Monthly outlook for Islesboro, ME: average high 54°, average low 45.1°. That is 3.1° above the climate normal for October. Precipitation is expected on 6 days (about 6.0 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 30 October (62.6°), the coolest 1 November (33.1°).
54°/45.1°
Average high / low
+3.1°
Above normal
6 / 5
Wet days / normal
6.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
29 October – 7 November
54.7°
49.8°
+2.7°
8 November – 17 November
52.8°
45.4°
+4.1°
18 November – 27 November
at normal
42°
—
October records over 66 years
80.6°10 October 2018All-time high
27°31 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Rockport (14 mi).
Fri, 3063° / 46°0.02
63 °
Islesboro, Friday, 30 October
Light rain. High 63°, low 46°.
Pressure29.88 inHg
Wind11.4 mph NW
Humidity58%
Visibility6.2 mi
Dew point45°
Sat, 3147° / 36°0
47 °
Islesboro, Saturday, 31 October
Partly cloudy. High 47°, low 36°.
Pressure30.30 inHg
Wind11.5 mph NW
Humidity55%
Visibility6.2 mi
Dew point26°
Sun, 0152° / 33°0
52 °
Islesboro, Sunday, 1 November
Clear. High 52°, low 33°.
Pressure30.36 inHg
Wind7.4 mph W
Humidity51%
Visibility6.2 mi
Dew point31°
Mon, 0261° / 41°0
61 °
Islesboro, Monday, 2 November
Mostly clear. High 61°, low 41°.
Pressure30.15 inHg
Wind7.3 mph W
Humidity58%
Visibility—
Dew point39°
Tue, 0355° / 40°0
55 °
Islesboro, Tuesday, 3 November
Overcast. High 55°, low 40°.
Pressure30.18 inHg
Wind8.9 mph SE
Humidity75%
Visibility—
Dew point46°
Wed, 0449° / 37°0
49 °
Islesboro, Wednesday, 4 November
Overcast. High 49°, low 37°.
Pressure30.45 inHg
Wind12.2 mph SW
Humidity51%
Visibility—
Dew point27°
Thu, 0550° / 48°0.04
50 °
Islesboro, Thursday, 5 November
Light rain. High 50°, low 48°.
Pressure30.42 inHg
Wind14.2 mph S
Humidity82%
Visibility—
Dew point43°
Fri, 0655° / 51°0.66
55 °
Islesboro, Friday, 6 November
Heavy rain. High 55°, low 51°.
Pressure30.12 inHg
Wind22.5 mph SE
Humidity86%
Visibility—
Dew point49°
Sat, 0756° / 55°2.07
56 °
Islesboro, Saturday, 7 November
Heavy rain. High 56°, low 55°.
Pressure29.68 inHg
Wind22.1 mph S
Humidity99%
Visibility—
Dew point56°
Sun, 0855° / 51°1.59
55 °
Islesboro, Sunday, 8 November
Heavy rain. High 55°, low 51°.
Pressure29.80 inHg
Wind26.1 mph E
Humidity98%
Visibility—
Dew point54°
Mon, 0952° / 50°0.77
52 °
Islesboro, Monday, 9 November
Rain. High 52°, low 50°.
Pressure29.74 inHg
Wind28.2 mph NE
Humidity92%
Visibility—
Dew point49°
Tue, 1053° / 52°0.67
53 °
Islesboro, Tuesday, 10 November
Rain. High 53°, low 52°.
Pressure29.59 inHg
Wind17.8 mph NE
Humidity96%
Visibility—
Dew point52°
Wed, 1155° / 48°0.02
55 °
Islesboro, Wednesday, 11 November
Light rain. High 55°, low 48°.
Pressure29.68 inHg
Wind13.4 mph S
Humidity87%
Visibility—
Dew point50°
Thu, 1252° / 46°0.01
52 °
Islesboro, Thursday, 12 November
Light rain. High 52°, low 46°.
Pressure29.91 inHg
Wind15.6 mph SW
Humidity69%
Visibility—
Dew point39°
Fri, 1350° / 49°0.16
50 °
Islesboro, Friday, 13 November
Rain. High 50°, low 49°.
Pressure29.74 inHg
Wind11.5 mph SW
Humidity94%
Visibility—
Dew point47°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 1444° / 35°0.11
44 °
Islesboro, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high44°
Average low35°
Average precipitation0.11 in
Chance of precipitation37%
Record high57° (1973)
Record low15° (1986)
Sun, 1545° / 35°0.16
45 °
Islesboro, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high45°
Average low35°
Average precipitation0.16 in
Chance of precipitation40%
Record high59° (1994)
Record low17° (2018)
Mon, 1644° / 35°0.2
44 °
Islesboro, Monday, 16 November
Climate normal for this date — 60-year average.
Average high44°
Average low35°
Average precipitation0.2 in
Chance of precipitation35%
Record high58° (2008)
Record low16° (2019)
Tue, 1744° / 34°0.13
44 °
Islesboro, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high44°
Average low34°
Average precipitation0.13 in
Chance of precipitation27%
Record high58° (2006)
Record low21° (2019)
Wed, 1843° / 34°0.1
43 °
Islesboro, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high43°
Average low34°
Average precipitation0.1 in
Chance of precipitation28%
Record high59° (1987)
Record low22° (2018)
Thu, 1943° / 33°0.08
43 °
Islesboro, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high43°
Average low33°
Average precipitation0.08 in
Chance of precipitation25%
Record high56° (2021)
Record low20° (2018)
Fri, 2043° / 33°0.15
43 °
Islesboro, Friday, 20 November
Climate normal for this date — 60-year average.
Average high43°
Average low33°
Average precipitation0.15 in
Chance of precipitation35%
Record high57° (1991)
Record low19° (1986)
Sat, 2143° / 33°0.17
43 °
Islesboro, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high43°
Average low33°
Average precipitation0.17 in
Chance of precipitation30%
Record high57° (1991)
Record low19° (2022)
Sun, 2242° / 33°0.2
42 °
Islesboro, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high42°
Average low33°
Average precipitation0.2 in
Chance of precipitation42%
Record high55° (1992)
Record low5° (2018)
Mon, 2341° / 31°0.13
41 °
Islesboro, Monday, 23 November
Climate normal for this date — 60-year average.
Average high41°
Average low31°
Average precipitation0.13 in
Chance of precipitation27%
Record high60° (1999)
Record low8° (2018)
Tue, 2441° / 31°0.09
41 °
Islesboro, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high41°
Average low31°
Average precipitation0.09 in
Chance of precipitation35%
Record high56° (2014)
Record low12° (1989)
Wed, 2541° / 31°0.16
41 °
Islesboro, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high41°
Average low31°
Average precipitation0.16 in
Chance of precipitation35%
Record high56° (2014)
Record low16° (1993)
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)
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.