Monthly outlook for Summer Harbor, ME: average high 52.8°, average low 41.6°. That is 1.3° above the climate normal for October. Precipitation is expected on 4 days (about 2.0 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 25 October (63.3°), the coolest 28 October (32.7°).
52.8°/41.6°
Average high / low
+1.3°
Above normal
4 / 5
Wet days / normal
2.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
25 October – 3 November
54.6°
51.4°
+1.8°
4 November – 13 November
49.8°
48.1°
+1°
14 November – 23 November
at normal
43.6°
—
October records over 66 years
81°3 October 2023All-time high
29.7°24 October 1969All-time low
Climate normals and records are computed from the nearest reference point — Winter Harbor (3 mi).
Mon, 2663° / 41°0
63 °
Summer Harbor, Monday, 26 October
Partly cloudy. High 63°, low 41°.
Pressure30.06 inHg
Wind3.5 mph W
Humidity48%
Visibility6.2 mi
Dew point39°
Tue, 2747° / 36°0
47 °
Summer Harbor, Tuesday, 27 October
Clear. High 47°, low 36°.
Pressure30.30 inHg
Wind8.5 mph NW
Humidity54%
Visibility6.2 mi
Dew point22°
Wed, 2846° / 33°0
46 °
Summer Harbor, Wednesday, 28 October
Clear. High 46°, low 33°.
Pressure30.50 inHg
Wind2.8 mph NW
Humidity58%
Visibility6.2 mi
Dew point24°
Thu, 2953° / 39°0.03
53 °
Summer Harbor, Thursday, 29 October
Light rain. High 53°, low 39°.
Pressure30.21 inHg
Wind13.3 mph SW
Humidity78%
Visibility—
Dew point44°
Fri, 3058° / 46°0
58 °
Summer Harbor, Friday, 30 October
Clear. High 58°, low 46°.
Pressure30.06 inHg
Wind14 mph N
Humidity68%
Visibility—
Dew point45°
Sat, 3151° / 41°0
51 °
Summer Harbor, Saturday, 31 October
Partly cloudy. High 51°, low 41°.
Pressure30.45 inHg
Wind10.2 mph N
Humidity52%
Visibility—
Dew point30°
Sun, 0153° / 48°0
53 °
Summer Harbor, Sunday, 1 November
Overcast. High 53°, low 48°.
Pressure30.39 inHg
Wind15.6 mph SW
Humidity78%
Visibility—
Dew point45°
Mon, 0255° / 53°0.97
55 °
Summer Harbor, Monday, 2 November
Rain. High 55°, low 53°.
Pressure29.91 inHg
Wind27.1 mph S
Humidity96%
Visibility—
Dew point53°
Tue, 0355° / 43°0.25
55 °
Summer Harbor, Tuesday, 3 November
Rain. High 55°, low 43°.
Pressure29.65 inHg
Wind24.6 mph NW
Humidity70%
Visibility—
Dew point44°
Wed, 0449° / 39°0
49 °
Summer Harbor, Wednesday, 4 November
Clear. High 49°, low 39°.
Pressure30.21 inHg
Wind16.8 mph NW
Humidity52%
Visibility—
Dew point27°
Thu, 0555° / 47°0.57
55 °
Summer Harbor, Thursday, 5 November
Rain. High 55°, low 47°.
Pressure29.71 inHg
Wind27.4 mph S
Humidity94%
Visibility—
Dew point48°
Fri, 0648° / 40°0
48 °
Summer Harbor, Friday, 6 November
Overcast. High 48°, low 40°.
Pressure29.50 inHg
Wind20.6 mph NW
Humidity76%
Visibility—
Dew point40°
Sat, 0746° / 37°0.02
46 °
Summer Harbor, Saturday, 7 November
Light rain. High 46°, low 37°.
Pressure29.68 inHg
Wind17.2 mph NW
Humidity60%
Visibility—
Dew point28°
Sun, 0855° / 47°0.17
55 °
Summer Harbor, Sunday, 8 November
Rain. High 55°, low 47°.
Pressure29.09 inHg
Wind25.9 mph SW
Humidity91%
Visibility—
Dew point52°
Mon, 0945° / 40°0
45 °
Summer Harbor, Monday, 9 November
Mostly clear. High 45°, low 40°.
Pressure29.47 inHg
Wind20.6 mph W
Humidity60%
Visibility—
Dew point31°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 1048° / 38°0.15
48 °
Summer Harbor, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high48°
Average low38°
Average precipitation0.15 in
Chance of precipitation42%
Record high59° (2020)
Record low25° (1965)
Wed, 1147° / 38°0.14
47 °
Summer Harbor, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high47°
Average low38°
Average precipitation0.14 in
Chance of precipitation43%
Record high60° (2022)
Record low25° (2017)
Thu, 1246° / 37°0.12
46 °
Summer Harbor, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high46°
Average low37°
Average precipitation0.12 in
Chance of precipitation35%
Record high63° (2022)
Record low26° (1976)
Fri, 1345° / 36°0.18
45 °
Summer Harbor, Friday, 13 November
Climate normal for this date — 60-year average.
Average high45°
Average low36°
Average precipitation0.18 in
Chance of precipitation37%
Record high58° (1982)
Record low19° (2019)
Sat, 1445° / 35°0.13
45 °
Summer Harbor, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high45°
Average low35°
Average precipitation0.13 in
Chance of precipitation40%
Record high57° (2005)
Record low15° (1986)
Sun, 1545° / 36°0.17
45 °
Summer Harbor, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high45°
Average low36°
Average precipitation0.17 in
Chance of precipitation43%
Record high60° (1994)
Record low19° (2018)
Mon, 1644° / 35°0.17
44 °
Summer Harbor, Monday, 16 November
Climate normal for this date — 60-year average.
Average high44°
Average low35°
Average precipitation0.17 in
Chance of precipitation38%
Record high59° (1989)
Record low19° (2019)
Tue, 1744° / 34°0.13
44 °
Summer Harbor, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high44°
Average low34°
Average precipitation0.13 in
Chance of precipitation28%
Record high60° (2006)
Record low22° (2019)
Wed, 1844° / 34°0.1
44 °
Summer Harbor, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high44°
Average low34°
Average precipitation0.1 in
Chance of precipitation35%
Record high57° (2021)
Record low26° (1997)
Thu, 1943° / 33°0.08
43 °
Summer Harbor, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high43°
Average low33°
Average precipitation0.08 in
Chance of precipitation22%
Record high56° (2021)
Record low21° (1986)
Fri, 2043° / 34°0.14
43 °
Summer Harbor, Friday, 20 November
Climate normal for this date — 60-year average.
Average high43°
Average low34°
Average precipitation0.14 in
Chance of precipitation35%
Record high58° (1991)
Record low17° (1986)
Sat, 2143° / 33°0.17
43 °
Summer Harbor, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high43°
Average low33°
Average precipitation0.17 in
Chance of precipitation32%
Record high57° (1991)
Record low20° (2022)
Sun, 2242° / 33°0.19
42 °
Summer Harbor, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high42°
Average low33°
Average precipitation0.19 in
Chance of precipitation48%
Record high55° (1992)
Record low9° (2018)
Mon, 2341° / 32°0.13
41 °
Summer Harbor, Monday, 23 November
Climate normal for this date — 60-year average.
Average high41°
Average low32°
Average precipitation0.13 in
Chance of precipitation30%
Record high60° (1999)
Record low13° (2018)
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 Summer Harbor, 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 Summer Harbor, 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.