Monthly outlook for Gladden Heights, PA: average high 82.8°, average low 61.4°. That is 1.9° above the climate normal for August. Precipitation is expected on 5 days (about 1.8 inches), against a normal of 6 days and 2.1 inches. The warmest day looks like 21 August (94.4°), the coolest 16 August (51.8°).
82.8°/61.4°
Average high / low
+1.9°
Above normal
5 / 6
Wet days / normal
1.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
78°
79.8°
-1°
19 August – 28 August
90.7°
79.2°
+6.4°
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 (10 mi).
Mon, 1081° / 67°0.58
81 °
Gladden Heights, Monday, 10 August
Heavy rain. High 81°, low 67°.
Pressure30.00 inHg
Wind8 mph SW
Humidity80%
Visibility6.2 mi
Dew point68°
Tue, 1184° / 63°0.97
84 °
Gladden Heights, Tuesday, 11 August
Heavy rain. High 84°, low 63°.
Pressure29.97 inHg
Wind8.1 mph SW
Humidity76%
Visibility6.2 mi
Dew point67°
Wed, 1280° / 64°0.06
80 °
Gladden Heights, Wednesday, 12 August
Light rain. High 80°, low 64°.
Pressure29.83 inHg
Wind8.1 mph SW
Humidity94%
Visibility6.2 mi
Dew point69°
Thu, 1377° / 57°0.07
77 °
Gladden Heights, Thursday, 13 August
Light rain. High 77°, low 57°.
Pressure29.91 inHg
Wind12.9 mph NW
Humidity45%
Visibility—
Dew point53°
Fri, 1474° / 53°0
74 °
Gladden Heights, Friday, 14 August
Overcast. High 74°, low 53°.
Pressure30.09 inHg
Wind8.1 mph NW
Humidity49%
Visibility—
Dew point50°
Sat, 1572° / 52°0
72 °
Gladden Heights, Saturday, 15 August
Overcast. High 72°, low 52°.
Pressure30.24 inHg
Wind8.1 mph N
Humidity43%
Visibility—
Dew point46°
Sun, 1669° / 52°0.02
69 °
Gladden Heights, Sunday, 16 August
Light rain. High 69°, low 52°.
Pressure30.18 inHg
Wind4.4 mph E
Humidity76%
Visibility—
Dew point53°
Mon, 1778° / 52°0
78 °
Gladden Heights, Monday, 17 August
Partly cloudy. High 78°, low 52°.
Pressure30.03 inHg
Wind5.2 mph NW
Humidity46%
Visibility—
Dew point52°
Tue, 1880° / 58°0
80 °
Gladden Heights, Tuesday, 18 August
Clear. High 80°, low 58°.
Pressure30.03 inHg
Wind4.9 mph NE
Humidity46%
Visibility—
Dew point55°
Wed, 1983° / 58°0
83 °
Gladden Heights, Wednesday, 19 August
Partly cloudy. High 83°, low 58°.
Pressure30.06 inHg
Wind4.3 mph SW
Humidity46%
Visibility—
Dew point58°
Thu, 2088° / 63°0
88 °
Gladden Heights, Thursday, 20 August
Mostly clear. High 88°, low 63°.
Pressure29.97 inHg
Wind8.4 mph S
Humidity45%
Visibility—
Dew point60°
Fri, 2194° / 72°0
94 °
Gladden Heights, Friday, 21 August
Mostly clear. High 94°, low 72°.
Pressure29.83 inHg
Wind8.9 mph N
Humidity54%
Visibility—
Dew point71°
Sat, 2290° / 63°0
90 °
Gladden Heights, Saturday, 22 August
Mostly clear. High 90°, low 63°.
Pressure29.94 inHg
Wind5.7 mph NE
Humidity34%
Visibility—
Dew point55°
Sun, 2394° / 67°0
94 °
Gladden Heights, Sunday, 23 August
Mostly clear. High 94°, low 67°.
Pressure29.88 inHg
Wind8.4 mph S
Humidity44%
Visibility—
Dew point64°
Mon, 2494° / 73°0.13
94 °
Gladden Heights, Monday, 24 August
Light rain. High 94°, low 73°.
Pressure29.97 inHg
Wind8.3 mph W
Humidity50%
Visibility—
Dew point70°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2580° / 61°0.09
80 °
Gladden Heights, 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 °
Gladden Heights, 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 °
Gladden Heights, 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 °
Gladden Heights, 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 °
Gladden Heights, 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 °
Gladden Heights, 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 °
Gladden Heights, 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 °
Gladden Heights, 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 °
Gladden Heights, 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 °
Gladden Heights, 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 °
Gladden Heights, 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 °
Gladden Heights, 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 °
Gladden Heights, 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 °
Gladden Heights, 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 Gladden Heights, 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 Gladden Heights, 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.