As of 13:50 EST

Weather in Islesboro, ME

49°Current weather

Islesboro, Wednesday, 11 November, 13:50

Overcast. Feels like 49°. High 49°, low 42°.

Pressure29.83 inHg
Wind2 mph NE
Humidity60%
Visibility6.2 mi
Dew point36°

Monthly outlook for Islesboro, ME: average high 45.7°, average low 36.7°. That is 1.4° above the climate normal for November. Precipitation is expected on 2 days (about 0.4 inches), against a normal of 6 days and 2.3 inches. The warmest day looks like 22 November (53.4°), the coolest 26 November (30.1°).

45.7°/36.7°
Average high / low
+1.4°
Above normal
2 / 6
Wet days / normal
0.4 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
11 November – 20 November46.1°44.2°+1.1°
21 November – 30 November45°41.4°+2°
1 December – 10 Decemberat normal38°—

November records over 66 years

73.4°1 November 2024All-time high
5°22 November 2018All-time low

Climate normals and records are computed from the nearest reference point — Rockport (14 mi).

Thu, 1246° / 37°0.02Snow
46 °Snow

Islesboro, Thursday, 12 November

Snow. High 46°, low 37°.

Pressure29.80 inHg
Wind1.9 mph E
Humidity57%
Visibility6.2 mi
Dew point28°
Fri, 1344° / 33°0.03Light rain
44 °Light rain

Islesboro, Friday, 13 November

Light rain. High 44°, low 33°.

Pressure29.56 inHg
Wind10.4 mph N
Humidity65%
Visibility6.2 mi
Dew point27°
Sat, 1444° / 33°0.02Light rain
44 °Light rain

Islesboro, Saturday, 14 November

Light rain. High 44°, low 33°.

Pressure29.62 inHg
Wind9 mph NW
Humidity63%
Visibility6.2 mi
Dew point32°
Sun, 1545° / 34°0Mostly clear
45 °Mostly clear

Islesboro, Sunday, 15 November

Mostly clear. High 45°, low 34°.

Pressure29.91 inHg
Wind10.2 mph NW
Humidity60%
Visibility6.2 mi
Dew point28°
Mon, 1645° / 33°0Mostly clear
45 °Mostly clear

Islesboro, Monday, 16 November

Mostly clear. High 45°, low 33°.

Pressure30.27 inHg
Wind8.8 mph NW
Humidity68%
Visibility—
Dew point30°
Tue, 1748° / 36°0Clear
48 °Clear

Islesboro, Tuesday, 17 November

Clear. High 48°, low 36°.

Pressure30.39 inHg
Wind6.9 mph SW
Humidity56%
Visibility—
Dew point28°
Wed, 1846° / 37°0Overcast
46 °Overcast

Islesboro, Wednesday, 18 November

Overcast. High 46°, low 37°.

Pressure30.33 inHg
Wind6 mph N
Humidity61%
Visibility—
Dew point30°
Thu, 1951° / 37°0Overcast
51 °Overcast

Islesboro, Thursday, 19 November

Overcast. High 51°, low 37°.

Pressure30.18 inHg
Wind14.6 mph N
Humidity58%
Visibility—
Dew point30°
Fri, 2045° / 44°0.22Light rain
45 °Light rain

Islesboro, Friday, 20 November

Light rain. High 45°, low 44°.

Pressure29.91 inHg
Wind16.7 mph N
Humidity86%
Visibility—
Dew point40°
Sat, 2148° / 42°0.01Light rain
48 °Light rain

Islesboro, Saturday, 21 November

Light rain. High 48°, low 42°.

Pressure29.94 inHg
Wind14.9 mph SE
Humidity77%
Visibility—
Dew point38°
Sun, 2253° / 47°0.11Light rain
53 °Light rain

Islesboro, Sunday, 22 November

Light rain. High 53°, low 47°.

Pressure29.68 inHg
Wind20.4 mph S
Humidity75%
Visibility—
Dew point44°
Mon, 2344° / 34°0Clear
44 °Clear

Islesboro, Monday, 23 November

Clear. High 44°, low 34°.

Pressure29.91 inHg
Wind17 mph NW
Humidity64%
Visibility—
Dew point32°
Tue, 2441° / 33°0Clear
41 °Clear

Islesboro, Tuesday, 24 November

Clear. High 41°, low 33°.

Pressure30.27 inHg
Wind6.6 mph NW
Humidity51%
Visibility—
Dew point21°
Wed, 2545° / 34°0Mostly clear
45 °Mostly clear

Islesboro, Wednesday, 25 November

Mostly clear. High 45°, low 34°.

