Monthly outlook for Donaldsons Crossroads, PA: average high 83.2°, average low 62.6°. That is 2.1° above the climate normal for August. Precipitation is expected on 5 days (about 2.1 inches), against a normal of 6 days and 2.1 inches. The warmest day looks like 24 August (94.3°), the coolest 16 August (52.9°).
83.2°/62.6°
Average high / low
+2.1°
Above normal
5 / 6
Wet days / normal
2.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
78.4°
79.8°
-0.8°
19 August – 28 August
91.1°
79.2°
+6.6°
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 (8 mi).
Mon, 1083° / 68°0.67
83 °
Donaldsons Crossroads, Monday, 10 August
Heavy rain. High 83°, low 68°.
Pressure30.00 inHg
Wind8 mph SW
Humidity80%
Visibility6.2 mi
Dew point69°
Tue, 1184° / 64°1.11
84 °
Donaldsons Crossroads, Tuesday, 11 August
Heavy rain. High 84°, low 64°.
Pressure29.97 inHg
Wind8.3 mph SW
Humidity80%
Visibility6.2 mi
Dew point67°
Wed, 1279° / 65°0.1
79 °
Donaldsons Crossroads, Wednesday, 12 August
Light rain. High 79°, low 65°.
Pressure29.83 inHg
Wind8.1 mph SW
Humidity93%
Visibility6.2 mi
Dew point69°
Thu, 1378° / 60°0.06
78 °
Donaldsons Crossroads, Thursday, 13 August
Light rain. High 78°, low 60°.
Pressure29.91 inHg
Wind12.7 mph NW
Humidity46%
Visibility—
Dew point54°
Fri, 1475° / 55°0
75 °
Donaldsons Crossroads, Friday, 14 August
Overcast. High 75°, low 55°.
Pressure30.09 inHg
Wind8.1 mph N
Humidity50%
Visibility—
Dew point51°
Sat, 1573° / 55°0
73 °
Donaldsons Crossroads, Saturday, 15 August
Overcast. High 73°, low 55°.
Pressure30.24 inHg
Wind7.7 mph N
Humidity43%
Visibility—
Dew point46°
Sun, 1668° / 53°0.02
68 °
Donaldsons Crossroads, Sunday, 16 August
Light rain. High 68°, low 53°.
Pressure30.18 inHg
Wind4.3 mph E
Humidity81%
Visibility—
Dew point55°
Mon, 1778° / 54°0
78 °
Donaldsons Crossroads, Monday, 17 August
Mostly clear. High 78°, low 54°.
Pressure30.03 inHg
Wind4.8 mph NW
Humidity47%
Visibility—
Dew point52°
Tue, 1881° / 59°0
81 °
Donaldsons Crossroads, Tuesday, 18 August
Clear. High 81°, low 59°.
Pressure30.03 inHg
Wind4.5 mph NW
Humidity46%
Visibility—
Dew point55°
Wed, 1984° / 59°0
84 °
Donaldsons Crossroads, Wednesday, 19 August
Partly cloudy. High 84°, low 59°.
Pressure30.06 inHg
Wind2.9 mph E
Humidity46%
Visibility—
Dew point58°
Thu, 2089° / 63°0
89 °
Donaldsons Crossroads, Thursday, 20 August
Mostly clear. High 89°, low 63°.
Pressure29.97 inHg
Wind8.1 mph S
Humidity43%
Visibility—
Dew point59°
Fri, 2194° / 73°0
94 °
Donaldsons Crossroads, Friday, 21 August
Mostly clear. High 94°, low 73°.
Pressure29.83 inHg
Wind8.6 mph SW
Humidity53%
Visibility—
Dew point71°
Sat, 2292° / 66°0
92 °
Donaldsons Crossroads, Saturday, 22 August
Mostly clear. High 92°, low 66°.
Pressure29.94 inHg
Wind6 mph NE
Humidity33%
Visibility—
Dew point55°
Sun, 2394° / 68°0
94 °
Donaldsons Crossroads, Sunday, 23 August
Clear. High 94°, low 68°.
Pressure29.91 inHg
Wind6.6 mph S
Humidity42%
Visibility—
Dew point64°
Mon, 2494° / 74°0.09
94 °
Donaldsons Crossroads, Monday, 24 August
Light rain. High 94°, low 74°.
Pressure29.97 inHg
Wind7.7 mph W
Humidity52%
Visibility—
Dew point71°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2580° / 61°0.09
80 °
Donaldsons Crossroads, 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 °
Donaldsons Crossroads, 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 °
Donaldsons Crossroads, 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 °
Donaldsons Crossroads, 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 °
Donaldsons Crossroads, 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 °
Donaldsons Crossroads, 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 °
Donaldsons Crossroads, 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 °
Donaldsons Crossroads, 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 °
Donaldsons Crossroads, 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 °
Donaldsons Crossroads, 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 °
Donaldsons Crossroads, 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 °
Donaldsons Crossroads, 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 °
Donaldsons Crossroads, 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 °
Donaldsons Crossroads, 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 Donaldsons Crossroads, 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 Donaldsons Crossroads, 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.