Monthly outlook for Castle Harmony, ME: average high 53.8°, average low 35.6°. That is 0.7° above the climate normal for October. Precipitation is expected on 2 days (about 0.3 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 1 November (59.1°), the coolest 24 October (27.9°).
53.8°/35.6°
Average high / low
+0.7°
Above normal
2 / 5
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
53°
53.8°
-0.4°
27 October – 5 November
55.2°
49.9°
+3°
6 November – 15 November
at normal
45.2°
—
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).
Sun, 1856° / 30°0
56 °
Castle Harmony, Sunday, 18 October
Clear. High 56°, low 30°.
Pressure30.50 inHg
Wind5.4 mph SW
Humidity48%
Visibility6.2 mi
Dew point26°
Mon, 1957° / 36°0
57 °
Castle Harmony, Monday, 19 October
Overcast. High 57°, low 36°.
Pressure30.42 inHg
Wind7.5 mph S
Humidity50%
Visibility6.2 mi
Dew point36°
Tue, 2056° / 38°0
56 °
Castle Harmony, Tuesday, 20 October
Clear. High 56°, low 38°.
Pressure30.27 inHg
Wind10.1 mph N
Humidity49%
Visibility6.2 mi
Dew point35°
Wed, 2154° / 36°0
54 °
Castle Harmony, Wednesday, 21 October
Clear. High 54°, low 36°.
Pressure30.36 inHg
Wind4.6 mph NE
Humidity51%
Visibility6.2 mi
Dew point32°
Thu, 2258° / 35°0
58 °
Castle Harmony, Thursday, 22 October
Mostly clear. High 58°, low 35°.
Pressure30.03 inHg
Wind10.6 mph N
Humidity52%
Visibility—
Dew point34°
Fri, 2347° / 35°0
47 °
Castle Harmony, Friday, 23 October
Partly cloudy. High 47°, low 35°.
Pressure30.33 inHg
Wind15 mph N
Humidity60%
Visibility—
Dew point29°
Sat, 2450° / 28°0
50 °
Castle Harmony, Saturday, 24 October
Clear. High 50°, low 28°.
Pressure30.62 inHg
Wind5.4 mph SW
Humidity37%
Visibility—
Dew point18°
Sun, 2557° / 29°0
57 °
Castle Harmony, Sunday, 25 October
Overcast. High 57°, low 29°.
Pressure30.39 inHg
Wind10 mph SW
Humidity43%
Visibility—
Dew point24°
Mon, 2648° / 42°0.14
48 °
Castle Harmony, Monday, 26 October
Rain. High 48°, low 42°.
Pressure30.03 inHg
Wind9.2 mph NW
Humidity83%
Visibility—
Dew point41°
Tue, 2753° / 33°0
53 °
Castle Harmony, Tuesday, 27 October
Clear. High 53°, low 33°.
Pressure30.15 inHg
Wind11.1 mph NW
Humidity51%
Visibility—
Dew point30°
Wed, 2852° / 35°0
52 °
Castle Harmony, Wednesday, 28 October
Clear. High 52°, low 35°.
Pressure30.30 inHg
Wind6.7 mph N
Humidity52%
Visibility—
Dew point28°
Thu, 2953° / 35°0
53 °
Castle Harmony, Thursday, 29 October
Overcast. High 53°, low 35°.
Pressure30.24 inHg
Wind9.1 mph SW
Humidity78%
Visibility—
Dew point42°
Fri, 3057° / 36°0.01
57 °
Castle Harmony, Friday, 30 October
Light rain. High 57°, low 36°.
Pressure30.21 inHg
Wind5 mph SW
Humidity36%
Visibility—
Dew point25°
Sat, 3159° / 43°0
59 °
Castle Harmony, Saturday, 31 October
Partly cloudy. High 59°, low 43°.
Pressure30.30 inHg
Wind6.3 mph S
Humidity55%
Visibility—
Dew point37°
Sun, 0159° / 51°0.14
59 °
Castle Harmony, Sunday, 1 November
Rain. High 59°, low 51°.
Pressure29.97 inHg
Wind11.2 mph NW
Humidity85%
Visibility—
Dew point52°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0249° / 37°0.17
49 °
Castle Harmony, Monday, 2 November
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.17 in
Chance of precipitation33%
Record high62° (2001)
Record low22° (2002)
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)
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.