Monthly outlook for East Allen, PA: average high 84°, average low 64.7°. That is 1.6° above the climate normal for August. Precipitation is expected on 8 days (about 1.0 inches), against a normal of 6 days and 2.1 inches. The warmest day looks like 19 August (90.8°), the coolest 20 August (58.1°).
84°/64.7°
Average high / low
+1.6°
Above normal
8 / 6
Wet days / normal
1.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
82.9°
81.9°
+0.5°
19 August – 28 August
85.8°
80.5°
+3°
29 August – 7 September
at normal
79°
—
August records over 66 years
97.7°2 August 2006All-time high
44.6°30 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Stiles (5 mi).
Mon, 1083° / 69°0.1
83 °
East Allen, Monday, 10 August
Rain. High 83°, low 69°.
Pressure29.97 inHg
Wind6.8 mph SW
Humidity52%
Visibility6.2 mi
Dew point64°
Tue, 1188° / 70°0.02
88 °
East Allen, Tuesday, 11 August
Light rain. High 88°, low 70°.
Pressure29.88 inHg
Wind5.8 mph NW
Humidity54%
Visibility6.2 mi
Dew point65°
Wed, 1280° / 65°0.28
80 °
East Allen, Wednesday, 12 August
Light rain. High 80°, low 65°.
Pressure29.74 inHg
Wind6.7 mph W
Humidity67%
Visibility6.2 mi
Dew point68°
Thu, 1381° / 62°0
81 °
East Allen, Thursday, 13 August
Overcast. High 81°, low 62°.
Pressure29.88 inHg
Wind9.9 mph NW
Humidity49%
Visibility6.2 mi
Dew point58°
Fri, 1476° / 60°0
76 °
East Allen, Friday, 14 August
Overcast. High 76°, low 60°.
Pressure30.12 inHg
Wind6.3 mph N
Humidity47%
Visibility—
Dew point53°
Sat, 1581° / 64°0
81 °
East Allen, Saturday, 15 August
Light rain. High 81°, low 64°.
Pressure30.15 inHg
Wind5.3 mph SW
Humidity51%
Visibility—
Dew point59°
Sun, 1690° / 66°0.12
90 °
East Allen, Sunday, 16 August
Light rain. High 90°, low 66°.
Pressure29.83 inHg
Wind18.8 mph S
Humidity87%
Visibility—
Dew point73°
Mon, 1780° / 63°0
80 °
East Allen, Monday, 17 August
Overcast. High 80°, low 63°.
Pressure29.94 inHg
Wind14.7 mph NW
Humidity38%
Visibility—
Dew point50°
Tue, 1882° / 60°0.01
82 °
East Allen, Tuesday, 18 August
Light rain. High 82°, low 60°.
Pressure30.06 inHg
Wind10.5 mph S
Humidity44%
Visibility—
Dew point56°
Wed, 1991° / 65°0.27
91 °
East Allen, Wednesday, 19 August
Rain. High 91°, low 65°.
Pressure29.88 inHg
Wind12.7 mph W
Humidity44%
Visibility—
Dew point61°
Thu, 2086° / 58°0
86 °
East Allen, Thursday, 20 August
Overcast. High 86°, low 58°.
Pressure29.94 inHg
Wind5.3 mph SW
Humidity37%
Visibility—
Dew point53°
Fri, 2186° / 67°0.04
86 °
East Allen, Friday, 21 August
Light rain. High 86°, low 67°.
Pressure29.74 inHg
Wind13.3 mph NW
Humidity50%
Visibility—
Dew point63°
Sat, 2280° / 66°0.06
80 °
East Allen, Saturday, 22 August
Light rain. High 80°, low 66°.
Pressure29.91 inHg
Wind7 mph E
Humidity57%
Visibility—
Dew point62°
Sun, 2385° / 63°0.04
85 °
East Allen, Sunday, 23 August
Light rain. High 85°, low 63°.
Pressure30.00 inHg
Wind10.5 mph SE
Humidity48%
Visibility—
Dew point60°
Mon, 2487° / 68°0.04
87 °
East Allen, Monday, 24 August
Light rain. High 87°, low 68°.
Pressure29.94 inHg
Wind9.5 mph W
Humidity50%
Visibility—
Dew point64°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2581° / 62°0.07
81 °
East Allen, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high81°
Average low62°
Average precipitation0.07 in
Chance of precipitation27%
Record high94° (1968)
Record low49° (1971)
Wed, 2682° / 62°0.06
82 °
East Allen, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high82°
Average low62°
Average precipitation0.06 in
Chance of precipitation20%
Record high92° (1993)
Record low50° (1977)
Thu, 2782° / 63°0.19
82 °
East Allen, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high82°
Average low63°
Average precipitation0.19 in
Chance of precipitation33%
Record high94° (2020)
Record low52° (1963)
Fri, 2881° / 64°0.19
81 °
East Allen, Friday, 28 August
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.19 in
Chance of precipitation40%
Record high93° (1993)
Record low51° (1968)
Sat, 2980° / 64°0.14
80 °
East Allen, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.14 in
Chance of precipitation37%
Record high92° (2010)
Record low45° (1982)
Sun, 3080° / 62°0.05
80 °
East Allen, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high80°
Average low62°
Average precipitation0.05 in
Chance of precipitation27%
Record high92° (1991)
Record low45° (1986)
Mon, 3180° / 62°0.06
80 °
East Allen, Monday, 31 August
Climate normal for this date — 60-year average.
Average high80°
Average low62°
Average precipitation0.06 in
Chance of precipitation20%
Record high93° (2010)
Record low46° (1986)
Tue, 0179° / 61°0.15
79 °
East Allen, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high79°
Average low61°
Average precipitation0.15 in
Chance of precipitation30%
Record high93° (2010)
Record low50° (1967)
Wed, 0279° / 61°0.12
79 °
East Allen, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high79°
Average low61°
Average precipitation0.12 in
Chance of precipitation33%
Record high95° (2010)
Record low47° (1970)
Thu, 0379° / 61°0.14
79 °
East Allen, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high79°
Average low61°
Average precipitation0.14 in
Chance of precipitation28%
Record high92° (2015)
Record low45° (1967)
Fri, 0479° / 61°0.13
79 °
East Allen, Friday, 4 September
Climate normal for this date — 60-year average.
Average high79°
Average low61°
Average precipitation0.13 in
Chance of precipitation22%
Record high94° (2023)
Record low48° (1987)
Sat, 0578° / 61°0.07
78 °
East Allen, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.07 in
Chance of precipitation25%
Record high94° (2023)
Record low48° (1994)
Sun, 0678° / 60°0.23
78 °
East Allen, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high78°
Average low60°
Average precipitation0.23 in
Chance of precipitation30%
Record high93° (2023)
Record low46° (1984)
Mon, 0778° / 60°0.13
78 °
East Allen, Monday, 7 September
Climate normal for this date — 60-year average.
Average high78°
Average low60°
Average precipitation0.13 in
Chance of precipitation25%
Record high91° (2015)
Record low42° (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 East Allen, 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 East Allen, 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.