Monthly outlook for Bar Mills, ME: average high 80.5°, average low 60.7°. That is 3.4° above the climate normal for August. Precipitation is expected on 4 days (about 0.4 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 9 August (92.3°), the coolest 14 August (55.1°).
80.5°/60.7°
Average high / low
+3.4°
Above normal
4 / 5
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
79.7°
75°
+2.6°
19 August – 28 August
81.9°
73.4°
+4.7°
29 August – 7 September
at normal
71.6°
—
August records over 66 years
93.6°12 August 2025All-time high
48°30 August 1965All-time low
Climate normals and records are computed from the nearest reference point — Portland (15 mi).
Mon, 1086° / 65°0.15
86 °
Bar Mills, Monday, 10 August
Rain. High 86°, low 65°.
Pressure29.94 inHg
Wind8.3 mph S
Humidity38%
Visibility6.2 mi
Dew point57°
Tue, 1185° / 62°0.02
85 °
Bar Mills, Tuesday, 11 August
Light rain. High 85°, low 62°.
Pressure29.68 inHg
Wind5.8 mph NW
Humidity47%
Visibility6.2 mi
Dew point61°
Wed, 1280° / 61°0
80 °
Bar Mills, Wednesday, 12 August
Partly cloudy. High 80°, low 61°.
Pressure29.74 inHg
Wind6.2 mph SW
Humidity33%
Visibility6.2 mi
Dew point50°
Thu, 1378° / 59°0.07
78 °
Bar Mills, Thursday, 13 August
Light rain. High 78°, low 59°.
Pressure29.62 inHg
Wind12.8 mph W
Humidity91%
Visibility—
Dew point64°
Fri, 1472° / 55°0
72 °
Bar Mills, Friday, 14 August
Clear. High 72°, low 55°.
Pressure29.80 inHg
Wind14.6 mph NW
Humidity44%
Visibility—
Dew point44°
Sat, 1573° / 56°0
73 °
Bar Mills, Saturday, 15 August
Overcast. High 73°, low 56°.
Pressure29.88 inHg
Wind14.2 mph NW
Humidity47%
Visibility—
Dew point46°
Sun, 1679° / 55°0
79 °
Bar Mills, Sunday, 16 August
Partly cloudy. High 79°, low 55°.
Pressure30.06 inHg
Wind8.4 mph N
Humidity37%
Visibility—
Dew point45°
Mon, 1776° / 60°0.09
76 °
Bar Mills, Monday, 17 August
Light rain. High 76°, low 60°.
Pressure30.03 inHg
Wind9.1 mph SE
Humidity46%
Visibility—
Dew point52°
Tue, 1877° / 56°0.01
77 °
Bar Mills, Tuesday, 18 August
Light rain. High 77°, low 56°.
Pressure30.00 inHg
Wind4.5 mph S
Humidity54%
Visibility—
Dew point54°
Wed, 1978° / 56°0
78 °
Bar Mills, Wednesday, 19 August
Overcast. High 78°, low 56°.
Pressure30.15 inHg
Wind6.5 mph SE
Humidity54%
Visibility—
Dew point55°
Thu, 2085° / 59°0
85 °
Bar Mills, Thursday, 20 August
Overcast. High 85°, low 59°.
Pressure30.06 inHg
Wind10.8 mph S
Humidity51%
Visibility—
Dew point58°
Fri, 2190° / 68°0.02
90 °
Bar Mills, Friday, 21 August
Light rain. High 90°, low 68°.
Pressure29.83 inHg
Wind10.4 mph SW
Humidity74%
Visibility—
Dew point68°
Sat, 2286° / 67°0
86 °
Bar Mills, Saturday, 22 August
Partly cloudy. High 86°, low 67°.
Pressure29.85 inHg
Wind7.5 mph SE
Humidity52%
Visibility—
Dew point64°
Sun, 2384° / 62°0
84 °
Bar Mills, Sunday, 23 August
Clear. High 84°, low 62°.
Pressure29.94 inHg
Wind4.9 mph SE
Humidity54%
Visibility—
Dew point60°
Mon, 2469° / 61°0.02
69 °
Bar Mills, Monday, 24 August
Light rain. High 69°, low 61°.
Pressure30.12 inHg
Wind5.2 mph NE
Humidity95%
Visibility—
Dew point61°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2573° / 62°0.11
73 °
Bar Mills, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high73°
Average low62°
Average precipitation0.11 in
Chance of precipitation32%
Record high86° (2020)
Record low53° (1989)
Wed, 2674° / 62°0.04
74 °
Bar Mills, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high74°
Average low62°
Average precipitation0.04 in
Chance of precipitation17%
Record high86° (2021)
Record low54° (2019)
Thu, 2774° / 62°0.05
74 °
Bar Mills, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high74°
Average low62°
Average precipitation0.05 in
Chance of precipitation27%
Record high84° (1983)
Record low52° (2019)
Fri, 2873° / 62°0.14
73 °
Bar Mills, Friday, 28 August
Climate normal for this date — 60-year average.
Average high73°
Average low62°
Average precipitation0.14 in
Chance of precipitation28%
Record high90° (2018)
Record low54° (2025)
Sat, 2972° / 62°0.15
72 °
Bar Mills, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high72°
Average low62°
Average precipitation0.15 in
Chance of precipitation28%
Record high86° (2010)
Record low49° (1982)
Sun, 3073° / 61°0.14
73 °
Bar Mills, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high73°
Average low61°
Average precipitation0.14 in
Chance of precipitation27%
Record high86° (2010)
Record low48° (1965)
Mon, 3173° / 61°0.09
73 °
Bar Mills, Monday, 31 August
Climate normal for this date — 60-year average.
Average high73°
Average low61°
Average precipitation0.09 in
Chance of precipitation22%
Record high89° (2010)
Record low48° (1965)
Tue, 0172° / 60°0.03
72 °
Bar Mills, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high72°
Average low60°
Average precipitation0.03 in
Chance of precipitation18%
Record high85° (2010)
Record low50° (2017)
Wed, 0271° / 60°0.11
71 °
Bar Mills, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high71°
Average low60°
Average precipitation0.11 in
Chance of precipitation28%
Record high87° (2010)
Record low49° (2017)
Thu, 0371° / 60°0.11
71 °
Bar Mills, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high71°
Average low60°
Average precipitation0.11 in
Chance of precipitation30%
Record high87° (2018)
Record low52° (2024)
Fri, 0471° / 60°0.14
71 °
Bar Mills, Friday, 4 September
Climate normal for this date — 60-year average.
Average high71°
Average low60°
Average precipitation0.14 in
Chance of precipitation33%
Record high83° (2023)
Record low53° (1965)
Sat, 0571° / 60°0.08
71 °
Bar Mills, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high71°
Average low60°
Average precipitation0.08 in
Chance of precipitation22%
Record high89° (2023)
Record low50° (1963)
Sun, 0670° / 60°0.12
70 °
Bar Mills, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high70°
Average low60°
Average precipitation0.12 in
Chance of precipitation32%
Record high89° (2018)
Record low50° (2000)
Mon, 0771° / 59°0.17
71 °
Bar Mills, Monday, 7 September
Climate normal for this date — 60-year average.
Average high71°
Average low59°
Average precipitation0.17 in
Chance of precipitation28%
Record high86° (2023)
Record low52° (1988)
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 Bar Mills, 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 Bar Mills, 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.