Monthly outlook for Castle Hill, ME: average high 51.2°, average low 35.6°. That is 1.8° above the climate normal for October. Precipitation is expected on 1 day (about 0.6 inches), against a normal of 6 days and 2.0 inches. The warmest day looks like 19 October (61.2°), the coolest 18 October (27.5°).
51.2°/35.6°
Average high / low
+1.8°
Above normal
1 / 6
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
52°
49.1°
+1.6°
27 October – 5 November
49.8°
45.2°
+2.6°
6 November – 15 November
at normal
40.3°
—
October records over 66 years
82°6 October 2025All-time high
15.3°30 October 1962All-time low
Climate normals and records are computed from the nearest reference point — Mapleton (6 mi).
Sun, 1850° / 27°0
50 °
Castle Hill, Sunday, 18 October
Mostly clear. High 50°, low 27°.
Pressure30.47 inHg
Wind5.7 mph W
Humidity55%
Visibility6.2 mi
Dew point24°
Mon, 1961° / 35°0
61 °
Castle Hill, Monday, 19 October
Clear. High 61°, low 35°.
Pressure30.36 inHg
Wind9.4 mph SW
Humidity45%
Visibility6.2 mi
Dew point35°
Tue, 2055° / 37°0
55 °
Castle Hill, Tuesday, 20 October
Clear. High 55°, low 37°.
Pressure30.36 inHg
Wind7.4 mph N
Humidity51%
Visibility6.2 mi
Dew point35°
Wed, 2150° / 32°0
50 °
Castle Hill, Wednesday, 21 October
Clear. High 50°, low 32°.
Pressure30.47 inHg
Wind6.8 mph N
Humidity58%
Visibility—
Dew point30°
Thu, 2254° / 30°0
54 °
Castle Hill, Thursday, 22 October
Clear. High 54°, low 30°.
Pressure30.24 inHg
Wind6.1 mph SW
Humidity60%
Visibility—
Dew point32°
Fri, 2349° / 35°0
49 °
Castle Hill, Friday, 23 October
Clear. High 49°, low 35°.
Pressure30.33 inHg
Wind11.4 mph N
Humidity56%
Visibility—
Dew point30°
Sat, 2454° / 33°0
54 °
Castle Hill, Saturday, 24 October
Clear. High 54°, low 33°.
Pressure30.42 inHg
Wind4.8 mph N
Humidity50%
Visibility—
Dew point28°
Sun, 2558° / 35°0
58 °
Castle Hill, Sunday, 25 October
Clear. High 58°, low 35°.
Pressure30.06 inHg
Wind7.7 mph S
Humidity53%
Visibility—
Dew point33°
Mon, 2647° / 37°0.04
47 °
Castle Hill, Monday, 26 October
Light rain. High 47°, low 37°.
Pressure29.77 inHg
Wind19.5 mph NW
Humidity96%
Visibility—
Dew point37°
Tue, 2750° / 31°0
50 °
Castle Hill, Tuesday, 27 October
Overcast. High 50°, low 31°.
Pressure30.12 inHg
Wind10.2 mph NW
Humidity48%
Visibility—
Dew point24°
Wed, 2843° / 33°0
43 °
Castle Hill, Wednesday, 28 October
Overcast. High 43°, low 33°.
Pressure30.00 inHg
Wind4.4 mph SW
Humidity62%
Visibility—
Dew point30°
Thu, 2947° / 39°0
47 °
Castle Hill, Thursday, 29 October
Overcast. High 47°, low 39°.
Pressure30.09 inHg
Wind5.5 mph SW
Humidity74%
Visibility—
Dew point37°
Fri, 3054° / 44°0
54 °
Castle Hill, Friday, 30 October
Overcast. High 54°, low 44°.
Pressure30.15 inHg
Wind4.6 mph E
Humidity67%
Visibility—
Dew point39°
Sat, 3153° / 44°0.57
53 °
Castle Hill, Saturday, 31 October
Rain. High 53°, low 44°.
Pressure29.83 inHg
Wind7.7 mph S
Humidity97%
Visibility—
Dew point44°
Sun, 0152° / 46°0.01
52 °
Castle Hill, Sunday, 1 November
Light rain. High 52°, low 46°.
Pressure29.80 inHg
Wind7.8 mph N
Humidity94%
Visibility—
Dew point46°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0245° / 32°0.14
45 °
Castle Hill, Monday, 2 November
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.14 in
Chance of precipitation42%
Record high59° (2001)
Record low17° (1993)
Tue, 0344° / 32°0.18
44 °
Castle Hill, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high44°
Average low32°
Average precipitation0.18 in
Chance of precipitation45%
Record high60° (1967)
Record low10° (1993)
Wed, 0444° / 31°0.09
44 °
Castle Hill, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.09 in
Chance of precipitation37%
Record high64° (2022)
Record low13° (2002)
Thu, 0544° / 31°0.13
44 °
Castle Hill, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.13 in
Chance of precipitation33%
Record high69° (2022)
Record low18° (1965)
Fri, 0644° / 31°0.09
44 °
Castle Hill, Friday, 6 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.09 in
Chance of precipitation37%
Record high70° (2022)
Record low19° (1962)
Sat, 0743° / 31°0.09
43 °
Castle Hill, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high43°
Average low31°
Average precipitation0.09 in
Chance of precipitation40%
Record high62° (2022)
Record low9° (2002)
Sun, 0841° / 29°0.09
41 °
Castle Hill, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high41°
Average low29°
Average precipitation0.09 in
Chance of precipitation32%
Record high58° (1996)
Record low-2° (2002)
Mon, 0941° / 29°0.07
41 °
Castle Hill, Monday, 9 November
Climate normal for this date — 60-year average.
Average high41°
Average low29°
Average precipitation0.07 in
Chance of precipitation28%
Record high62° (2020)
Record low17° (1992)
Tue, 1041° / 29°0.1
41 °
Castle Hill, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high41°
Average low29°
Average precipitation0.1 in
Chance of precipitation43%
Record high67° (2020)
Record low11° (2004)
Wed, 1140° / 29°0.13
40 °
Castle Hill, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high40°
Average low29°
Average precipitation0.13 in
Chance of precipitation42%
Record high65° (2020)
Record low13° (1985)
Thu, 1239° / 27°0.15
39 °
Castle Hill, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high39°
Average low27°
Average precipitation0.15 in
Chance of precipitation35%
Record high61° (2020)
Record low9° (1968)
Fri, 1338° / 26°0.15
38 °
Castle Hill, Friday, 13 November
Climate normal for this date — 60-year average.
Average high38°
Average low26°
Average precipitation0.15 in
Chance of precipitation43%
Record high56° (1982)
Record low7° (2004)
Sat, 1438° / 25°0.11
38 °
Castle Hill, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high38°
Average low25°
Average precipitation0.11 in
Chance of precipitation40%
Record high53° (2006)
Record low-2° (2019)
Sun, 1538° / 26°0.18
38 °
Castle Hill, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high38°
Average low26°
Average precipitation0.18 in
Chance of precipitation42%
Record high57° (2008)
Record low6° (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 Hill, 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 Hill, 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.