As of 11:10 EST

Weather in Grand Isle, ME

35°Current weather

Grand Isle, Thursday, 12 November, 11:10

Overcast. Feels like 28°. High 37°, low 29°.

Pressure29.71 inHg
Wind10.4 mph W
Humidity64%
Visibility6.2 mi
Dew point26°

Monthly outlook for Grand Isle, ME: average high 43.1°, average low 31.7°. That is 4.6° above the climate normal for November. Precipitation is expected on 6 days (about 0.9 inches), against a normal of 6 days and 2.1 inches. The warmest day looks like 25 November (55.1°), the coolest 22 November (22.6°).

43.1°/31.7°
Average high / low
+4.6°
Above normal
6 / 6
Wet days / normal
0.9 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
12 November – 21 November42.2°36.2°+3.3°
22 November – 1 December44.7°32.2°+7°
2 December – 11 Decemberat normal26.8°—

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).

Fri, 1337° / 29°0Overcast
37 °Overcast

Grand Isle, Friday, 13 November

Overcast. High 37°, low 29°.

Pressure29.59 inHg
Wind6.9 mph NW
Humidity78%
Visibility6.2 mi
Dew point26°
Sat, 1437° / 30°0.07Snow
37 °Snow

Grand Isle, Saturday, 14 November

Snow. High 37°, low 30°.

Pressure29.62 inHg
Wind2.8 mph N
Humidity81%
Visibility6.2 mi
Dew point31°
Sun, 1538° / 31°0.01Light rain
38 °Light rain

Grand Isle, Sunday, 15 November

Light rain. High 38°, low 31°.

Pressure29.85 inHg
Wind8.5 mph NW
Humidity82%
Visibility6.2 mi
Dew point31°
Mon, 1636° / 27°0Overcast
36 °Overcast

Grand Isle, Monday, 16 November

Overcast. High 36°, low 27°.

Pressure30.18 inHg
Wind12.2 mph NW
Humidity83%
Visibility—
Dew point29°
Tue, 1746° / 27°0Overcast
46 °Overcast

Grand Isle, Tuesday, 17 November

Overcast. High 46°, low 27°.

Pressure30.15 inHg
Wind8.1 mph W
Humidity73%
Visibility—
Dew point29°
Wed, 1848° / 32°0Overcast
48 °Overcast

Grand Isle, Wednesday, 18 November

Overcast. High 48°, low 32°.

Pressure30.15 inHg
Wind11.5 mph W
Humidity72%
Visibility—
Dew point35°
Thu, 1951° / 39°0Overcast
51 °Overcast

Grand Isle, Thursday, 19 November

Overcast. High 51°, low 39°.

Pressure30.24 inHg
Wind10.1 mph SW
Humidity74%
Visibility—
Dew point37°
Fri, 2053° / 38°0Clear
53 °Clear

Grand Isle, Friday, 20 November

Clear. High 53°, low 38°.

Pressure29.85 inHg
Wind14 mph W
Humidity66%
Visibility—
Dew point37°
Sat, 2139° / 26°0.06Snow
39 °Snow

Grand Isle, Saturday, 21 November

Snow. High 39°, low 26°.

Pressure30.09 inHg
Wind11.8 mph NW
Humidity55%
Visibility—
Dew point17°
Sun, 2234° / 23°0.08Light snow
34 °Light snow

Grand Isle, Sunday, 22 November

Light snow. High 34°, low 23°.

Pressure30.27 inHg
Wind8.1 mph S
Humidity51%
Visibility—
Dew point13°
Mon, 2348° / 36°0.22Light rain
48 °Light rain

Grand Isle, Monday, 23 November

Light rain. High 48°, low 36°.

Pressure29.94 inHg
Wind9.9 mph SW
Humidity92%
Visibility—
Dew point40°
Tue, 2453° / 41°0Overcast
53 °Overcast

Grand Isle, Tuesday, 24 November

Overcast. High 53°, low 41°.

