Weather in Grand Isle, ME
Grand Isle, Sunday, 1 November, 23:04
Clear. Feels like 39°. High 51°, low 34°.
Monthly outlook for Grand Isle, ME: average high 46.8°, average low 34.7°. That is 3.3° above the climate normal for November. Precipitation is expected on 3 days (about 3.1 inches), against a normal of 6 days and 2.0 inches. The warmest day looks like 5 November (64°), the coolest 13 November (23.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 1 November – 10 November | 50.8° | 42.6° | +4.5° |
| 11 November – 20 November | 40.2° | 36.8° | +1.9° |
| 21 November – 30 November | at normal | 32.5° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Saint David (8 mi).
0
Grand Isle, Monday, 2 November
Overcast. High 57°, low 45°.
0.02
Grand Isle, Tuesday, 3 November
Light rain. High 50°, low 39°.
1.03Grand Isle, Wednesday, 4 November
Rain. High 49°, low 39°.
0.02Grand Isle, Thursday, 5 November
Light rain. High 64°, low 47°.
0Grand Isle, Friday, 6 November
Overcast. High 58°, low 42°.
0.5Grand Isle, Saturday, 7 November
Rain. High 49°, low 37°.
1.52Grand Isle, Sunday, 8 November
Heavy rain. High 49°, low 39°.
0Grand Isle, Monday, 9 November
Overcast. High 40°, low 33°.
0
Grand Isle, Tuesday, 10 November
Partly cloudy. High 40°, low 29°.
0
Grand Isle, Wednesday, 11 November
Mostly clear. High 38°, low 27°.
0Grand Isle, Thursday, 12 November
Overcast. High 35°, low 24°.
0
Grand Isle, Friday, 13 November
Clear. High 36°, low 23°.
0Grand Isle, Saturday, 14 November
Overcast. High 41°, low 32°.
0.02Grand Isle, Sunday, 15 November
Light rain. High 51°, low 37°.
0.01
Grand Isle, Monday, 16 November
Light snow. High 40°, low 29°.
0.11
Grand Isle, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.12Grand Isle, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.08Grand Isle, Thursday, 19 November
Climate normal for this date — 60-year average.
0.13Grand Isle, Friday, 20 November
Climate normal for this date — 60-year average.
0.16Grand Isle, Saturday, 21 November
Climate normal for this date — 60-year average.
0.13Grand Isle, Sunday, 22 November
Climate normal for this date — 60-year average.
0.09Grand Isle, Monday, 23 November
Climate normal for this date — 60-year average.
0.08Grand Isle, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.14Grand Isle, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.15Grand Isle, Thursday, 26 November
Climate normal for this date — 60-year average.
0.18Grand Isle, Friday, 27 November
Climate normal for this date — 60-year average.
0.13Grand Isle, Saturday, 28 November
Climate normal for this date — 60-year average.
0.13Grand Isle, Sunday, 29 November
Climate normal for this date — 60-year average.
0.1Grand Isle, Monday, 30 November
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 Grand Isle, 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 Grand Isle, 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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