As of 04:22 EDT

Weather in Summer Harbor, ME

45°Current weather

Summer Harbor, Thursday, 22 October, 04:22

Overcast. Feels like 40°. High 57°, low 42°.

Pressure30.03 inHg
Wind11 mph N
Humidity86%
Visibility6.2 mi
Dew point40°

Monthly outlook for Summer Harbor, ME: average high 52.5°, average low 39°. That is 0.6° above the climate normal for October. Precipitation is expected on 6 days (about 1.4 inches), against a normal of 5 days and 2.3 inches. The warmest day looks like 26 October (61.5°), the coolest 4 November (30.6°).

52.5°/39°
Average high / low
+0.6°
Above normal
6 / 5
Wet days / normal
1.4 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
22 October – 31 October53.1°52.1°+0.6°
1 November – 10 November51.5°49.4°+1.1°
11 November – 20 Novemberat normal44.8°—

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).

Fri, 2352° / 36°0Clear
52 °Clear

Summer Harbor, Friday, 23 October

Clear. High 52°, low 36°.

Pressure30.27 inHg
Wind12.1 mph N
Humidity55%
Visibility6.2 mi
Dew point30°
Sat, 2453° / 34°0Clear
53 °Clear

Summer Harbor, Saturday, 24 October

Clear. High 53°, low 34°.

Pressure30.45 inHg
Wind7 mph NW
Humidity51%
Visibility6.2 mi
Dew point31°
Sun, 2557° / 38°0Clear
57 °Clear

Summer Harbor, Sunday, 25 October

Clear. High 57°, low 38°.

Pressure30.50 inHg
Wind4.7 mph SW
Humidity50%
Visibility6.2 mi
Dew point37°
Mon, 2661° / 42°0Clear
61 °Clear

Summer Harbor, Monday, 26 October

Clear. High 61°, low 42°.

Pressure30.27 inHg
Wind6.8 mph NW
Humidity54%
Visibility—
Dew point38°
Tue, 2747° / 37°0Overcast
47 °Overcast

Summer Harbor, Tuesday, 27 October

Overcast. High 47°, low 37°.

Pressure30.42 inHg
Wind7.8 mph N
Humidity55%
Visibility—
Dew point30°
Wed, 2853° / 36°0.13Light rain
53 °Light rain

Summer Harbor, Wednesday, 28 October

Light rain. High 53°, low 36°.

Pressure30.21 inHg
Wind20.2 mph SW
Humidity65%
Visibility—
Dew point37°
Thu, 2948° / 38°0.27Rain
48 °Rain

Summer Harbor, Thursday, 29 October

Rain. High 48°, low 38°.

Pressure30.06 inHg
Wind14.6 mph NW
Humidity68%
Visibility—
Dew point33°
Fri, 3052° / 37°0Clear
52 °Clear

Summer Harbor, Friday, 30 October

Clear. High 52°, low 37°.

Pressure30.30 inHg
Wind14 mph SW
Humidity61%
Visibility—
Dew point33°
Sat, 3151° / 40°0Clear
51 °Clear

Summer Harbor, Saturday, 31 October

Clear. High 51°, low 40°.

Pressure30.50 inHg
Wind6.9 mph NE
Humidity63%
Visibility—
Dew point36°
Sun, 0153° / 47°0Overcast
53 °Overcast

Summer Harbor, Sunday, 1 November

Overcast. High 53°, low 47°.

Pressure30.50 inHg
Wind9.2 mph S
Humidity73%
Visibility—
Dew point43°
Mon, 0254° / 48°0Overcast
54 °Overcast

Summer Harbor, Monday, 2 November

Overcast. High 54°, low 48°.

Pressure30.15 inHg
Wind6.6 mph SE
Humidity86%
Visibility—
Dew point48°
Tue, 0352° / 37°0.38Rain
52 °Rain

Summer Harbor, Tuesday, 3 November

Rain. High 52°, low 37°.

Pressure29.41 inHg
Wind26 mph W
Humidity88%
Visibility—
Dew point49°
Wed, 0441° / 31°0.05Snow
41 °Snow

Summer Harbor, Wednesday, 4 November

Snow. High 41°, low 31°.

Pressure29.71 inHg
Wind26.7 mph W
Humidity66%
Visibility—
Dew point30°
Thu, 0554° / 31°0.04Light rain
54 °Light rain

Summer Harbor, Thursday, 5 November

Light rain. High 54°, low 31°.

Pressure30.09 inHg
Wind29.5 mph S
Humidity68%
Visibility—
Dew point38°
Fri, 0655° / 50°0.5Rain
55 °Rain

Summer Harbor, Friday, 6 November

Rain. High 55°, low 50°.

Pressure29.80 inHg
Wind31.2 mph SW
Humidity74%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 0749° / 40°0.08Climate normal
49 °Climate normal

Summer Harbor, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high49°
Average low40°
Average precipitation0.08 in
Chance of precipitation30%
Record high65° (2022)
Record low20° (2002)
Sun, 0848° / 38°0.12Climate normal
48 °Climate normal

Summer Harbor, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high48°
Average low38°
Average precipitation0.12 in
Chance of precipitation22%
Record high60° (2025)
Record low19° (2002)
Mon, 0947° / 38°0.11Climate normal
47 °Climate normal

Summer Harbor, Monday, 9 November

Climate normal for this date — 60-year average.

Average high47°
Average low38°
Average precipitation0.11 in
Chance of precipitation23%
Record high61° (1975)
Record low25° (1971)
Tue, 1048° / 38°0.15Climate normal
48 °Climate normal

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°0.14Climate normal
47 °Climate normal

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°0.12Climate normal
46 °Climate normal

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°0.18Climate normal
45 °Climate normal

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°0.13Climate normal
45 °Climate normal

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°0.17Climate normal
45 °Climate normal

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°0.17Climate normal
44 °Climate normal

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°0.13Climate normal
44 °Climate normal

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°0.1Climate normal
44 °Climate normal

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°0.08Climate normal
43 °Climate normal

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°0.14Climate normal
43 °Climate normal

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)

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.