Pressure30.09 inHg
Wind7.8 mph SW
Humidity81%
Visibility—
Dew point42°
Wed, 2555° / 44°0.42Rain
55 °Rain

Grand Isle, Wednesday, 25 November

Rain. High 55°, low 44°.

Pressure29.97 inHg
Wind10.4 mph S
Humidity98%
Visibility—
Dew point48°
Thu, 2645° / 30°0.09Snow
45 °Snow

Grand Isle, Thursday, 26 November

Snow. High 45°, low 30°.

Pressure29.88 inHg
Wind15.7 mph W
Humidity67%
Visibility—
Dew point28°
Fri, 2735° / 26°0Overcast
35 °Overcast

Grand Isle, Friday, 27 November

Overcast. High 35°, low 26°.

Pressure30.53 inHg
Wind8.7 mph W
Humidity55%
Visibility—
Dew point16°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2832° / 19°0.13Climate normal
32 °Climate normal

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°0.13Climate normal
31 °Climate normal

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°0.1Climate normal
31 °Climate normal

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°0.17Climate normal
31 °Climate normal

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)
Wed, 0231° / 17°0.16Climate normal
31 °Climate normal

Grand Isle, Wednesday, 2 December

Climate normal for this date — 60-year average.

Average high31°
Average low17°
Average precipitation0.16 in
Chance of precipitation45%
Record high54° (2020)
Record low-5° (1972)
Thu, 0329° / 17°0.16Climate normal
29 °Climate normal

Grand Isle, Thursday, 3 December

Climate normal for this date — 60-year average.

Average high29°
Average low17°
Average precipitation0.16 in
Chance of precipitation45%
Record high43° (2022)
Record low-10° (1964)
Fri, 0429° / 16°0.13Climate normal
29 °Climate normal

Grand Isle, Friday, 4 December

Climate normal for this date — 60-year average.

Average high29°
Average low16°
Average precipitation0.13 in
Chance of precipitation45%
Record high52° (1982)
Record low-19° (1972)
Sat, 0526° / 12°0.08Climate normal
26 °Climate normal

Grand Isle, Saturday, 5 December

Climate normal for this date — 60-year average.

Average high26°
Average low12°
Average precipitation0.08 in
Chance of precipitation32%
Record high44° (1990)
Record low-14° (1972)
Sun, 0629° / 13°0.17Climate normal
29 °Climate normal

Grand Isle, Sunday, 6 December

Climate normal for this date — 60-year average.

Average high29°
Average low13°
Average precipitation0.17 in
Chance of precipitation43%
Record high51° (1982)
Record low-13° (1991)
Mon, 0727° / 13°0.12Climate normal
27 °Climate normal

Grand Isle, Monday, 7 December

Climate normal for this date — 60-year average.

Average high27°
Average low13°
Average precipitation0.12 in
Chance of precipitation45%
Record high44° (2021)
Record low-15° (1991)
Tue, 0824° / 9°0.07Climate normal
24 °Climate normal

Grand Isle, Tuesday, 8 December

Climate normal for this date — 60-year average.

Average high24°
Average low9°
Average precipitation0.07 in
Chance of precipitation33%
Record high44° (1974)
Record low-14° (2014)
Wed, 0923° / 8°0.08Climate normal
23 °Climate normal

Grand Isle, Wednesday, 9 December

Climate normal for this date — 60-year average.

Average high23°
Average low8°
Average precipitation0.08 in
Chance of precipitation40%
Record high46° (1974)
Record low-18° (1970)
Thu, 1025° / 10°0.14Climate normal
25 °Climate normal

Grand Isle, Thursday, 10 December

Climate normal for this date — 60-year average.

Average high25°
Average low10°
Average precipitation0.14 in
Chance of precipitation52%
Record high49° (2019)
Record low-19° (1976)
Fri, 1125° / 10°0.21Climate normal
25 °Climate normal

Grand Isle, Friday, 11 December

Climate normal for this date — 60-year average.

Average high25°
Average low10°
Average precipitation0.21 in
Chance of precipitation37%
Record high50° (1966)
Record low-16° (1988)

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.