As of 07:16 EST

Weather in Islesboro, ME

37°

Islesboro, Tuesday, 10 November, 07:16

Overcast. Feels like 37°. High 50°, low 37°.

Pressure29.85 inHg

Wind0.4 mph SW

Humidity84%

Visibility6.2 mi

Dew point33°

See detailed hourly forecast

Monthly outlook for Islesboro, ME: average high 47.9°, average low 38.8°. That is 2.4° above the climate normal for November. Precipitation is expected on 6 days (about 1.6 inches), against a normal of 6 days and 2.3 inches. The warmest day looks like 24 November (57.6°), the coolest 19 November (34.1°).

47.9°/38.8°

Average high / low

+2.4°

Above normal

6 / 6

Wet days / normal

1.6 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
10 November – 19 November	45.8°	44.7°	+0.6°
20 November – 29 November	51.3°	41.6°	+5.4°
30 November – 9 December	at normal	38.3°	—

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).

Wed, 1147° / 37°

47 °

Islesboro, Wednesday, 11 November

Overcast. High 47°, low 37°.

Pressure29.80 inHg

Wind11.1 mph NW

Humidity55%

Visibility6.2 mi

Dew point30°

Thu, 1246° / 34°

46 °

Islesboro, Thursday, 12 November

Overcast. High 46°, low 34°.

Pressure29.77 inHg

Wind1.9 mph E

Humidity57%

Visibility6.2 mi

Dew point25°

Fri, 1341° / 37°

0.05

41 °

Islesboro, Friday, 13 November

Light rain. High 41°, low 37°.

Pressure29.59 inHg

Wind12.1 mph N

Humidity67%

Visibility6.2 mi

Dew point28°

Sat, 1442° / 37°

0.11

42 °

Islesboro, Saturday, 14 November

Light rain. High 42°, low 37°.

Pressure29.59 inHg

Wind12 mph N

Humidity84%

Visibility—

Dew point35°

Sun, 1547° / 40°

0.01

47 °

Islesboro, Sunday, 15 November

Light rain. High 47°, low 40°.

Pressure29.94 inHg

Wind12.6 mph N

Humidity60%

Visibility—

Dew point31°

Mon, 1646° / 35°

46 °

Islesboro, Monday, 16 November

Clear. High 46°, low 35°.

Pressure30.36 inHg

Wind8.9 mph NW

Humidity68%

Visibility—

Dew point31°

Tue, 1747° / 35°

47 °

Islesboro, Tuesday, 17 November

Clear. High 47°, low 35°.

Pressure30.42 inHg

Wind7.7 mph NW

Humidity55%

Visibility—

Dew point26°

Wed, 1845° / 35°

45 °

Islesboro, Wednesday, 18 November

Mostly clear. High 45°, low 35°.

Pressure30.33 inHg

Wind12.8 mph NW

Humidity63%

Visibility—

Dew point29°

Thu, 1948° / 34°

48 °

Islesboro, Thursday, 19 November

Clear. High 48°, low 34°.

Pressure30.47 inHg

Wind11.2 mph NW

Humidity64%

Visibility—

Dew point30°

Fri, 2051° / 39°

51 °

Islesboro, Friday, 20 November

Overcast. High 51°, low 39°.

Pressure30.42 inHg

Wind6.7 mph SW

Humidity64%

Visibility—

Dew point33°

Sat, 2152° / 41°

52 °

Islesboro, Saturday, 21 November

Overcast. High 52°, low 41°.

Pressure30.12 inHg

Wind8.8 mph S

Humidity63%

Visibility—

Dew point35°

Sun, 2255° / 48°

0.29

55 °

Islesboro, Sunday, 22 November

Light rain. High 55°, low 48°.

Pressure29.94 inHg

Wind13.3 mph E

Humidity94%

Visibility—

Dew point51°

Mon, 2347° / 44°

0.11

47 °

Islesboro, Monday, 23 November

Light rain. High 47°, low 44°.

Pressure30.18 inHg

Wind11 mph NE

Humidity92%

Visibility—

Dew point42°

Tue, 2458° / 47°

0.93

58 °

Islesboro, Tuesday, 24 November

Rain. High 58°, low 47°.

Pressure29.59 inHg

Wind25.5 mph S

Humidity98%

Visibility—

Dew point56°

Wed, 2546° / 41°

46 °

Islesboro, Wednesday, 25 November

Clear. High 46°, low 41°.

Pressure29.88 inHg

Wind19.3 mph SW

Humidity62%

Visibility—

Dew point31°

From day 17 onward the outlook is built from 60-year climate statistics

Thu, 2642° / 33°

0.2

42 °

Islesboro, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high42°

Average low33°

Average precipitation0.2 in

Chance of precipitation53%

Record high55° (1979)

Record low14° (1978)

Fri, 2742° / 32°

0.18

42 °

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°

0.19

42 °

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°

0.14

41 °

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°

0.13

40 °

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°

0.18

41 °

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°

0.15

40 °

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°

0.2

40 °

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°

0.15

38 °

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°

0.15

36 °

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°

0.17

39 °

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°

0.18

38 °

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°

0.11

34 °

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°

0.16

36 °

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)

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.