Monthly outlook for Grand Isle, ME: average high 46.5°, average low 37°. That is 3.4° above the climate normal for November. Precipitation is expected on 8 days (about 2.4 inches), against a normal of 6 days and 2.0 inches. The warmest day looks like 6 November (62.7°), the coolest 17 November (22.7°).
46.5°/37°
Average high / low
+3.4°
Above normal
8 / 6
Wet days / normal
2.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
2 November – 11 November
52.5°
42°
+5.8°
12 November – 21 November
36.3°
36.2°
+0.1°
22 November – 1 December
at normal
32.2°
—
November records over 66 years
69.3°6 November 2022All-time high
-11°30 November 1995All-time low
Climate normals and records are computed from the nearest reference point — Saint David (8 mi).
Tue, 0345° / 40°0.12
45 °
Grand Isle, Tuesday, 3 November
Light rain. High 45°, low 40°.
Pressure30.30 inHg
Wind1.8 mph SE
Humidity60%
Visibility6.2 mi
Dew point31°
Wed, 0450° / 42°0.76
50 °
Grand Isle, Wednesday, 4 November
Rain. High 50°, low 42°.
Pressure29.97 inHg
Wind6.2 mph S
Humidity99%
Visibility6.2 mi
Dew point48°
Thu, 0562° / 45°0.15
62 °
Grand Isle, Thursday, 5 November
Rain. High 62°, low 45°.
Pressure29.80 inHg
Wind5.7 mph S
Humidity73%
Visibility6.2 mi
Dew point53°
Fri, 0663° / 50°0.01
63 °
Grand Isle, Friday, 6 November
Light rain. High 63°, low 50°.
Pressure29.83 inHg
Wind7 mph SW
Humidity91%
Visibility—
Dew point56°
Sat, 0757° / 52°0.54
57 °
Grand Isle, Saturday, 7 November
Rain. High 57°, low 52°.
Pressure29.80 inHg
Wind11.5 mph SE
Humidity99%
Visibility—
Dew point55°
Sun, 0854° / 42°0.25
54 °
Grand Isle, Sunday, 8 November
Rain. High 54°, low 42°.
Pressure29.68 inHg
Wind17.3 mph SE
Humidity84%
Visibility—
Dew point48°
Mon, 0950° / 41°0.02
50 °
Grand Isle, Monday, 9 November
Light rain. High 50°, low 41°.
Pressure29.94 inHg
Wind13.6 mph E
Humidity74%
Visibility—
Dew point40°
Tue, 1048° / 39°0.12
48 °
Grand Isle, Tuesday, 10 November
Light rain. High 48°, low 39°.
Pressure29.41 inHg
Wind14.4 mph S
Humidity79%
Visibility—
Dew point41°
Wed, 1138° / 32°0.01
38 °
Grand Isle, Wednesday, 11 November
Snow. High 38°, low 32°.
Pressure29.50 inHg
Wind10.3 mph SW
Humidity65%
Visibility—
Dew point26°
Thu, 1237° / 30°0
37 °
Grand Isle, Thursday, 12 November
Overcast. High 37°, low 30°.
Pressure29.56 inHg
Wind11.3 mph W
Humidity68%
Visibility—
Dew point26°
Fri, 1339° / 29°0
39 °
Grand Isle, Friday, 13 November
Mostly clear. High 39°, low 29°.
Pressure29.80 inHg
Wind9.6 mph W
Humidity64%
Visibility—
Dew point25°
Sat, 1438° / 27°0
38 °
Grand Isle, Saturday, 14 November
Clear. High 38°, low 27°.
Pressure30.06 inHg
Wind4.1 mph W
Humidity63%
Visibility—
Dew point24°
Sun, 1540° / 27°0.04
40 °
Grand Isle, Sunday, 15 November
Light snow. High 40°, low 27°.
Pressure29.65 inHg
Wind9.5 mph SW
Humidity60%
Visibility—
Dew point23°
Mon, 1634° / 29°0.31
34 °
Grand Isle, Monday, 16 November
Snow. High 34°, low 29°.
Pressure29.29 inHg
Wind5.9 mph S
Humidity100%
Visibility—
Dew point34°
Tue, 1729° / 23°0.02
29 °
Grand Isle, Tuesday, 17 November
Light snow. High 29°, low 23°.
Pressure29.50 inHg
Wind12 mph NW
Humidity79%
Visibility—
Dew point21°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 1835° / 23°0.12
35 °
Grand Isle, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high35°
Average low23°
Average precipitation0.12 in
Chance of precipitation28%
Record high55° (1987)
Record low-3° (2019)
Thu, 1934° / 22°0.08
34 °
Grand Isle, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high34°
Average low22°
Average precipitation0.08 in
Chance of precipitation30%
Record high52° (2001)
Record low-2° (2018)
Fri, 2035° / 23°0.13
35 °
Grand Isle, Friday, 20 November
Climate normal for this date — 60-year average.
Average high35°
Average low23°
Average precipitation0.13 in
Chance of precipitation45%
Record high53° (1991)
Record low1° (1986)
Sat, 2134° / 22°0.16
34 °
Grand Isle, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high34°
Average low22°
Average precipitation0.16 in
Chance of precipitation40%
Record high54° (1991)
Record low0° (1973)
Sun, 2234° / 22°0.13
34 °
Grand Isle, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high34°
Average low22°
Average precipitation0.13 in
Chance of precipitation45%
Record high46° (1999)
Record low3° (1964)
Mon, 2333° / 22°0.09
33 °
Grand Isle, Monday, 23 November
Climate normal for this date — 60-year average.
Average high33°
Average low22°
Average precipitation0.09 in
Chance of precipitation37%
Record high53° (1963)
Record low-6° (1964)
Tue, 2433° / 20°0.08
33 °
Grand Isle, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high33°
Average low20°
Average precipitation0.08 in
Chance of precipitation42%
Record high51° (1999)
Record low1° (1964)
Wed, 2532° / 20°0.14
32 °
Grand Isle, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high32°
Average low20°
Average precipitation0.14 in
Chance of precipitation33%
Record high53° (2014)
Record low-1° (1965)
Thu, 2633° / 20°0.15
33 °
Grand Isle, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high33°
Average low20°
Average precipitation0.15 in
Chance of precipitation55%
Record high51° (2001)
Record low2° (1962)
Fri, 2732° / 20°0.18
32 °
Grand Isle, Friday, 27 November
Climate normal for this date — 60-year average.
Average high32°
Average low20°
Average precipitation0.18 in
Chance of precipitation47%
Record high54° (1999)
Record low-5° (1985)
Sat, 2832° / 19°0.13
32 °
Grand Isle, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high32°
Average low19°
Average precipitation0.13 in
Chance of precipitation50%
Record high49° (1993)
Record low-6° (1969)
Sun, 2931° / 18°0.13
31 °
Grand Isle, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high31°
Average low18°
Average precipitation0.13 in
Chance of precipitation40%
Record high53° (2003)
Record low-4° (2002)
Mon, 3031° / 16°0.1
31 °
Grand Isle, Monday, 30 November
Climate normal for this date — 60-year average.
Average high31°
Average low16°
Average precipitation0.1 in
Chance of precipitation33%
Record high55° (2011)
Record low-11° (1995)
Tue, 0131° / 18°0.17
31 °
Grand Isle, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high31°
Average low18°
Average precipitation0.17 in
Chance of precipitation45%
Record high56° (2020)
Record low-2° (1989)
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.