Monthly outlook for Shaw Mills, ME: average high 78.4°, average low 58.3°. That is 2.1° above the climate normal for August. Precipitation is expected on 5 days (about 1.4 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 9 August (90.7°), the coolest 22 August (50.5°).
78.4°/58.3°
Average high / low
+2.1°
Above normal
5 / 5
Wet days / normal
1.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
80°
75.1°
+2.7°
18 August – 27 August
75.7°
73.5°
+1.2°
28 August – 6 September
at normal
71.8°
—
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 (13 mi).
Sun, 0991° / 68°0.03
91 °
Shaw Mills, Sunday, 9 August
Light rain. High 91°, low 68°.
Pressure29.85 inHg
Wind6 mph W
Humidity46%
Visibility6.2 mi
Dew point64°
Mon, 1085° / 65°0
85 °
Shaw Mills, Monday, 10 August
Overcast. High 85°, low 65°.
Pressure29.91 inHg
Wind8.5 mph S
Humidity41%
Visibility6.2 mi
Dew point58°
Tue, 1184° / 61°0.04
84 °
Shaw Mills, Tuesday, 11 August
Light rain. High 84°, low 61°.
Pressure29.71 inHg
Wind7.7 mph NW
Humidity46%
Visibility6.2 mi
Dew point60°
Wed, 1274° / 58°0.26
74 °
Shaw Mills, Wednesday, 12 August
Rain. High 74°, low 58°.
Pressure29.77 inHg
Wind3.2 mph S
Humidity91%
Visibility6.2 mi
Dew point60°
Thu, 1381° / 58°0.09
81 °
Shaw Mills, Thursday, 13 August
Light rain. High 81°, low 58°.
Pressure29.65 inHg
Wind8.9 mph NW
Humidity56%
Visibility—
Dew point57°
Fri, 1470° / 52°0
70 °
Shaw Mills, Friday, 14 August
Clear. High 70°, low 52°.
Pressure29.88 inHg
Wind11.9 mph W
Humidity39%
Visibility—
Dew point41°
Sat, 1576° / 53°0
76 °
Shaw Mills, Saturday, 15 August
Clear. High 76°, low 53°.
Pressure29.94 inHg
Wind10.7 mph NW
Humidity49%
Visibility—
Dew point48°
Sun, 1676° / 54°0
76 °
Shaw Mills, Sunday, 16 August
Clear. High 76°, low 54°.
Pressure30.15 inHg
Wind7.4 mph N
Humidity43%
Visibility—
Dew point46°
Mon, 1780° / 54°0
80 °
Shaw Mills, Monday, 17 August
Overcast. High 80°, low 54°.
Pressure30.15 inHg
Wind11 mph S
Humidity48%
Visibility—
Dew point51°
Tue, 1876° / 60°0.03
76 °
Shaw Mills, Tuesday, 18 August
Light rain. High 76°, low 60°.
Pressure30.12 inHg
Wind11 mph SW
Humidity97%
Visibility—
Dew point62°
Wed, 1981° / 60°0
81 °
Shaw Mills, Wednesday, 19 August
Overcast. High 81°, low 60°.
Pressure29.97 inHg
Wind11.2 mph S
Humidity56%
Visibility—
Dew point56°
Thu, 2070° / 61°0.62
70 °
Shaw Mills, Thursday, 20 August
Rain. High 70°, low 61°.
Pressure29.62 inHg
Wind10.1 mph S
Humidity98%
Visibility—
Dew point66°
Fri, 2172° / 55°0
72 °
Shaw Mills, Friday, 21 August
Mostly clear. High 72°, low 55°.
Pressure29.56 inHg
Wind13.8 mph NW
Humidity52%
Visibility—
Dew point52°
Sat, 2275° / 50°0
75 °
Shaw Mills, Saturday, 22 August
Clear. High 75°, low 50°.
Pressure29.94 inHg
Wind10.1 mph NW
Humidity35%
Visibility—
Dew point37°
Sun, 2380° / 51°0
80 °
Shaw Mills, Sunday, 23 August
Overcast. High 80°, low 51°.
Pressure30.06 inHg
Wind9.8 mph S
Humidity33%
Visibility—
Dew point39°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2473° / 62°0.07
73 °
Shaw Mills, Monday, 24 August
Climate normal for this date — 60-year average.
Average high73°
Average low62°
Average precipitation0.07 in
Chance of precipitation27%
Record high82° (1980)
Record low53° (1971)
Tue, 2573° / 62°0.11
73 °
Shaw 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 °
Shaw 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 °
Shaw 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 °
Shaw 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 °
Shaw 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 °
Shaw 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 °
Shaw 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 °
Shaw 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 °
Shaw 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 °
Shaw 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 °
Shaw 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 °
Shaw 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 °
Shaw 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)
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 Shaw 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 Shaw 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.