Monthly outlook for Mariner, ME: average high 55.4°, average low 45.1°. That is 0.6° below the climate normal for October. Precipitation is expected on 7 days (about 4.5 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 12 October (71.3°), the coolest 18 October (33.7°).
55.4°/45.1°
Average high / low
−0.6°
Below normal
7 / 5
Wet days / normal
4.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
56.7°
57.2°
-0.2°
21 October – 30 October
53.1°
54.1°
-0.6°
31 October – 9 November
at normal
51.1°
—
October records over 66 years
84.2°3 October 2023All-time high
28.2°26 October 2018All-time low
Climate normals and records are computed from the nearest reference point — Portland (6 mi).
Mon, 1271° / 45°0.23
71 °
Mariner, Monday, 12 October
Rain. High 71°, low 45°.
Pressure29.71 inHg
Wind3.2 mph W
Humidity70%
Visibility6.2 mi
Dew point52°
Tue, 1353° / 42°1.14
53 °
Mariner, Tuesday, 13 October
Heavy rain. High 53°, low 42°.
Pressure30.09 inHg
Wind8.3 mph NE
Humidity92%
Visibility2.4 mi
Dew point44°
Wed, 1457° / 51°0.32
57 °
Mariner, Wednesday, 14 October
Rain. High 57°, low 51°.
Pressure29.85 inHg
Wind7.6 mph N
Humidity82%
Visibility6.2 mi
Dew point49°
Thu, 1557° / 46°0
57 °
Mariner, Thursday, 15 October
Clear. High 57°, low 46°.
Pressure30.15 inHg
Wind11.5 mph NW
Humidity49%
Visibility6.2 mi
Dew point36°
Fri, 1654° / 44°0.69
54 °
Mariner, Friday, 16 October
Rain. High 54°, low 44°.
Pressure29.77 inHg
Wind25.3 mph NW
Humidity87%
Visibility—
Dew point47°
Sat, 1745° / 36°0
45 °
Mariner, Saturday, 17 October
Clear. High 45°, low 36°.
Pressure29.85 inHg
Wind21.2 mph NW
Humidity58%
Visibility—
Dew point29°
Sun, 1850° / 34°0
50 °
Mariner, Sunday, 18 October
Clear. High 50°, low 34°.
Pressure30.56 inHg
Wind17.6 mph NW
Humidity35%
Visibility—
Dew point16°
Mon, 1961° / 42°0
61 °
Mariner, Monday, 19 October
Clear. High 61°, low 42°.
Pressure30.33 inHg
Wind16.3 mph SW
Humidity39%
Visibility—
Dew point29°
Tue, 2063° / 48°0
63 °
Mariner, Tuesday, 20 October
Clear. High 63°, low 48°.
Pressure30.27 inHg
Wind9.6 mph N
Humidity50%
Visibility—
Dew point39°
Wed, 2152° / 46°0
52 °
Mariner, Wednesday, 21 October
Overcast. High 52°, low 46°.
Pressure30.50 inHg
Wind8.5 mph N
Humidity61%
Visibility—
Dew point38°
Thu, 2252° / 51°0
52 °
Mariner, Thursday, 22 October
Overcast. High 52°, low 51°.
Pressure30.47 inHg
Wind12.1 mph S
Humidity70%
Visibility—
Dew point42°
Fri, 2356° / 52°0.03
56 °
Mariner, Friday, 23 October
Light rain. High 56°, low 52°.
Pressure30.09 inHg
Wind24.8 mph SE
Humidity84%
Visibility—
Dew point49°
Sat, 2456° / 54°1.63
56 °
Mariner, Saturday, 24 October
Heavy rain. High 56°, low 54°.
Pressure29.26 inHg
Wind35.2 mph E
Humidity96%
Visibility—
Dew point54°
Sun, 2554° / 48°0.26
54 °
Mariner, Sunday, 25 October
Light rain. High 54°, low 48°.
Pressure29.38 inHg
Wind15.6 mph N
Humidity92%
Visibility—
Dew point50°
Mon, 2650° / 42°0.01
50 °
Mariner, Monday, 26 October
Light rain. High 50°, low 42°.
Pressure29.53 inHg
Wind14.7 mph NW
Humidity58%
Visibility—
Dew point35°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2753° / 43°0.12
53 °
Mariner, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high53°
Average low43°
Average precipitation0.12 in
Chance of precipitation27%
Record high76° (2023)
Record low31° (1976)
Wed, 2854° / 43°0.17
54 °
Mariner, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high54°
Average low43°
Average precipitation0.17 in
Chance of precipitation35%
Record high78° (2023)
Record low32° (1976)
Thu, 2952° / 41°0.11
52 °
Mariner, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high52°
Average low41°
Average precipitation0.11 in
Chance of precipitation32%
Record high67° (1971)
Record low31° (1965)
Fri, 3051° / 41°0.17
51 °
Mariner, Friday, 30 October
Climate normal for this date — 60-year average.
Average high51°
Average low41°
Average precipitation0.17 in
Chance of precipitation27%
Record high64° (1989)
Record low32° (2020)
Sat, 3152° / 42°0.12
52 °
Mariner, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high52°
Average low42°
Average precipitation0.12 in
Chance of precipitation23%
Record high76° (2024)
Record low29° (2020)
Sun, 0153° / 43°0.11
53 °
Mariner, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high53°
Average low43°
Average precipitation0.11 in
Chance of precipitation25%
Record high73° (2024)
Record low31° (2023)
Mon, 0252° / 42°0.17
52 °
Mariner, Monday, 2 November
Climate normal for this date — 60-year average.
Average high52°
Average low42°
Average precipitation0.17 in
Chance of precipitation32%
Record high64° (1971)
Record low26° (2002)
Tue, 0352° / 41°0.22
52 °
Mariner, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high52°
Average low41°
Average precipitation0.22 in
Chance of precipitation37%
Record high68° (2017)
Record low26° (2002)
Wed, 0451° / 41°0.07
51 °
Mariner, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high51°
Average low41°
Average precipitation0.07 in
Chance of precipitation25%
Record high66° (1990)
Record low28° (2020)
Thu, 0551° / 41°0.18
51 °
Mariner, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high51°
Average low41°
Average precipitation0.18 in
Chance of precipitation33%
Record high72° (2022)
Record low28° (1965)
Fri, 0651° / 42°0.14
51 °
Mariner, Friday, 6 November
Climate normal for this date — 60-year average.
Average high51°
Average low42°
Average precipitation0.14 in
Chance of precipitation40%
Record high77° (2024)
Record low30° (2021)
Sat, 0751° / 40°0.06
51 °
Mariner, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.06 in
Chance of precipitation20%
Record high71° (2022)
Record low25° (2002)
Sun, 0849° / 39°0.07
49 °
Mariner, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high49°
Average low39°
Average precipitation0.07 in
Chance of precipitation22%
Record high61° (1975)
Record low25° (2002)
Mon, 0949° / 39°0.1
49 °
Mariner, Monday, 9 November
Climate normal for this date — 60-year average.
Average high49°
Average low39°
Average precipitation0.1 in
Chance of precipitation30%
Record high62° (2020)
Record low24° (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 Mariner, 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 Mariner, 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.