Monthly outlook for Greenville, ME: average high 50.9°, average low 38.6°. That is 1.4° above the climate normal for October. Precipitation is expected on 4 days (about 2.1 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 25 October (58.4°), the coolest 18 October (30.9°).
50.9°/38.6°
Average high / low
+1.4°
Above normal
4 / 5
Wet days / normal
2.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
49.5°
49.6°
-0°
25 October – 3 November
53.2°
45.8°
+4.1°
4 November – 13 November
at normal
41.5°
—
October records over 66 years
80.8°6 October 2025All-time high
21.9°20 October 1972All-time low
Fri, 1650° / 35°0.31
50 °
Greenville, Friday, 16 October
Rain. High 50°, low 35°.
Pressure29.83 inHg
Wind15.4 mph SE
Humidity96%
Visibility3.4 mi
Dew point40°
Sat, 1750° / 34°0
50 °
Greenville, Saturday, 17 October
Mostly clear. High 50°, low 34°.
Pressure29.88 inHg
Wind15.8 mph NW
Humidity70%
Visibility6.2 mi
Dew point27°
Sun, 1846° / 31°0
46 °
Greenville, Sunday, 18 October
Mostly clear. High 46°, low 31°.
Pressure30.45 inHg
Wind8.5 mph W
Humidity62%
Visibility6.2 mi
Dew point23°
Mon, 1958° / 36°0
58 °
Greenville, Monday, 19 October
Clear. High 58°, low 36°.
Pressure30.36 inHg
Wind8.1 mph W
Humidity50%
Visibility—
Dew point32°
Tue, 2057° / 41°0
57 °
Greenville, Tuesday, 20 October
Clear. High 57°, low 41°.
Pressure30.27 inHg
Wind10.2 mph NW
Humidity69%
Visibility—
Dew point40°
Wed, 2147° / 34°0
47 °
Greenville, Wednesday, 21 October
Overcast. High 47°, low 34°.
Pressure30.47 inHg
Wind7.5 mph N
Humidity63%
Visibility—
Dew point31°
Thu, 2250° / 32°0
50 °
Greenville, Thursday, 22 October
Overcast. High 50°, low 32°.
Pressure30.47 inHg
Wind6 mph S
Humidity60%
Visibility—
Dew point30°
Fri, 2348° / 45°0.09
48 °
Greenville, Friday, 23 October
Light rain. High 48°, low 45°.
Pressure30.27 inHg
Wind8.9 mph NW
Humidity89%
Visibility—
Dew point45°
Sat, 2441° / 36°0.03
41 °
Greenville, Saturday, 24 October
Light rain. High 41°, low 36°.
Pressure30.59 inHg
Wind6.4 mph SE
Humidity81%
Visibility—
Dew point31°
Sun, 2558° / 39°0
58 °
Greenville, Sunday, 25 October
Overcast. High 58°, low 39°.
Pressure30.39 inHg
Wind5.2 mph S
Humidity80%
Visibility—
Dew point44°
Mon, 2656° / 47°0
56 °
Greenville, Monday, 26 October
Overcast. High 56°, low 47°.
Pressure30.18 inHg
Wind11.5 mph S
Humidity95%
Visibility—
Dew point48°
Tue, 2756° / 42°0.01
56 °
Greenville, Tuesday, 27 October
Light rain. High 56°, low 42°.
Pressure30.12 inHg
Wind14 mph NW
Humidity71%
Visibility—
Dew point43°
Wed, 2853° / 40°0
53 °
Greenville, Wednesday, 28 October
Overcast. High 53°, low 40°.
Pressure30.18 inHg
Wind4.2 mph SE
Humidity60%
Visibility—
Dew point36°
Thu, 2948° / 44°0.96
48 °
Greenville, Thursday, 29 October
Rain. High 48°, low 44°.
Pressure30.03 inHg
Wind14.4 mph E
Humidity97%
Visibility—
Dew point45°
Fri, 3047° / 44°0.66
47 °
Greenville, Friday, 30 October
Rain. High 47°, low 44°.
Pressure29.56 inHg
Wind22 mph NW
Humidity94%
Visibility—
Dew point43°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3146° / 34°0.1
46 °
Greenville, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.1 in
Chance of precipitation27%
Record high70° (2024)
Record low24° (2020)
Sun, 0146° / 34°0.1
46 °
Greenville, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.1 in
Chance of precipitation33%
Record high65° (2024)
Record low23° (1965)
Mon, 0244° / 34°0.17
44 °
Greenville, Monday, 2 November
Climate normal for this date — 60-year average.
Average high44°
Average low34°
Average precipitation0.17 in
Chance of precipitation38%
Record high58° (2001)
Record low15° (2002)
Tue, 0344° / 33°0.2
44 °
Greenville, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high44°
Average low33°
Average precipitation0.2 in
Chance of precipitation48%
Record high58° (2017)
Record low15° (2002)
Wed, 0444° / 33°0.07
44 °
Greenville, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high44°
Average low33°
Average precipitation0.07 in
Chance of precipitation32%
Record high64° (2022)
Record low19° (2002)
Thu, 0544° / 32°0.13
44 °
Greenville, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high44°
Average low32°
Average precipitation0.13 in
Chance of precipitation37%
Record high67° (2022)
Record low17° (1965)
Fri, 0643° / 33°0.11
43 °
Greenville, Friday, 6 November
Climate normal for this date — 60-year average.
Average high43°
Average low33°
Average precipitation0.11 in
Chance of precipitation40%
Record high69° (2022)
Record low22° (1973)
Sat, 0743° / 32°0.07
43 °
Greenville, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high43°
Average low32°
Average precipitation0.07 in
Chance of precipitation33%
Record high62° (2020)
Record low11° (2002)
Sun, 0841° / 31°0.09
41 °
Greenville, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high41°
Average low31°
Average precipitation0.09 in
Chance of precipitation25%
Record high57° (1975)
Record low11° (2002)
Mon, 0941° / 30°0.11
41 °
Greenville, Monday, 9 November
Climate normal for this date — 60-year average.
Average high41°
Average low30°
Average precipitation0.11 in
Chance of precipitation35%
Record high65° (2020)
Record low16° (1971)
Tue, 1041° / 30°0.09
41 °
Greenville, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high41°
Average low30°
Average precipitation0.09 in
Chance of precipitation40%
Record high67° (2020)
Record low15° (1965)
Wed, 1140° / 30°0.12
40 °
Greenville, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high40°
Average low30°
Average precipitation0.12 in
Chance of precipitation48%
Record high63° (2022)
Record low17° (2017)
Thu, 1239° / 29°0.15
39 °
Greenville, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high39°
Average low29°
Average precipitation0.15 in
Chance of precipitation30%
Record high62° (2022)
Record low16° (1990)
Fri, 1338° / 27°0.16
38 °
Greenville, Friday, 13 November
Climate normal for this date — 60-year average.
Average high38°
Average low27°
Average precipitation0.16 in
Chance of precipitation40%
Record high55° (1982)
Record low9° (1986)
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 Greenville, 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 Greenville, 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.