Monthly outlook for Harrington, ME: average high 53.9°, average low 39.6°. That is 0.5° below the climate normal for October. Precipitation is expected on 5 days (about 2.5 inches), against a normal of 5 days and 2.3 inches. The warmest day looks like 12 October (69°), the coolest 20 October (31.5°).
53.9°/39.6°
Average high / low
−0.5°
Below normal
5 / 5
Wet days / normal
2.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 October – 19 October
55°
55.6°
-0.4°
20 October – 29 October
52.2°
52.7°
-0.3°
30 October – 8 November
at normal
49.7°
—
October records over 66 years
80.8°3 October 2023All-time high
26.8°31 October 2020All-time low
Sun, 1158° / 33°0
58 °
Harrington, Sunday, 11 October
Overcast. High 58°, low 33°.
Pressure30.36 inHg
Wind7.9 mph SW
Humidity49%
Visibility6.2 mi
Dew point38°
Mon, 1269° / 48°0
69 °
Harrington, Monday, 12 October
Mostly clear. High 69°, low 48°.
Pressure29.74 inHg
Wind5.3 mph W
Humidity56%
Visibility6.2 mi
Dew point48°
Tue, 1349° / 44°0.58
49 °
Harrington, Tuesday, 13 October
Rain. High 49°, low 44°.
Pressure30.06 inHg
Wind9.8 mph E
Humidity66%
Visibility4.3 mi
Dew point38°
Wed, 1455° / 49°0.89
55 °
Harrington, Wednesday, 14 October
Rain. High 55°, low 49°.
Pressure29.71 inHg
Wind9.5 mph N
Humidity90%
Visibility6.2 mi
Dew point52°
Thu, 1555° / 42°0
55 °
Harrington, Thursday, 15 October
Overcast. High 55°, low 42°.
Pressure29.88 inHg
Wind16.4 mph NW
Humidity55%
Visibility—
Dew point36°
Fri, 1651° / 36°0.07
51 °
Harrington, Friday, 16 October
Light rain. High 51°, low 36°.
Pressure30.12 inHg
Wind15.7 mph S
Humidity50%
Visibility—
Dew point27°
Sat, 1759° / 54°0.63
59 °
Harrington, Saturday, 17 October
Rain. High 59°, low 54°.
Pressure29.83 inHg
Wind13.5 mph S
Humidity98%
Visibility—
Dew point58°
Sun, 1853° / 42°0.29
53 °
Harrington, Sunday, 18 October
Light rain. High 53°, low 42°.
Pressure29.83 inHg
Wind14 mph N
Humidity93%
Visibility—
Dew point47°
Mon, 1946° / 35°0
46 °
Harrington, Monday, 19 October
Overcast. High 46°, low 35°.
Pressure30.30 inHg
Wind15.1 mph N
Humidity63%
Visibility—
Dew point29°
Tue, 2046° / 31°0
46 °
Harrington, Tuesday, 20 October
Clear. High 46°, low 31°.
Pressure30.47 inHg
Wind12.7 mph N
Humidity41%
Visibility—
Dew point18°
Wed, 2150° / 32°0
50 °
Harrington, Wednesday, 21 October
Clear. High 50°, low 32°.
Pressure30.53 inHg
Wind5.7 mph N
Humidity37%
Visibility—
Dew point19°
Thu, 2251° / 35°0
51 °
Harrington, Thursday, 22 October
Clear. High 51°, low 35°.
Pressure30.65 inHg
Wind5.7 mph N
Humidity46%
Visibility—
Dew point27°
Fri, 2354° / 36°0
54 °
Harrington, Friday, 23 October
Clear. High 54°, low 36°.
Pressure30.47 inHg
Wind12.4 mph N
Humidity59%
Visibility—
Dew point33°
Sat, 2455° / 39°0
55 °
Harrington, Saturday, 24 October
Overcast. High 55°, low 39°.
Pressure30.27 inHg
Wind14.2 mph N
Humidity48%
Visibility—
Dew point30°
Sun, 2557° / 39°0
57 °
Harrington, Sunday, 25 October
Partly cloudy. High 57°, low 39°.
Pressure30.27 inHg
Wind9.7 mph N
Humidity54%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2652° / 43°0.18
52 °
Harrington, Monday, 26 October
Climate normal for this date — 60-year average.
Average high52°
Average low43°
Average precipitation0.18 in
Chance of precipitation42%
Record high71° (2023)
Record low29° (2018)
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)
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.