Monthly outlook for Castle Harmony, ME: average high 54.2°, average low 35.7°. That is 1.1° above the climate normal for October. Precipitation is expected on 4 days (about 0.6 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 2 November (65.7°), the coolest 18 October (27.9°).
54.2°/35.7°
Average high / low
+1.1°
Above normal
4 / 5
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
18 October – 27 October
52.9°
53.4°
-0.3°
28 October – 6 November
56.2°
49.6°
+3.7°
7 November – 16 November
at normal
44.6°
—
October records over 66 years
83.3°6 October 2025All-time high
21.9°30 October 1962All-time low
Climate normals and records are computed from the nearest reference point — Canaan (11 mi).
Mon, 1960° / 37°0
60 °
Castle Harmony, Monday, 19 October
Clear. High 60°, low 37°.
Pressure30.42 inHg
Wind7.9 mph S
Humidity50%
Visibility6.2 mi
Dew point36°
Tue, 2057° / 40°0
57 °
Castle Harmony, Tuesday, 20 October
Clear. High 57°, low 40°.
Pressure30.30 inHg
Wind9.6 mph N
Humidity44%
Visibility6.2 mi
Dew point33°
Wed, 2154° / 36°0
54 °
Castle Harmony, Wednesday, 21 October
Clear. High 54°, low 36°.
Pressure30.36 inHg
Wind6.3 mph NE
Humidity49%
Visibility6.2 mi
Dew point33°
Thu, 2259° / 34°0
59 °
Castle Harmony, Thursday, 22 October
Clear. High 59°, low 34°.
Pressure29.94 inHg
Wind12 mph NW
Humidity46%
Visibility—
Dew point30°
Fri, 2342° / 32°0.08
42 °
Castle Harmony, Friday, 23 October
Light rain. High 42°, low 32°.
Pressure30.06 inHg
Wind16.2 mph N
Humidity77%
Visibility—
Dew point35°
Sat, 2452° / 29°0
52 °
Castle Harmony, Saturday, 24 October
Overcast. High 52°, low 29°.
Pressure30.62 inHg
Wind6.1 mph SW
Humidity38%
Visibility—
Dew point19°
Sun, 2559° / 31°0.03
59 °
Castle Harmony, Sunday, 25 October
Light rain. High 59°, low 31°.
Pressure30.30 inHg
Wind11.5 mph SW
Humidity47%
Visibility—
Dew point27°
Mon, 2648° / 32°0.05
48 °
Castle Harmony, Monday, 26 October
Light rain. High 48°, low 32°.
Pressure30.09 inHg
Wind12.8 mph NW
Humidity51%
Visibility—
Dew point29°
Tue, 2748° / 31°0
48 °
Castle Harmony, Tuesday, 27 October
Overcast. High 48°, low 31°.
Pressure30.00 inHg
Wind12.4 mph W
Humidity53%
Visibility—
Dew point28°
Wed, 2845° / 29°0
45 °
Castle Harmony, Wednesday, 28 October
Clear. High 45°, low 29°.
Pressure30.30 inHg
Wind6.5 mph NW
Humidity38%
Visibility—
Dew point15°
Thu, 2950° / 30°0
50 °
Castle Harmony, Thursday, 29 October
Overcast. High 50°, low 30°.
Pressure30.06 inHg
Wind10.7 mph SW
Humidity67%
Visibility—
Dew point36°
Fri, 3055° / 45°0.34
55 °
Castle Harmony, Friday, 30 October
Rain. High 55°, low 45°.
Pressure29.68 inHg
Wind5.7 mph W
Humidity98%
Visibility—
Dew point51°
Sat, 3163° / 42°0
63 °
Castle Harmony, Saturday, 31 October
Partly cloudy. High 63°, low 42°.
Pressure29.94 inHg
Wind9.8 mph SW
Humidity72%
Visibility—
Dew point45°
Sun, 0158° / 49°0.04
58 °
Castle Harmony, Sunday, 1 November
Light rain. High 58°, low 49°.
Pressure29.83 inHg
Wind7 mph SW
Humidity89%
Visibility—
Dew point51°
Mon, 0266° / 46°0.02
66 °
Castle Harmony, Monday, 2 November
Light rain. High 66°, low 46°.
Pressure29.71 inHg
Wind14 mph NW
Humidity64%
Visibility—
Dew point47°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0349° / 37°0.21
49 °
Castle Harmony, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.21 in
Chance of precipitation43%
Record high64° (1975)
Record low20° (2002)
Wed, 0449° / 36°0.07
49 °
Castle Harmony, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.07 in
Chance of precipitation28%
Record high67° (1990)
Record low22° (2020)
Thu, 0548° / 35°0.13
48 °
Castle Harmony, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.13 in
Chance of precipitation32%
Record high70° (2022)
Record low23° (1986)
Fri, 0648° / 36°0.13
48 °
Castle Harmony, Friday, 6 November
Climate normal for this date — 60-year average.
Average high48°
Average low36°
Average precipitation0.13 in
Chance of precipitation40%
Record high71° (2022)
Record low27° (1986)
Sat, 0748° / 35°0.05
48 °
Castle Harmony, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.05 in
Chance of precipitation30%
Record high68° (2022)
Record low15° (2002)
Sun, 0846° / 34°0.09
46 °
Castle Harmony, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.09 in
Chance of precipitation18%
Record high61° (2020)
Record low15° (2002)
Mon, 0946° / 33°0.12
46 °
Castle Harmony, Monday, 9 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.12 in
Chance of precipitation30%
Record high66° (2020)
Record low21° (2019)
Tue, 1046° / 33°0.11
46 °
Castle Harmony, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.11 in
Chance of precipitation42%
Record high67° (2020)
Record low21° (1992)
Wed, 1145° / 33°0.11
45 °
Castle Harmony, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.11 in
Chance of precipitation40%
Record high67° (2020)
Record low21° (2017)
Thu, 1244° / 32°0.12
44 °
Castle Harmony, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high44°
Average low32°
Average precipitation0.12 in
Chance of precipitation30%
Record high65° (2022)
Record low21° (2019)
Fri, 1343° / 31°0.16
43 °
Castle Harmony, Friday, 13 November
Climate normal for this date — 60-year average.
Average high43°
Average low31°
Average precipitation0.16 in
Chance of precipitation35%
Record high58° (1982)
Record low12° (2019)
Sat, 1443° / 30°0.08
43 °
Castle Harmony, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high43°
Average low30°
Average precipitation0.08 in
Chance of precipitation35%
Record high60° (2011)
Record low4° (2019)
Sun, 1543° / 31°0.14
43 °
Castle Harmony, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high43°
Average low31°
Average precipitation0.14 in
Chance of precipitation38%
Record high60° (2008)
Record low3° (2018)
Mon, 1642° / 30°0.16
42 °
Castle Harmony, Monday, 16 November
Climate normal for this date — 60-year average.
Average high42°
Average low30°
Average precipitation0.16 in
Chance of precipitation37%
Record high61° (2008)
Record low12° (2019)
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 Castle Harmony, 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 Castle Harmony, 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.