Weather in Southold, NY
Southold, Saturday, 8 August, 22:45
Overcast. Feels like 79°. High 88°, low 72°.
Monthly outlook for Southold, NY: average high 78.6°, average low 69.6°. That is 2.4° above the climate normal for August. Precipitation is expected on 4 days (about 1.4 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 9 August (90.5°), the coolest 22 August (65.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 August – 17 August | 80.6° | 74.8° | +3.2° |
| 18 August – 27 August | 75.4° | 73.6° | +1° |
| 28 August – 6 September | at normal | 72.6° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Sag Harbor (7 mi).
0.02
Southold, Sunday, 9 August
Light rain. High 90°, low 73°.
0Southold, Monday, 10 August
Light rain. High 88°, low 72°.
0Southold, Tuesday, 11 August
Overcast. High 82°, low 74°.
0.22Southold, Wednesday, 12 August
Rain. High 75°, low 70°.
0.13Southold, Thursday, 13 August
Light rain. High 79°, low 70°.
0
Southold, Friday, 14 August
Clear. High 75°, low 66°.
0Southold, Saturday, 15 August
Clear. High 77°, low 67°.
0Southold, Sunday, 16 August
Clear. High 75°, low 67°.
0Southold, Monday, 17 August
Overcast. High 75°, low 70°.
0Southold, Tuesday, 18 August
Overcast. High 75°, low 69°.
0Southold, Wednesday, 19 August
Overcast. High 75°, low 70°.
0.88Southold, Thursday, 20 August
Rain. High 78°, low 70°.
0Southold, Friday, 21 August
Overcast. High 75°, low 67°.
0Southold, Saturday, 22 August
Clear. High 74°, low 65°.
0.01Southold, Sunday, 23 August
Light rain. High 75°, low 70°.
0.1
Southold, Monday, 24 August
Climate normal for this date — 60-year average.
0.1Southold, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.06
Southold, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.09Southold, Thursday, 27 August
Climate normal for this date — 60-year average.
0.16Southold, Friday, 28 August
Climate normal for this date — 60-year average.
0.17
Southold, Saturday, 29 August
Climate normal for this date — 60-year average.
0.1Southold, Sunday, 30 August
Climate normal for this date — 60-year average.
0.06Southold, Monday, 31 August
Climate normal for this date — 60-year average.
0.07Southold, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.21Southold, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.1Southold, Thursday, 3 September
Climate normal for this date — 60-year average.
0.14Southold, Friday, 4 September
Climate normal for this date — 60-year average.
0.05Southold, Saturday, 5 September
Climate normal for this date — 60-year average.
0.12Southold, Sunday, 6 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 Southold, NY 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 Southold, NY 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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