Monthly outlook for Prospect Harbor, ME: average high 52°, average low 41.8°. That is 1.6° above the climate normal for October. Precipitation is expected on 3 days (about 0.5 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 30 October (63.9°), the coolest 1 November (32.8°).
52°/41.8°
Average high / low
+1.6°
Above normal
3 / 5
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
29 October – 7 November
53.9°
50.3°
+2°
8 November – 17 November
48.7°
46°
+1.5°
18 November – 27 November
at normal
42.5°
—
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, 3064° / 47°0.06
64 °
Prospect Harbor, Friday, 30 October
Light rain. High 64°, low 47°.
Pressure29.83 inHg
Wind9.4 mph W
Humidity58%
Visibility6.2 mi
Dew point47°
Sat, 3147° / 36°0
47 °
Prospect Harbor, Saturday, 31 October
Clear. High 47°, low 36°.
Pressure30.27 inHg
Wind12.4 mph NW
Humidity55%
Visibility6.2 mi
Dew point23°
Sun, 0151° / 33°0
51 °
Prospect Harbor, Sunday, 1 November
Clear. High 51°, low 33°.
Pressure30.39 inHg
Wind9 mph W
Humidity51%
Visibility6.2 mi
Dew point29°
Mon, 0256° / 39°0
56 °
Prospect Harbor, Monday, 2 November
Clear. High 56°, low 39°.
Pressure30.18 inHg
Wind8.7 mph SW
Humidity53%
Visibility6.2 mi
Dew point39°
Tue, 0351° / 46°0.08
51 °
Prospect Harbor, Tuesday, 3 November
Light rain. High 51°, low 46°.
Pressure30.33 inHg
Wind5.5 mph N
Humidity80%
Visibility—
Dew point43°
Wed, 0448° / 45°0
48 °
Prospect Harbor, Wednesday, 4 November
Overcast. High 48°, low 45°.
Pressure30.42 inHg
Wind10.4 mph SW
Humidity76%
Visibility—
Dew point39°
Thu, 0554° / 49°0
54 °
Prospect Harbor, Thursday, 5 November
Overcast. High 54°, low 49°.
Pressure30.12 inHg
Wind13.2 mph SW
Humidity80%
Visibility—
Dew point47°
Fri, 0659° / 48°0.32
59 °
Prospect Harbor, Friday, 6 November
Rain. High 59°, low 48°.
Pressure29.65 inHg
Wind27.6 mph S
Humidity87%
Visibility—
Dew point54°
Sat, 0746° / 37°0
46 °
Prospect Harbor, Saturday, 7 November
Clear. High 46°, low 37°.
Pressure30.06 inHg
Wind20.4 mph NW
Humidity52%
Visibility—
Dew point25°
Sun, 0850° / 36°0
50 °
Prospect Harbor, Sunday, 8 November
Clear. High 50°, low 36°.
Pressure30.27 inHg
Wind8.1 mph W
Humidity56%
Visibility—
Dew point29°
Mon, 0949° / 41°0
49 °
Prospect Harbor, Monday, 9 November
Overcast. High 49°, low 41°.
Pressure30.27 inHg
Wind5.5 mph S
Humidity65%
Visibility—
Dew point37°
Tue, 1050° / 47°0
50 °
Prospect Harbor, Tuesday, 10 November
Overcast. High 50°, low 47°.
Pressure30.24 inHg
Wind9.1 mph SE
Humidity73%
Visibility—
Dew point42°
Wed, 1149° / 44°0
49 °
Prospect Harbor, Wednesday, 11 November
Overcast. High 49°, low 44°.
Pressure30.18 inHg
Wind14.5 mph E
Humidity67%
Visibility—
Dew point38°
Thu, 1248° / 42°0
48 °
Prospect Harbor, Thursday, 12 November
Overcast. High 48°, low 42°.
Pressure30.18 inHg
Wind13 mph NE
Humidity74%
Visibility—
Dew point37°
Fri, 1346° / 41°0
46 °
Prospect Harbor, Friday, 13 November
Overcast. High 46°, low 41°.
Pressure30.15 inHg
Wind10.2 mph NE
Humidity77%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 1445° / 35°0.13
45 °
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°0.17
45 °
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°0.17
44 °
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°0.13
44 °
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°0.1
44 °
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°0.08
43 °
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)
Fri, 2043° / 34°0.14
43 °
Prospect 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 °
Prospect 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 °
Prospect 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 °
Prospect 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)
Tue, 2442° / 32°0.08
42 °
Prospect Harbor, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high42°
Average low32°
Average precipitation0.08 in
Chance of precipitation35%
Record high56° (2014)
Record low15° (1989)
Wed, 2542° / 32°0.11
42 °
Prospect Harbor, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high42°
Average low32°
Average precipitation0.11 in
Chance of precipitation33%
Record high56° (2014)
Record low15° (1993)
Thu, 2643° / 33°0.19
43 °
Prospect Harbor, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high43°
Average low33°
Average precipitation0.19 in
Chance of precipitation52%
Record high55° (2025)
Record low14° (1978)
Fri, 2742° / 32°0.19
42 °
Prospect Harbor, Friday, 27 November
Climate normal for this date — 60-year average.
Average high42°
Average low32°
Average precipitation0.19 in
Chance of precipitation47%
Record high57° (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 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.