 November
Overcast. High 48°, low 34°.
0Old Mystic, Tuesday, 17 November
Partly cloudy. High 49°, low 35°.
0Old Mystic, Wednesday, 18 November
Overcast. High 47°, low 41°.
0Old Mystic, Thursday, 19 November
Overcast. High 51°, low 38°.
0Old Mystic, Friday, 20 November
Partly cloudy. High 54°, low 37°.
0Old Mystic, Saturday, 21 November
Partly cloudy. High 55°, low 45°.
0.2Old Mystic, Sunday, 22 November
Light rain. High 58°, low 50°.
0Old Mystic, Monday, 23 November
Overcast. High 53°, low 45°.
0.81
Old Mystic, Tuesday, 24 November
Snow. High 46°, low 34°.
0
Old Mystic, Wednesday, 25 November
Clear. High 40°, low 30°.
0Old Mystic, Thursday, 26 November
Overcast. High 49°, low 34°.
0.13
Old Mystic, Friday, 27 November
Climate normal for this date — 60-year average.
0.2Old Mystic, Saturday, 28 November
Climate normal for this date — 60-year average.
0.08Old Mystic, Sunday, 29 November
Climate normal for this date — 60-year average.
0.14Old Mystic, Monday, 30 November
Climate normal for this date — 60-year average.
0.13Old Mystic, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.14Old Mystic, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.17Old Mystic, Thursday, 3 December
Climate normal for this date — 60-year average.
0.11Old Mystic, Friday, 4 December
Climate normal for this date — 60-year average.
0.18Old Mystic, Saturday, 5 December
Climate normal for this date — 60-year average.
0.17Old Mystic, Sunday, 6 December
Climate normal for this date — 60-year average.
0.14Old Mystic, Monday, 7 December
Climate normal for this date — 60-year average.
0.1Old Mystic, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.2Old Mystic, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.13Old Mystic, Thursday, 10 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 Old Mystic, 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 Old Mystic, 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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