Pressure30.00 inHg
Wind19.9 mph SW
Humidity59%
Visibility—
Dew point29°
Thu, 2639° / 30°0Mostly clear
39 °Mostly clear

Islesboro, Thursday, 26 November

Mostly clear. High 39°, low 30°.

Pressure30.27 inHg
Wind12.6 mph NW
Humidity42%
Visibility—
Dew point14°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2742° / 32°0.18Climate normal
42 °Climate normal

Islesboro, Friday, 27 November

Climate normal for this date — 60-year average.

Average high42°
Average low32°
Average precipitation0.18 in
Chance of precipitation48%
Record high56° (1999)
Record low10° (1978)
Sat, 2842° / 32°0.19Climate normal
42 °Climate normal

Islesboro, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high42°
Average low32°
Average precipitation0.19 in
Chance of precipitation43%
Record high57° (2011)
Record low17° (1982)
Sun, 2941° / 30°0.14Climate normal
41 °Climate normal

Islesboro, Sunday, 29 November

Climate normal for this date — 60-year average.

Average high41°
Average low30°
Average precipitation0.14 in
Chance of precipitation40%
Record high56° (1990)
Record low11° (1989)
Mon, 3040° / 30°0.13Climate normal
40 °Climate normal

Islesboro, Monday, 30 November

Climate normal for this date — 60-year average.

Average high40°
Average low30°
Average precipitation0.13 in
Chance of precipitation25%
Record high56° (2011)
Record low11° (1989)
Tue, 0141° / 30°0.18Climate normal
41 °Climate normal

Islesboro, Tuesday, 1 December

Climate normal for this date — 60-year average.

Average high41°
Average low30°
Average precipitation0.18 in
Chance of precipitation30%
Record high57° (2001)
Record low9° (1989)
Wed, 0240° / 29°0.15Climate normal
40 °Climate normal

Islesboro, Wednesday, 2 December

Climate normal for this date — 60-year average.

Average high40°
Average low29°
Average precipitation0.15 in
Chance of precipitation32%
Record high56° (2006)
Record low8° (1989)
Thu, 0340° / 29°0.2Climate normal
40 °Climate normal

Islesboro, Thursday, 3 December

Climate normal for this date — 60-year average.

Average high40°
Average low29°
Average precipitation0.2 in
Chance of precipitation47%
Record high59° (2009)
Record low2° (1976)
Fri, 0438° / 28°0.15Climate normal
38 °Climate normal

Islesboro, Friday, 4 December

Climate normal for this date — 60-year average.

Average high38°
Average low28°
Average precipitation0.15 in
Chance of precipitation27%
Record high60° (1982)
Record low9° (1989)
Sat, 0536° / 26°0.15Climate normal
36 °Climate normal

Islesboro, Saturday, 5 December

Climate normal for this date — 60-year average.

Average high36°
Average low26°
Average precipitation0.15 in
Chance of precipitation27%
Record high52° (2012)
Record low2° (2025)
Sun, 0639° / 28°0.17Climate normal
39 °Climate normal

Islesboro, Sunday, 6 December

Climate normal for this date — 60-year average.

Average high39°
Average low28°
Average precipitation0.17 in
Chance of precipitation38%
Record high60° (2001)
Record low11° (1991)
Mon, 0738° / 27°0.18Climate normal
38 °Climate normal

Islesboro, Monday, 7 December

Climate normal for this date — 60-year average.

Average high38°
Average low27°
Average precipitation0.18 in
Chance of precipitation45%
Record high60° (1998)
Record low8° (1989)
Tue, 0834° / 23°0.11Climate normal
34 °Climate normal

Islesboro, Tuesday, 8 December

Climate normal for this date — 60-year average.

Average high34°
Average low23°
Average precipitation0.11 in
Chance of precipitation33%
Record high51° (2022)
Record low6° (1989)
Wed, 0936° / 23°0.16Climate normal
36 °Climate normal

Islesboro, Wednesday, 9 December

Climate normal for this date — 60-year average.

Average high36°
Average low23°
Average precipitation0.16 in
Chance of precipitation43%
Record high50° (1974)
Record low0° (2025)
Thu, 1038° / 26°0.13Climate normal
38 °Climate normal

Islesboro, Thursday, 10 December

Climate normal for this date — 60-year average.

Average high38°
Average low26°
Average precipitation0.13 in
Chance of precipitation42%
Record high53° (2023)
Record low0° (1976)

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 Islesboro, 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 Islesboro, 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.