As of 17:45 EDT

Weather in Prospect Harbor, ME

51°Current weather

Prospect Harbor, Wednesday, 21 October, 17:45

Overcast. Feels like 50°. High 57°, low 37°.

Pressure30.21 inHg
Wind5 mph NE
Humidity73%
Visibility6.2 mi
Dew point43°

Monthly outlook for Prospect Harbor, ME: average high 52°, average low 39.1°. That is 0.1° above the climate normal for October. Precipitation is expected on 2 days (about 1.1 inches), against a normal of 5 days and 2.3 inches. The warmest day looks like 26 October (61.9°), the coolest 5 November (30.5°).

52°/39.1°
Average high / low
+0.1°
Above normal
2 / 5
Wet days / normal
1.1 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
21 October – 30 October53.9°52.5°+0.8°
31 October – 9 November48.8°49.7°-0.5°
10 November – 19 Novemberat normal45.2°—

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).

Thu, 2258° / 41°0Overcast
58 °Overcast

Prospect Harbor, Thursday, 22 October

Overcast. High 58°, low 41°.

Pressure29.94 inHg
Wind9.6 mph N
Humidity53%
Visibility6.2 mi
Dew point37°
Fri, 2350° / 36°0Clear
50 °Clear

Prospect Harbor, Friday, 23 October

Clear. High 50°, low 36°.

Pressure30.30 inHg
Wind12.3 mph N
Humidity54%
Visibility6.2 mi
Dew point29°
Sat, 2454° / 33°0Clear
54 °Clear

Prospect Harbor, Saturday, 24 October

Clear. High 54°, low 33°.

Pressure30.47 inHg
Wind6.2 mph NW
Humidity49%
Visibility6.2 mi
Dew point31°
Sun, 2559° / 38°0Clear
59 °Clear

Prospect Harbor, Sunday, 25 October

Clear. High 59°, low 38°.

Pressure30.47 inHg
Wind5 mph SW
Humidity43%
Visibility6.2 mi
Dew point34°
Mon, 2662° / 40°0Partly cloudy
62 °Partly cloudy

Prospect Harbor, Monday, 26 October

Partly cloudy. High 62°, low 40°.

Pressure30.30 inHg
Wind7.4 mph NW
Humidity46%
Visibility—
Dew point35°
Tue, 2748° / 38°0Clear
48 °Clear

Prospect Harbor, Tuesday, 27 October

Clear. High 48°, low 38°.

Pressure30.36 inHg
Wind9.8 mph NW
Humidity47%
Visibility—
Dew point26°
Wed, 2849° / 35°0Overcast
49 °Overcast

Prospect Harbor, Wednesday, 28 October

Overcast. High 49°, low 35°.

Pressure30.45 inHg
Wind17 mph SW
Humidity53%
Visibility—
Dew point27°
Thu, 2955° / 50°0.26Rain
55 °Rain

Prospect Harbor, Thursday, 29 October

Rain. High 55°, low 50°.

Pressure29.91 inHg
Wind23.5 mph S
Humidity88%
Visibility—
Dew point50°
Fri, 3047° / 38°0Partly cloudy
47 °Partly cloudy

Prospect Harbor, Friday, 30 October

Partly cloudy. High 47°, low 38°.

Pressure29.53 inHg
Wind28.6 mph W
Humidity56%
Visibility—
Dew point26°
Sat, 3146° / 37°0Clear
46 °Clear

Prospect Harbor, Saturday, 31 October

Clear. High 46°, low 37°.

Pressure30.15 inHg
Wind23 mph W
Humidity52%
Visibility—
Dew point25°
Sun, 0153° / 44°0Overcast
53 °Overcast

Prospect Harbor, Sunday, 1 November

Overcast. High 53°, low 44°.

Pressure30.30 inHg
Wind19.8 mph SW
Humidity77%
Visibility—
Dew point45°
Mon, 0255° / 47°0Overcast
55 °Overcast

Prospect Harbor, Monday, 2 November

Overcast. High 55°, low 47°.

Pressure30.36 inHg
Wind9.3 mph NW
Humidity54%
Visibility—
Dew point35°
Tue, 0354° / 48°0.81Rain
54 °Rain

Prospect Harbor, Tuesday, 3 November

Rain. High 54°, low 48°.

Pressure30.00 inHg
Wind17.9 mph N
Humidity98%
Visibility—
Dew point51°
Wed, 0442° / 33°0Overcast
42 °Overcast

Prospect Harbor, Wednesday, 4 November

Overcast. High 42°, low 33°.

Pressure30.24 inHg
Wind21.9 mph N
Humidity59%
Visibility—
Dew point27°
Thu, 0544° / 31°0Overcast
44 °Overcast

Prospect Harbor, Thursday, 5 November

Overcast. High 44°, low 31°.

Pressure30.45 inHg
Wind14 mph SW
Humidity46%
Visibility—
Dew point19°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 0649° / 41°0.18Climate normal
49 °Climate normal

Prospect Harbor, Friday, 6 November

Climate normal for this date — 60-year average.

Average high49°
Average low41°
Average precipitation0.18 in
Chance of precipitation45%
Record high68° (2024)
Record low30° (1987)
Sat, 0749° / 40°0.08Climate normal
49 °Climate normal

Prospect 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

Prospect 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

Prospect 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

Prospect 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

Prospect 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

Prospect 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

Prospect 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

Prospect 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

Prospect 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

Prospect 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

Prospect 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

Prospect 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

Prospect 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)

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 Prospect 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 Prospect 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.