Weather in Lake Success, NY
Lake Success, Sunday, 9 August, 08:36
Overcast. Feels like 80°. High 90°, low 72°.
Monthly outlook for Lake Success, NY: average high 86.4°, average low 72.4°. That is 3.4° above the climate normal for August. Precipitation is expected on 3 days (about 0.6 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 22 August (95.8°), the coolest 18 August (65.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 84.4° | 81.1° | +1.8° |
| 19 August – 28 August | 89.8° | 79.4° | +5.7° |
| 29 August – 7 September | at normal | 78° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — University Gardens (1 mi).
0.02
Lake Success, Monday, 10 August
Light rain. High 89°, low 72°.
0Lake Success, Tuesday, 11 August
Light rain. High 92°, low 75°.
0Lake Success, Wednesday, 12 August
Overcast. High 86°, low 76°.
0Lake Success, Thursday, 13 August
Light rain. High 90°, low 74°.
0
Lake Success, Friday, 14 August
Partly cloudy. High 81°, low 68°.
0
Lake Success, Saturday, 15 August
Clear. High 80°, low 65°.
0Lake Success, Sunday, 16 August
Overcast. High 80°, low 68°.
0.16Lake Success, Monday, 17 August
Light rain. High 74°, low 67°.
0Lake Success, Tuesday, 18 August
Overcast. High 83°, low 65°.
0Lake Success, Wednesday, 19 August
Partly cloudy. High 85°, low 74°.
0Lake Success, Thursday, 20 August
Clear. High 87°, low 74°.
0.02Lake Success, Friday, 21 August
Light rain. High 87°, low 75°.
0.04Lake Success, Saturday, 22 August
Light rain. High 96°, low 76°.
0Lake Success, Sunday, 23 August
Clear. High 95°, low 78°.
0.3Lake Success, Monday, 24 August
Rain. High 89°, low 79°.
0.07Lake Success, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.06Lake Success, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.13
Lake Success, Thursday, 27 August
Climate normal for this date — 60-year average.
0.19Lake Success, Friday, 28 August
Climate normal for this date — 60-year average.
0.13Lake Success, Saturday, 29 August
Climate normal for this date — 60-year average.
0.07Lake Success, Sunday, 30 August
Climate normal for this date — 60-year average.
0.05
Lake Success, Monday, 31 August
Climate normal for this date — 60-year average.
0.1Lake Success, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.17Lake Success, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.11Lake Success, Thursday, 3 September
Climate normal for this date — 60-year average.
0.11Lake Success, Friday, 4 September
Climate normal for this date — 60-year average.
0.05Lake Success, Saturday, 5 September
Climate normal for this date — 60-year average.
0.17Lake Success, Sunday, 6 September
Climate normal for this date — 60-year average.
0.1Lake Success, 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 Lake Success, 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 Lake Success, 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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