Monthly outlook for Harrington, ME: average high 51.5°, average low 38.3°. That is 1.7° below the climate normal for October. Precipitation is expected on 4 days (about 2.6 inches), against a normal of 5 days and 2.4 inches. The warmest day looks like 12 October (69°), the coolest 19 October (29.2°).
51.5°/38.3°
Average high / low
−1.7°
Below normal
4 / 5
Wet days / normal
2.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
52.4°
55.3°
-1.6°
21 October – 30 October
50°
52.3°
-1.3°
31 October – 9 November
at normal
49.5°
—
October records over 66 years
80.8°3 October 2023All-time high
26.8°31 October 2020All-time low
Mon, 1269° / 45°0
69 °
Harrington, Monday, 12 October
Mostly clear. High 69°, low 45°.
Pressure29.71 inHg
Wind4 mph W
Humidity57%
Visibility6.2 mi
Dew point47°
Tue, 1349° / 40°0.55
49 °
Harrington, Tuesday, 13 October
Rain. High 49°, low 40°.
Pressure30.12 inHg
Wind8.5 mph E
Humidity59%
Visibility6.2 mi
Dew point36°
Wed, 1456° / 47°0.7
56 °
Harrington, Wednesday, 14 October
Rain. High 56°, low 47°.
Pressure29.77 inHg
Wind8.6 mph NE
Humidity86%
Visibility6.2 mi
Dew point50°
Thu, 1556° / 41°0
56 °
Harrington, Thursday, 15 October
Mostly clear. High 56°, low 41°.
Pressure29.97 inHg
Wind15.1 mph NW
Humidity47%
Visibility6.2 mi
Dew point34°
Fri, 1645° / 37°1.02
45 °
Harrington, Friday, 16 October
Rain. High 45°, low 37°.
Pressure29.94 inHg
Wind15.1 mph N
Humidity70%
Visibility—
Dew point34°
Sat, 1753° / 40°0.29
53 °
Harrington, Saturday, 17 October
Rain. High 53°, low 40°.
Pressure29.53 inHg
Wind19 mph NW
Humidity75%
Visibility—
Dew point44°
Sun, 1844° / 33°0.01
44 °
Harrington, Sunday, 18 October
Light rain. High 44°, low 33°.
Pressure30.00 inHg
Wind16.9 mph N
Humidity57%
Visibility—
Dew point25°
Mon, 1945° / 29°0
45 °
Harrington, Monday, 19 October
Clear. High 45°, low 29°.
Pressure30.53 inHg
Wind10 mph SW
Humidity42%
Visibility—
Dew point19°
Tue, 2053° / 42°0
53 °
Harrington, Tuesday, 20 October
Partly cloudy. High 53°, low 42°.
Pressure30.27 inHg
Wind8.8 mph SW
Humidity57%
Visibility—
Dew point36°
Wed, 2151° / 37°0
51 °
Harrington, Wednesday, 21 October
Clear. High 51°, low 37°.
Pressure30.42 inHg
Wind8.1 mph NE
Humidity58%
Visibility—
Dew point33°
Thu, 2250° / 34°0
50 °
Harrington, Thursday, 22 October
Mostly clear. High 50°, low 34°.
Pressure30.50 inHg
Wind9.1 mph N
Humidity54%
Visibility—
Dew point28°
Fri, 2349° / 35°0
49 °
Harrington, Friday, 23 October
Clear. High 49°, low 35°.
Pressure30.45 inHg
Wind7.3 mph N
Humidity57%
Visibility—
Dew point31°
Sat, 2450° / 38°0
50 °
Harrington, Saturday, 24 October
Overcast. High 50°, low 38°.
Pressure30.21 inHg
Wind4.3 mph N
Humidity66%
Visibility—
Dew point36°
Sun, 2551° / 40°0.04
51 °
Harrington, Sunday, 25 October
Light rain. High 51°, low 40°.
Pressure29.88 inHg
Wind11.2 mph N
Humidity61%
Visibility—
Dew point36°
Mon, 2649° / 39°0.01
49 °
Harrington, Monday, 26 October
Light rain. High 49°, low 39°.
Pressure29.91 inHg
Wind10.4 mph N
Humidity57%
Visibility—
Dew point30°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2751° / 42°0.15
51 °
Harrington, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high51°
Average low42°
Average precipitation0.15 in
Chance of precipitation32%
Record high70° (1963)
Record low28° (2018)
Wed, 2852° / 41°0.18
52 °
Harrington, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high52°
Average low41°
Average precipitation0.18 in
Chance of precipitation35%
Record high76° (2023)
Record low29° (2024)
Thu, 2951° / 41°0.14
51 °
Harrington, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high51°
Average low41°
Average precipitation0.14 in
Chance of precipitation30%
Record high65° (1989)
Record low28° (2024)
Fri, 3049° / 40°0.17
49 °
Harrington, Friday, 30 October
Climate normal for this date — 60-year average.
Average high49°
Average low40°
Average precipitation0.17 in
Chance of precipitation30%
Record high63° (2017)
Record low31° (2002)
Sat, 3150° / 40°0.14
50 °
Harrington, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.14 in
Chance of precipitation28%
Record high75° (2024)
Record low27° (2020)
Sun, 0152° / 42°0.11
52 °
Harrington, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high52°
Average low42°
Average precipitation0.11 in
Chance of precipitation33%
Record high73° (2024)
Record low26° (2023)
Mon, 0250° / 41°0.16
50 °
Harrington, Monday, 2 November
Climate normal for this date — 60-year average.
Average high50°
Average low41°
Average precipitation0.16 in
Chance of precipitation33%
Record high59° (1971)
Record low25° (2002)
Tue, 0350° / 40°0.24
50 °
Harrington, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.24 in
Chance of precipitation47%
Record high63° (2017)
Record low25° (2002)
Wed, 0449° / 40°0.07
49 °
Harrington, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high49°
Average low40°
Average precipitation0.07 in
Chance of precipitation32%
Record high61° (2022)
Record low25° (2020)
Thu, 0550° / 40°0.15
50 °
Harrington, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.15 in
Chance of precipitation38%
Record high66° (2022)
Record low26° (1965)
Fri, 0649° / 41°0.19
49 °
Harrington, Friday, 6 November
Climate normal for this date — 60-year average.
Average high49°
Average low41°
Average precipitation0.19 in
Chance of precipitation45%
Record high69° (2024)
Record low28° (2023)
Sat, 0749° / 40°0.1
49 °
Harrington, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high49°
Average low40°
Average precipitation0.1 in
Chance of precipitation35%
Record high68° (2022)
Record low20° (2002)
Sun, 0847° / 38°0.13
47 °
Harrington, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high47°
Average low38°
Average precipitation0.13 in
Chance of precipitation22%
Record high61° (2025)
Record low17° (2002)
Mon, 0947° / 38°0.12
47 °
Harrington, Monday, 9 November
Climate normal for this date — 60-year average.
Average high47°
Average low38°
Average precipitation0.12 in
Chance of precipitation28%
Record high62° (2020)
Record low25° (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 Harrington, 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 Harrington, 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.