Monthly outlook for Castine, ME: average high 48.8°, average low 39°. That is 2.3° above the climate normal for November. Precipitation is expected on 6 days (about 1.7 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 6 November (68.5°), the coolest 16 November (31.7°).
48.8°/39°
Average high / low
+2.3°
Above normal
6 / 5
Wet days / normal
1.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
5 November – 14 November
51.1°
46°
+2.8°
15 November – 24 November
44.8°
41.2°
+2°
25 November – 4 December
at normal
38.7°
—
November records over 66 years
71.6°6 November 2024All-time high
3.7°22 November 2018All-time low
Climate normals and records are computed from the nearest reference point — Swanville (13 mi).
Fri, 0669° / 54°0
69 °
Castine, Friday, 6 November
Light rain. High 69°, low 54°.
Pressure29.88 inHg
Wind2.7 mph NW
Humidity58%
Visibility6.2 mi
Dew point54°
Sat, 0753° / 43°0.42
53 °
Castine, Saturday, 7 November
Rain. High 53°, low 43°.
Pressure29.91 inHg
Wind11.5 mph NE
Humidity96%
Visibility1.8 mi
Dew point45°
Sun, 0844° / 41°0.36
44 °
Castine, Sunday, 8 November
Light rain. High 44°, low 41°.
Pressure29.47 inHg
Wind11 mph NW
Humidity96%
Visibility3.7 mi
Dew point43°
Mon, 0948° / 38°0.02
48 °
Castine, Monday, 9 November
Light rain. High 48°, low 38°.
Pressure29.53 inHg
Wind12.7 mph NW
Humidity59%
Visibility—
Dew point33°
Tue, 1050° / 37°0
50 °
Castine, Tuesday, 10 November
Overcast. High 50°, low 37°.
Pressure29.77 inHg
Wind8.3 mph W
Humidity59%
Visibility—
Dew point30°
Wed, 1152° / 42°0
52 °
Castine, Wednesday, 11 November
Overcast. High 52°, low 42°.
Pressure29.80 inHg
Wind7.1 mph S
Humidity78%
Visibility—
Dew point44°
Thu, 1247° / 40°0.39
47 °
Castine, Thursday, 12 November
Rain. High 47°, low 40°.
Pressure29.50 inHg
Wind13.8 mph N
Humidity81%
Visibility—
Dew point41°
Fri, 1339° / 36°0.34
39 °
Castine, Friday, 13 November
Snow. High 39°, low 36°.
Pressure29.35 inHg
Wind16 mph NW
Humidity98%
Visibility—
Dew point36°
Sat, 1443° / 37°0
43 °
Castine, Saturday, 14 November
Overcast. High 43°, low 37°.
Pressure29.41 inHg
Wind14.7 mph NW
Humidity68%
Visibility—
Dew point31°
Sun, 1544° / 35°0
44 °
Castine, Sunday, 15 November
Overcast. High 44°, low 35°.
Pressure29.47 inHg
Wind16.1 mph NW
Humidity59%
Visibility—
Dew point29°
Mon, 1643° / 32°0
43 °
Castine, Monday, 16 November
Mostly clear. High 43°, low 32°.
Pressure29.59 inHg
Wind14.4 mph NW
Humidity59%
Visibility—
Dew point25°
Tue, 1744° / 32°0
44 °
Castine, Tuesday, 17 November
Partly cloudy. High 44°, low 32°.
Pressure29.77 inHg
Wind10.1 mph NW
Humidity61%
Visibility—
Dew point28°
Wed, 1844° / 33°0
44 °
Castine, Wednesday, 18 November
Mostly clear. High 44°, low 33°.
Pressure29.77 inHg
Wind15.1 mph NW
Humidity63%
Visibility—
Dew point28°
Thu, 1945° / 35°0
45 °
Castine, Thursday, 19 November
Overcast. High 45°, low 35°.
Pressure30.18 inHg
Wind12.7 mph NW
Humidity62%
Visibility—
Dew point28°
Fri, 2049° / 37°0.1
49 °
Castine, Friday, 20 November
Light rain. High 49°, low 37°.
Pressure29.83 inHg
Wind17.6 mph SW
Humidity93%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2141° / 30°0.16
41 °
Castine, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high41°
Average low30°
Average precipitation0.16 in
Chance of precipitation30%
Record high58° (1991)
Record low18° (2022)
Sun, 2240° / 30°0.19
40 °
Castine, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high40°
Average low30°
Average precipitation0.19 in
Chance of precipitation43%
Record high56° (1992)
Record low4° (2018)
Mon, 2339° / 29°0.13
39 °
Castine, Monday, 23 November
Climate normal for this date — 60-year average.
Average high39°
Average low29°
Average precipitation0.13 in
Chance of precipitation28%
Record high61° (1999)
Record low9° (2018)
Tue, 2439° / 29°0.08
39 °
Castine, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high39°
Average low29°
Average precipitation0.08 in
Chance of precipitation35%
Record high56° (2014)
Record low7° (1989)
Wed, 2539° / 29°0.15
39 °
Castine, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high39°
Average low29°
Average precipitation0.15 in
Chance of precipitation37%
Record high56° (2014)
Record low13° (1993)
Thu, 2640° / 30°0.19
40 °
Castine, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high40°
Average low30°
Average precipitation0.19 in
Chance of precipitation55%
Record high54° (1979)
Record low11° (1978)
Fri, 2740° / 29°0.19
40 °
Castine, Friday, 27 November
Climate normal for this date — 60-year average.
Average high40°
Average low29°
Average precipitation0.19 in
Chance of precipitation48%
Record high56° (1999)
Record low6° (1978)
Sat, 2840° / 28°0.17
40 °
Castine, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high40°
Average low28°
Average precipitation0.17 in
Chance of precipitation40%
Record high56° (2011)
Record low10° (1987)
Sun, 2939° / 28°0.13
39 °
Castine, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high39°
Average low28°
Average precipitation0.13 in
Chance of precipitation38%
Record high57° (1990)
Record low5° (1989)
Mon, 3038° / 27°0.12
38 °
Castine, Monday, 30 November
Climate normal for this date — 60-year average.
Average high38°
Average low27°
Average precipitation0.12 in
Chance of precipitation25%
Record high55° (1963)
Record low4° (1989)
Tue, 0139° / 27°0.19
39 °
Castine, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high39°
Average low27°
Average precipitation0.19 in
Chance of precipitation32%
Record high57° (2001)
Record low4° (1989)
Wed, 0238° / 26°0.15
38 °
Castine, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high38°
Average low26°
Average precipitation0.15 in
Chance of precipitation33%
Record high51° (1985)
Record low-1° (1989)
Thu, 0338° / 26°0.19
38 °
Castine, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high38°
Average low26°
Average precipitation0.19 in
Chance of precipitation45%
Record high58° (2009)
Record low-1° (1976)
Fri, 0436° / 24°0.14
36 °
Castine, Friday, 4 December
Climate normal for this date — 60-year average.
Average high36°
Average low24°
Average precipitation0.14 in
Chance of precipitation28%
Record high59° (1982)
Record low3° (1972)
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 Castine, 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 Castine, 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.