Monthly outlook for Harmon Beach, ME: average high 55.2°, average low 39°. That is 0° above the climate normal for October. Precipitation is expected on 7 days (about 2.9 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 12 October (70.2°), the coolest 18 October (28.7°).
55.2°/39°
Average high / low
+0°
Above normal
7 / 5
Wet days / normal
2.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
56.5°
56.3°
+0.1°
22 October – 31 October
53.2°
52.6°
+0.4°
1 November – 10 November
at normal
49.1°
—
October records over 66 years
83.3°6 October 2025All-time high
25.3°24 October 1969All-time low
Climate normals and records are computed from the nearest reference point — Baldwin (9 mi).
Tue, 1353° / 42°1.33
53 °
Harmon Beach, Tuesday, 13 October
Heavy rain. High 53°, low 42°.
Pressure30.09 inHg
Wind6.7 mph E
Humidity92%
Visibility5.1 mi
Dew point43°
Wed, 1463° / 50°0.17
63 °
Harmon Beach, Wednesday, 14 October
Rain. High 63°, low 50°.
Pressure29.77 inHg
Wind4.3 mph NW
Humidity85%
Visibility6.2 mi
Dew point50°
Thu, 1556° / 46°0
56 °
Harmon Beach, Thursday, 15 October
Clear. High 56°, low 46°.
Pressure30.12 inHg
Wind10.2 mph NW
Humidity44%
Visibility6.2 mi
Dew point32°
Fri, 1649° / 45°0.89
49 °
Harmon Beach, Friday, 16 October
Rain. High 49°, low 45°.
Pressure29.85 inHg
Wind11.1 mph SE
Humidity95%
Visibility—
Dew point46°
Sat, 1745° / 36°0.04
45 °
Harmon Beach, Saturday, 17 October
Light rain. High 45°, low 36°.
Pressure29.83 inHg
Wind20.1 mph NW
Humidity63%
Visibility—
Dew point30°
Sun, 1847° / 29°0
47 °
Harmon Beach, Sunday, 18 October
Mostly clear. High 47°, low 29°.
Pressure30.42 inHg
Wind11 mph W
Humidity33%
Visibility—
Dew point12°
Mon, 1962° / 36°0
62 °
Harmon Beach, Monday, 19 October
Clear. High 62°, low 36°.
Pressure30.36 inHg
Wind10.3 mph SW
Humidity41%
Visibility—
Dew point29°
Tue, 2066° / 42°0
66 °
Harmon Beach, Tuesday, 20 October
Overcast. High 66°, low 42°.
Pressure30.15 inHg
Wind10.2 mph N
Humidity55%
Visibility—
Dew point41°
Wed, 2154° / 37°0
54 °
Harmon Beach, Wednesday, 21 October
Mostly clear. High 54°, low 37°.
Pressure30.47 inHg
Wind7.9 mph N
Humidity43%
Visibility—
Dew point26°
Thu, 2256° / 34°0
56 °
Harmon Beach, Thursday, 22 October
Partly cloudy. High 56°, low 34°.
Pressure30.59 inHg
Wind7.2 mph SW
Humidity50%
Visibility—
Dew point29°
Fri, 2363° / 41°0.09
63 °
Harmon Beach, Friday, 23 October
Light rain. High 63°, low 41°.
Pressure30.15 inHg
Wind13.4 mph SW
Humidity54%
Visibility—
Dew point39°
Sat, 2453° / 37°0.04
53 °
Harmon Beach, Saturday, 24 October
Light rain. High 53°, low 37°.
Pressure30.00 inHg
Wind16.3 mph NW
Humidity51%
Visibility—
Dew point33°
Sun, 2552° / 31°0
52 °
Harmon Beach, Sunday, 25 October
Mostly clear. High 52°, low 31°.
Pressure30.18 inHg
Wind9 mph NW
Humidity37%
Visibility—
Dew point19°
Mon, 2643° / 36°0.13
43 °
Harmon Beach, Monday, 26 October
Light rain. High 43°, low 36°.
Pressure29.85 inHg
Wind6 mph NW
Humidity54%
Visibility—
Dew point26°
Tue, 2752° / 35°0
52 °
Harmon Beach, Tuesday, 27 October
Mostly clear. High 52°, low 35°.
Pressure29.91 inHg
Wind5.8 mph NW
Humidity70%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2852° / 38°0.17
52 °
Harmon Beach, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.17 in
Chance of precipitation33%
Record high76° (2023)
Record low26° (1974)
Thu, 2951° / 37°0.1
51 °
Harmon Beach, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.1 in
Chance of precipitation32%
Record high68° (1971)
Record low27° (1965)
Fri, 3050° / 37°0.17
50 °
Harmon Beach, Friday, 30 October
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.17 in
Chance of precipitation23%
Record high67° (1989)
Record low27° (1962)
Sat, 3151° / 37°0.11
51 °
Harmon Beach, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.11 in
Chance of precipitation25%
Record high73° (2024)
Record low26° (2011)
Sun, 0152° / 38°0.11
52 °
Harmon Beach, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.11 in
Chance of precipitation25%
Record high71° (2024)
Record low27° (2011)
Mon, 0251° / 38°0.16
51 °
Harmon Beach, Monday, 2 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.16 in
Chance of precipitation32%
Record high66° (2001)
Record low22° (2002)
Tue, 0350° / 37°0.22
50 °
Harmon Beach, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.22 in
Chance of precipitation38%
Record high66° (1990)
Record low22° (2002)
Wed, 0450° / 37°0.07
50 °
Harmon Beach, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.07 in
Chance of precipitation22%
Record high67° (1987)
Record low26° (2002)
Thu, 0549° / 37°0.17
49 °
Harmon Beach, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.17 in
Chance of precipitation38%
Record high73° (2022)
Record low24° (1965)
Fri, 0649° / 38°0.13
49 °
Harmon Beach, Friday, 6 November
Climate normal for this date — 60-year average.
Average high49°
Average low38°
Average precipitation0.13 in
Chance of precipitation33%
Record high74° (2022)
Record low27° (1987)
Sat, 0749° / 36°0.06
49 °
Harmon Beach, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.06 in
Chance of precipitation25%
Record high69° (2020)
Record low21° (2002)
Sun, 0847° / 35°0.08
47 °
Harmon Beach, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.08 in
Chance of precipitation25%
Record high65° (2020)
Record low22° (2002)
Mon, 0947° / 35°0.1
47 °
Harmon Beach, Monday, 9 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.1 in
Chance of precipitation28%
Record high66° (2020)
Record low20° (1971)
Tue, 1047° / 35°0.15
47 °
Harmon Beach, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.15 in
Chance of precipitation30%
Record high69° (2020)
Record low22° (1995)
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 Harmon Beach, 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 Harmon Beach, 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.