Monthly outlook for McConnells Mills, PA: average high 75.6°, average low 58.3°. That is 2.1° below the climate normal for August. Precipitation is expected on 5 days (about 3.3 inches), against a normal of 6 days and 2.1 inches. The warmest day looks like 9 August (84.4°), the coolest 15 August (51.2°).
75.6°/58.3°
Average high / low
−2.1°
Below normal
5 / 6
Wet days / normal
3.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
76.7°
79.8°
-1.7°
19 August – 28 August
73.8°
79.2°
-3°
29 August – 7 September
at normal
77.7°
—
August records over 66 years
95.7°17 August 1988All-time high
44.1°29 August 1982All-time low
Climate normals and records are computed from the nearest reference point — Mount Lebanon (13 mi).
Mon, 1083° / 67°1.37
83 °
McConnells Mills, Monday, 10 August
Heavy rain. High 83°, low 67°.
Pressure30.03 inHg
Wind9.8 mph SW
Humidity80%
Visibility6.2 mi
Dew point67°
Tue, 1181° / 64°0.85
81 °
McConnells Mills, Tuesday, 11 August
Heavy rain. High 81°, low 64°.
Pressure30.00 inHg
Wind8.2 mph W
Humidity77%
Visibility6.2 mi
Dew point66°
Wed, 1277° / 64°0.53
77 °
McConnells Mills, Wednesday, 12 August
Rain. High 77°, low 64°.
Pressure29.83 inHg
Wind11.8 mph SW
Humidity74%
Visibility6.2 mi
Dew point67°
Thu, 1377° / 62°0
77 °
McConnells Mills, Thursday, 13 August
Mostly clear. High 77°, low 62°.
Pressure29.97 inHg
Wind9.8 mph W
Humidity48%
Visibility—
Dew point54°
Fri, 1472° / 57°0
72 °
McConnells Mills, Friday, 14 August
Overcast. High 72°, low 57°.
Pressure30.06 inHg
Wind9.8 mph N
Humidity57%
Visibility—
Dew point55°
Sat, 1571° / 51°0
71 °
McConnells Mills, Saturday, 15 August
Overcast. High 71°, low 51°.
Pressure30.27 inHg
Wind6.1 mph N
Humidity49%
Visibility—
Dew point48°
Sun, 1672° / 53°0.04
72 °
McConnells Mills, Sunday, 16 August
Light rain. High 72°, low 53°.
Pressure30.09 inHg
Wind6.4 mph E
Humidity70%
Visibility—
Dew point55°
Mon, 1773° / 59°0.02
73 °
McConnells Mills, Monday, 17 August
Light rain. High 73°, low 59°.
Pressure30.00 inHg
Wind7 mph NW
Humidity71%
Visibility—
Dew point60°
Tue, 1877° / 55°0
77 °
McConnells Mills, Tuesday, 18 August
Overcast. High 77°, low 55°.
Pressure29.97 inHg
Wind7 mph SE
Humidity52%
Visibility—
Dew point56°
Wed, 1979° / 61°0.09
79 °
McConnells Mills, Wednesday, 19 August
Light rain. High 79°, low 61°.
Pressure29.74 inHg
Wind11.7 mph SW
Humidity70%
Visibility—
Dew point66°
Thu, 2067° / 57°0
67 °
McConnells Mills, Thursday, 20 August
Overcast. High 67°, low 57°.
Pressure29.88 inHg
Wind7.9 mph NW
Humidity71%
Visibility—
Dew point56°
Fri, 2174° / 52°0
74 °
McConnells Mills, Friday, 21 August
Partly cloudy. High 74°, low 52°.
Pressure29.91 inHg
Wind6.2 mph S
Humidity48%
Visibility—
Dew point50°
Sat, 2282° / 58°0.44
82 °
McConnells Mills, Saturday, 22 August
Rain. High 82°, low 58°.
Pressure29.83 inHg
Wind12.5 mph W
Humidity50%
Visibility—
Dew point59°
Sun, 2368° / 56°0.01
68 °
McConnells Mills, Sunday, 23 August
Light rain. High 68°, low 56°.
Pressure30.03 inHg
Wind12.5 mph NW
Humidity71%
Visibility—
Dew point57°
Mon, 2473° / 52°0
73 °
McConnells Mills, Monday, 24 August
Clear. High 73°, low 52°.
Pressure30.21 inHg
Wind6.6 mph N
Humidity46%
Visibility—
Dew point47°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2580° / 61°0.09
80 °
McConnells Mills, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high80°
Average low61°
Average precipitation0.09 in
Chance of precipitation32%
Record high90° (2020)
Record low50° (1977)
Wed, 2680° / 62°0.09
80 °
McConnells Mills, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high80°
Average low62°
Average precipitation0.09 in
Chance of precipitation32%
Record high92° (1993)
Record low52° (1963)
Thu, 2780° / 63°0.13
80 °
McConnells Mills, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.13 in
Chance of precipitation45%
Record high94° (2024)
Record low51° (1969)
Fri, 2880° / 63°0.19
80 °
McConnells Mills, Friday, 28 August
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.19 in
Chance of precipitation40%
Record high93° (2024)
Record low49° (1968)
Sat, 2979° / 62°0.13
79 °
McConnells Mills, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.13 in
Chance of precipitation40%
Record high90° (1991)
Record low44° (1982)
Sun, 3079° / 61°0.14
79 °
McConnells Mills, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high79°
Average low61°
Average precipitation0.14 in
Chance of precipitation30%
Record high91° (1993)
Record low46° (1986)
Mon, 3178° / 61°0.16
78 °
McConnells Mills, Monday, 31 August
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.16 in
Chance of precipitation33%
Record high92° (2012)
Record low50° (1976)
Tue, 0178° / 60°0.1
78 °
McConnells Mills, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high78°
Average low60°
Average precipitation0.1 in
Chance of precipitation23%
Record high90° (2010)
Record low46° (1967)
Wed, 0278° / 60°0.13
78 °
McConnells Mills, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high78°
Average low60°
Average precipitation0.13 in
Chance of precipitation43%
Record high92° (2010)
Record low48° (1967)
Thu, 0378° / 60°0.1
78 °
McConnells Mills, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high78°
Average low60°
Average precipitation0.1 in
Chance of precipitation37%
Record high93° (2011)
Record low47° (1967)
Fri, 0478° / 61°0.09
78 °
McConnells Mills, Friday, 4 September
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.09 in
Chance of precipitation37%
Record high91° (2023)
Record low47° (1997)
Sat, 0577° / 60°0.11
77 °
McConnells Mills, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high77°
Average low60°
Average precipitation0.11 in
Chance of precipitation33%
Record high91° (2023)
Record low47° (1997)
Sun, 0677° / 59°0.14
77 °
McConnells Mills, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high77°
Average low59°
Average precipitation0.14 in
Chance of precipitation30%
Record high92° (2023)
Record low45° (1984)
Mon, 0776° / 59°0.11
76 °
McConnells Mills, Monday, 7 September
Climate normal for this date — 60-year average.
Average high76°
Average low59°
Average precipitation0.11 in
Chance of precipitation33%
Record high88° (2010)
Record low46° (1962)
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 McConnells Mills, PA 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 McConnells Mills, PA 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.