Monthly outlook for Ercildoun, PA: average high 78.1°, average low 63.1°. That is 2° below the climate normal for August. Precipitation is expected on 6 days (about 1.8 inches), against a normal of 6 days and 2.1 inches. The warmest day looks like 9 August (86.4°), the coolest 22 August (53.9°).
78.1°/63.1°
Average high / low
−2°
Below normal
6 / 6
Wet days / normal
1.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
80.5°
82.5°
-1.1°
18 August – 27 August
74.2°
81°
-3.8°
28 August – 6 September
at normal
80.1°
—
August records over 66 years
97.2°9 August 2001All-time high
48.4°30 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Lincoln University (11 mi).
Sun, 0986° / 71°0
86 °
Ercildoun, Sunday, 9 August
Partly cloudy. High 86°, low 71°.
Pressure30.03 inHg
Wind9.4 mph W
Humidity63%
Visibility6.2 mi
Dew point70°
Mon, 1084° / 71°0.02
84 °
Ercildoun, Monday, 10 August
Light rain. High 84°, low 71°.
Pressure30.00 inHg
Wind7.9 mph NW
Humidity59%
Visibility6.2 mi
Dew point67°
Tue, 1184° / 69°0.19
84 °
Ercildoun, Tuesday, 11 August
Rain. High 84°, low 69°.
Pressure29.91 inHg
Wind5.8 mph W
Humidity67%
Visibility6.2 mi
Dew point71°
Wed, 1284° / 69°0.04
84 °
Ercildoun, Wednesday, 12 August
Light rain. High 84°, low 69°.
Pressure29.77 inHg
Wind12.5 mph W
Humidity77%
Visibility6.2 mi
Dew point69°
Thu, 1380° / 63°0
80 °
Ercildoun, Thursday, 13 August
Mostly clear. High 80°, low 63°.
Pressure29.83 inHg
Wind13 mph NW
Humidity48%
Visibility—
Dew point57°
Fri, 1475° / 57°0
75 °
Ercildoun, Friday, 14 August
Mostly clear. High 75°, low 57°.
Pressure30.06 inHg
Wind10.5 mph W
Humidity47%
Visibility—
Dew point50°
Sat, 1577° / 58°0
77 °
Ercildoun, Saturday, 15 August
Clear. High 77°, low 58°.
Pressure30.15 inHg
Wind12.8 mph NW
Humidity46%
Visibility—
Dew point52°
Sun, 1676° / 57°0
76 °
Ercildoun, Sunday, 16 August
Overcast. High 76°, low 57°.
Pressure30.18 inHg
Wind5.7 mph W
Humidity48%
Visibility—
Dew point53°
Mon, 1774° / 61°0.16
74 °
Ercildoun, Monday, 17 August
Light rain. High 74°, low 61°.
Pressure30.09 inHg
Wind9.7 mph S
Humidity72%
Visibility—
Dew point61°
Tue, 1868° / 64°0.27
68 °
Ercildoun, Tuesday, 18 August
Light rain. High 68°, low 64°.
Pressure30.06 inHg
Wind9.4 mph SE
Humidity96%
Visibility—
Dew point64°
Wed, 1975° / 64°0.04
75 °
Ercildoun, Wednesday, 19 August
Light rain. High 75°, low 64°.
Pressure29.94 inHg
Wind12.4 mph S
Humidity82%
Visibility—
Dew point65°
Thu, 2074° / 64°0.86
74 °
Ercildoun, Thursday, 20 August
Rain. High 74°, low 64°.
Pressure29.71 inHg
Wind15.6 mph NW
Humidity62%
Visibility—
Dew point59°
Fri, 2175° / 55°0
75 °
Ercildoun, Friday, 21 August
Clear. High 75°, low 55°.
Pressure29.88 inHg
Wind14.7 mph NW
Humidity47%
Visibility—
Dew point50°
Sat, 2273° / 54°0
73 °
Ercildoun, Saturday, 22 August
Mostly clear. High 73°, low 54°.
Pressure30.09 inHg
Wind7.2 mph W
Humidity46%
Visibility—
Dew point49°
Sun, 2380° / 62°0.01
80 °
Ercildoun, Sunday, 23 August
Light rain. High 80°, low 62°.
Pressure29.97 inHg
Wind14.5 mph S
Humidity64%
Visibility—
Dew point65°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2481° / 64°0.07
81 °
Ercildoun, Monday, 24 August
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.07 in
Chance of precipitation23%
Record high91° (1998)
Record low54° (1971)
Tue, 2582° / 65°0.06
82 °
Ercildoun, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.06 in
Chance of precipitation15%
Record high94° (1968)
Record low55° (1987)
Wed, 2682° / 65°0.07
82 °
Ercildoun, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.07 in
Chance of precipitation20%
Record high92° (1975)
Record low55° (1963)
Thu, 2782° / 66°0.18
82 °
Ercildoun, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.18 in
Chance of precipitation37%
Record high91° (1983)
Record low56° (2025)
Fri, 2882° / 67°0.19
82 °
Ercildoun, Friday, 28 August
Climate normal for this date — 60-year average.
Average high82°
Average low67°
Average precipitation0.19 in
Chance of precipitation45%
Record high94° (1973)
Record low55° (1968)
Sat, 2981° / 66°0.1
81 °
Ercildoun, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high81°
Average low66°
Average precipitation0.1 in
Chance of precipitation25%
Record high93° (1973)
Record low49° (1982)
Sun, 3081° / 65°0.07
81 °
Ercildoun, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.07 in
Chance of precipitation28%
Record high93° (1973)
Record low48° (1986)
Mon, 3181° / 65°0.08
81 °
Ercildoun, Monday, 31 August
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.08 in
Chance of precipitation25%
Record high94° (2010)
Record low51° (1986)
Tue, 0180° / 64°0.14
80 °
Ercildoun, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.14 in
Chance of precipitation20%
Record high93° (2010)
Record low53° (1967)
Wed, 0279° / 64°0.1
79 °
Ercildoun, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high79°
Average low64°
Average precipitation0.1 in
Chance of precipitation35%
Record high93° (1980)
Record low53° (1967)
Thu, 0380° / 64°0.11
80 °
Ercildoun, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.11 in
Chance of precipitation30%
Record high92° (2015)
Record low49° (1967)
Fri, 0480° / 64°0.09
80 °
Ercildoun, Friday, 4 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.09 in
Chance of precipitation28%
Record high94° (2023)
Record low52° (1997)
Sat, 0579° / 64°0.11
79 °
Ercildoun, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high79°
Average low64°
Average precipitation0.11 in
Chance of precipitation28%
Record high94° (2023)
Record low53° (1997)
Sun, 0679° / 63°0.23
79 °
Ercildoun, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.23 in
Chance of precipitation33%
Record high94° (2023)
Record low51° (1984)
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 Ercildoun, 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 Ercildoun, 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.