Weather in West Mystic, CT
West Mystic, Sunday, 9 August, 11:41
Mostly clear. Feels like 94°. High 88°, low 71°.
Monthly outlook for West Mystic, CT: average high 78.8°, average low 66°. That is 0° below the climate normal for August. Precipitation is expected on 3 days (about 2.2 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 9 August (88.1°), the coolest 15 August (58.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 79.4° | 79.5° | -0.1° |
| 19 August – 28 August | 77.9° | 78° | -0.1° |
| 29 August – 7 September | at normal | 76.5° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Fishers Island (6 mi).
0
West Mystic, Monday, 10 August
Clear. High 87°, low 69°.
0.02
West Mystic, Tuesday, 11 August
Light rain. High 84°, low 71°.
0
West Mystic, Wednesday, 12 August
Overcast. High 77°, low 66°.
0.02West Mystic, Thursday, 13 August
Light rain. High 82°, low 69°.
0West Mystic, Friday, 14 August
Clear. High 75°, low 62°.
0West Mystic, Saturday, 15 August
Clear. High 78°, low 59°.
0West Mystic, Sunday, 16 August
Clear. High 75°, low 59°.
1.36West Mystic, Monday, 17 August
Heavy rain. High 71°, low 67°.
0.03West Mystic, Tuesday, 18 August
Light rain. High 78°, low 64°.
0.02West Mystic, Wednesday, 19 August
Light rain. High 76°, low 69°.
0.13West Mystic, Thursday, 20 August
Light rain. High 79°, low 68°.
0
West Mystic, Friday, 21 August
Partly cloudy. High 76°, low 64°.
0West Mystic, Saturday, 22 August
Clear. High 79°, low 67°.
0.57West Mystic, Sunday, 23 August
Rain. High 82°, low 70°.
0West Mystic, Monday, 24 August
Clear. High 76°, low 62°.
0.09West Mystic, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.09West Mystic, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.11West Mystic, Thursday, 27 August
Climate normal for this date — 60-year average.
0.19
West Mystic, Friday, 28 August
Climate normal for this date — 60-year average.
0.17West Mystic, Saturday, 29 August
Climate normal for this date — 60-year average.
0.11West Mystic, Sunday, 30 August
Climate normal for this date — 60-year average.
0.05West Mystic, Monday, 31 August
Climate normal for this date — 60-year average.
0.08West Mystic, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.22West Mystic, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.12West Mystic, Thursday, 3 September
Climate normal for this date — 60-year average.
0.13West Mystic, Friday, 4 September
Climate normal for this date — 60-year average.
0.06West Mystic, Saturday, 5 September
Climate normal for this date — 60-year average.
0.15West Mystic, Sunday, 6 September
Climate normal for this date — 60-year average.
0.11West Mystic, Monday, 7 September
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 West 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 West 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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