Weather in Long Island, ME
Long Island, Sunday, 9 August, 03:36
Mostly clear. Feels like 69°. High 85°, low 68°.
Monthly outlook for Long Island, ME: average high 76.2°, average low 63.5°. That is 1° above the climate normal for August. Precipitation is expected on 5 days (about 0.7 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 9 August (85.3°), the coolest 14 August (58.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 76.7° | 75° | +1° |
| 19 August – 28 August | 75.3° | 73.4° | +1.1° |
| 29 August – 7 September | at normal | 71.6° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Portland (6 mi).
0.07
Long Island, Monday, 10 August
Light rain. High 79°, low 66°.
0.03Long Island, Tuesday, 11 August
Light rain. High 81°, low 64°.
0
Long Island, Wednesday, 12 August
Partly cloudy. High 77°, low 65°.
0.08Long Island, Thursday, 13 August
Light rain. High 79°, low 63°.
0
Long Island, Friday, 14 August
Clear. High 72°, low 58°.
0
Long Island, Saturday, 15 August
Overcast. High 73°, low 61°.
0Long Island, Sunday, 16 August
Overcast. High 77°, low 60°.
0.2Long Island, Monday, 17 August
Rain. High 72°, low 64°.
0.04Long Island, Tuesday, 18 August
Light rain. High 72°, low 59°.
0Long Island, Wednesday, 19 August
Partly cloudy. High 71°, low 60°.
0Long Island, Thursday, 20 August
Overcast. High 77°, low 64°.
0.17Long Island, Friday, 21 August
Light rain. High 77°, low 69°.
0.01Long Island, Saturday, 22 August
Light rain. High 81°, low 67°.
0Long Island, Sunday, 23 August
Clear. High 77°, low 66°.
0.11Long Island, Monday, 24 August
Light rain. High 70°, low 62°.
0.11Long Island, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.04
Long Island, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.05Long Island, Thursday, 27 August
Climate normal for this date — 60-year average.
0.14Long Island, Friday, 28 August
Climate normal for this date — 60-year average.
0.15Long Island, Saturday, 29 August
Climate normal for this date — 60-year average.
0.14Long Island, Sunday, 30 August
Climate normal for this date — 60-year average.
0.09Long Island, Monday, 31 August
Climate normal for this date — 60-year average.
0.03Long Island, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.11Long Island, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.11Long Island, Thursday, 3 September
Climate normal for this date — 60-year average.
0.14
Long Island, Friday, 4 September
Climate normal for this date — 60-year average.
0.08Long Island, Saturday, 5 September
Climate normal for this date — 60-year average.
0.12Long Island, Sunday, 6 September
Climate normal for this date — 60-year average.
0.17Long Island, 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 Long Island, ME 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 Long Island, ME 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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