Monthly outlook for Deer Isle, ME: average high 49.3°, average low 42.2°. That is 1.8° above the climate normal for November. Precipitation is expected on 4 days (about 2.1 inches), against a normal of 6 days and 2.4 inches. The warmest day looks like 5 November (62.6°), the coolest 13 November (33.8°).
49.3°/42.2°
Average high / low
+1.8°
Above normal
4 / 6
Wet days / normal
2.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
5 November – 14 November
49.9°
47.2°
+1.5°
15 November – 24 November
48.4°
43.6°
+2.7°
25 November – 4 December
at normal
41.8°
—
November records over 66 years
62.6°1 November 2024All-time high
11.1°27 November 1978All-time low
Climate normals and records are computed from the nearest reference point — Stonington (4 mi).
Fri, 0660° / 55°0.09
60 °
Deer Isle, Friday, 6 November
Light rain. High 60°, low 55°.
Pressure29.85 inHg
Wind6.6 mph SW
Humidity91%
Visibility4.7 mi
Dew point54°
Sat, 0755° / 46°1.76
55 °
Deer Isle, Saturday, 7 November
Heavy rain. High 55°, low 46°.
Pressure29.83 inHg
Wind16 mph NE
Humidity95%
Visibility3.7 mi
Dew point47°
Sun, 0848° / 44°0.18
48 °
Deer Isle, Sunday, 8 November
Light rain. High 48°, low 44°.
Pressure29.53 inHg
Wind15.4 mph NW
Humidity87%
Visibility6.2 mi
Dew point42°
Mon, 0952° / 44°0
52 °
Deer Isle, Monday, 9 November
Partly cloudy. High 52°, low 44°.
Pressure29.59 inHg
Wind12.8 mph W
Humidity72%
Visibility—
Dew point39°
Tue, 1050° / 43°0.04
50 °
Deer Isle, Tuesday, 10 November
Light rain. High 50°, low 43°.
Pressure29.80 inHg
Wind11.2 mph W
Humidity62%
Visibility—
Dew point34°
Wed, 1148° / 40°0
48 °
Deer Isle, Wednesday, 11 November
Overcast. High 48°, low 40°.
Pressure29.71 inHg
Wind17.7 mph NW
Humidity62%
Visibility—
Dew point34°
Thu, 1242° / 36°0
42 °
Deer Isle, Thursday, 12 November
Clear. High 42°, low 36°.
Pressure29.71 inHg
Wind15.4 mph NW
Humidity59%
Visibility—
Dew point25°
Fri, 1341° / 34°0
41 °
Deer Isle, Friday, 13 November
Partly cloudy. High 41°, low 34°.
Pressure29.88 inHg
Wind7 mph N
Humidity66%
Visibility—
Dew point28°
Sat, 1441° / 35°0
41 °
Deer Isle, Saturday, 14 November
Overcast. High 41°, low 35°.
Pressure29.74 inHg
Wind12.1 mph NW
Humidity69%
Visibility—
Dew point29°
Sun, 1544° / 36°0
44 °
Deer Isle, Sunday, 15 November
Mostly clear. High 44°, low 36°.
Pressure29.97 inHg
Wind15.2 mph N
Humidity63%
Visibility—
Dew point28°
Mon, 1652° / 42°0
52 °
Deer Isle, Monday, 16 November
Clear. High 52°, low 42°.
Pressure30.00 inHg
Wind13.3 mph W
Humidity60%
Visibility—
Dew point33°
Tue, 1749° / 44°0
49 °
Deer Isle, Tuesday, 17 November
Overcast. High 49°, low 44°.
Pressure29.97 inHg
Wind6.4 mph N
Humidity61%
Visibility—
Dew point35°
Wed, 1848° / 42°0
48 °
Deer Isle, Wednesday, 18 November
Overcast. High 48°, low 42°.
Pressure30.00 inHg
Wind13.2 mph N
Humidity79%
Visibility—
Dew point40°
Thu, 1948° / 38°0
48 °
Deer Isle, Thursday, 19 November
Overcast. High 48°, low 38°.
Pressure30.33 inHg
Wind16.9 mph S
Humidity76%
Visibility—
Dew point34°
Fri, 2050° / 47°0.02
50 °
Deer Isle, Friday, 20 November
Light rain. High 50°, low 47°.
Pressure29.91 inHg
Wind18.7 mph NW
Humidity86%
Visibility—
Dew point46°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2144° / 35°0.19
44 °
Deer Isle, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high44°
Average low35°
Average precipitation0.19 in
Chance of precipitation37%
Record high56° (1991)
Record low23° (1987)
Sun, 2243° / 35°0.22
43 °
Deer Isle, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high43°
Average low35°
Average precipitation0.22 in
Chance of precipitation47%
Record high54° (1975)
Record low15° (2018)
Mon, 2342° / 34°0.13
42 °
Deer Isle, Monday, 23 November
Climate normal for this date — 60-year average.
Average high42°
Average low34°
Average precipitation0.13 in
Chance of precipitation30%
Record high58° (1999)
Record low17° (1972)
Tue, 2442° / 33°0.1
42 °
Deer Isle, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high42°
Average low33°
Average precipitation0.1 in
Chance of precipitation35%
Record high55° (2014)
Record low17° (1989)
Wed, 2543° / 33°0.16
43 °
Deer Isle, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high43°
Average low33°
Average precipitation0.16 in
Chance of precipitation38%
Record high55° (2014)
Record low16° (1993)
Thu, 2643° / 35°0.22
43 °
Deer Isle, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high43°
Average low35°
Average precipitation0.22 in
Chance of precipitation50%
Record high54° (1979)
Record low15° (1978)
Fri, 2743° / 34°0.21
43 °
Deer Isle, Friday, 27 November
Climate normal for this date — 60-year average.
Average high43°
Average low34°
Average precipitation0.21 in
Chance of precipitation50%
Record high55° (1999)
Record low11° (1978)
Sat, 2843° / 34°0.22
43 °
Deer Isle, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high43°
Average low34°
Average precipitation0.22 in
Chance of precipitation45%
Record high55° (2011)
Record low19° (1982)
Sun, 2942° / 33°0.17
42 °
Deer Isle, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high42°
Average low33°
Average precipitation0.17 in
Chance of precipitation43%
Record high55° (2003)
Record low15° (1989)
Mon, 3041° / 32°0.13
41 °
Deer Isle, Monday, 30 November
Climate normal for this date — 60-year average.
Average high41°
Average low32°
Average precipitation0.13 in
Chance of precipitation27%
Record high56° (2011)
Record low13° (1989)
Tue, 0142° / 32°0.19
42 °
Deer Isle, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high42°
Average low32°
Average precipitation0.19 in
Chance of precipitation37%
Record high56° (2020)
Record low14° (1989)
Wed, 0242° / 31°0.17
42 °
Deer Isle, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high42°
Average low31°
Average precipitation0.17 in
Chance of precipitation33%
Record high56° (2006)
Record low11° (1989)
Thu, 0341° / 31°0.21
41 °
Deer Isle, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high41°
Average low31°
Average precipitation0.21 in
Chance of precipitation50%
Record high57° (2009)
Record low3° (1976)
Fri, 0440° / 30°0.16
40 °
Deer Isle, Friday, 4 December
Climate normal for this date — 60-year average.
Average high40°
Average low30°
Average precipitation0.16 in
Chance of precipitation28%
Record high58° (1982)
Record low13° (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 Deer 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 Deer 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.