Weather in Chebeague Island, ME
Chebeague Island, Sunday, 9 August, 11:50
Clear. Feels like 88°. High 87°, low 68°.
Monthly outlook for Chebeague Island, ME: average high 76°, average low 63.4°. That is 0.9° above the climate normal for August. Precipitation is expected on 7 days (about 2.0 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 9 August (86.8°), the coolest 24 August (58.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 77.3° | 75° | +1.3° |
| 19 August – 28 August | 73.8° | 73.4° | +0.3° |
| 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 (9 mi).
0.05
Chebeague Island, Monday, 10 August
Light rain. High 79°, low 70°.
0.02Chebeague Island, Tuesday, 11 August
Light rain. High 80°, low 64°.
0.06Chebeague Island, Wednesday, 12 August
Light rain. High 79°, low 64°.
0.2Chebeague Island, Thursday, 13 August
Light rain. High 78°, low 63°.
0
Chebeague Island, Friday, 14 August
Overcast. High 74°, low 59°.
0Chebeague Island, Saturday, 15 August
Clear. High 76°, low 61°.
0Chebeague Island, Sunday, 16 August
Clear. High 76°, low 59°.
0.07Chebeague Island, Monday, 17 August
Light rain. High 70°, low 62°.
0.08Chebeague Island, Tuesday, 18 August
Light rain. High 73°, low 61°.
0Chebeague Island, Wednesday, 19 August
Overcast. High 69°, low 61°.
0.15Chebeague Island, Thursday, 20 August
Light rain. High 73°, low 65°.
0Chebeague Island, Friday, 21 August
Overcast. High 74°, low 64°.
0
Chebeague Island, Saturday, 22 August
Mostly clear. High 76°, low 66°.
1.32Chebeague Island, Sunday, 23 August
Heavy rain. High 79°, low 67°.
0Chebeague Island, Monday, 24 August
Clear. High 73°, low 59°.
0.11
Chebeague Island, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.04Chebeague Island, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.05Chebeague Island, Thursday, 27 August
Climate normal for this date — 60-year average.
0.14Chebeague Island, Friday, 28 August
Climate normal for this date — 60-year average.
0.15Chebeague Island, Saturday, 29 August
Climate normal for this date — 60-year average.
0.14Chebeague Island, Sunday, 30 August
Climate normal for this date — 60-year average.
0.09Chebeague Island, Monday, 31 August
Climate normal for this date — 60-year average.
0.03Chebeague Island, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.11Chebeague Island, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.11Chebeague Island, Thursday, 3 September
Climate normal for this date — 60-year average.
0.14
Chebeague Island, Friday, 4 September
Climate normal for this date — 60-year average.
0.08Chebeague Island, Saturday, 5 September
Climate normal for this date — 60-year average.
0.12Chebeague Island, Sunday, 6 September
Climate normal for this date — 60-year average.
0.17Chebeague 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 Chebeague 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 Chebeague 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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