Monthly outlook for Hornby, PA: average high 73.7°, average low 59.9°. That is 1.2° below the climate normal for August. Precipitation is expected on 6 days (about 1.6 inches), against a normal of 7 days and 2.4 inches. The warmest day looks like 9 August (83.2°), the coolest 22 August (51.5°).
73.7°/59.9°
Average high / low
−1.2°
Below normal
6 / 7
Wet days / normal
1.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
73.8°
76.4°
-1.5°
18 August – 27 August
73.7°
75.2°
-0.8°
28 August – 6 September
at normal
74.3°
—
August records over 66 years
91.9°3 August 1988All-time high
50.4°30 August 1965All-time low
Climate normals and records are computed from the nearest reference point — Erie (11 mi).
Sun, 0983° / 66°0
83 °
Hornby, Sunday, 9 August
Clear. High 83°, low 66°.
Pressure30.06 inHg
Wind0.3 mph S
Humidity56%
Visibility6.2 mi
Dew point59°
Mon, 1075° / 66°0.17
75 °
Hornby, Monday, 10 August
Rain. High 75°, low 66°.
Pressure29.97 inHg
Wind14.2 mph SW
Humidity88%
Visibility6.2 mi
Dew point67°
Tue, 1178° / 62°0.55
78 °
Hornby, Tuesday, 11 August
Rain. High 78°, low 62°.
Pressure29.91 inHg
Wind8.6 mph SW
Humidity73%
Visibility6.2 mi
Dew point67°
Wed, 1273° / 64°0.11
73 °
Hornby, Wednesday, 12 August
Light rain. High 73°, low 64°.
Pressure29.77 inHg
Wind9.5 mph W
Humidity79%
Visibility6.2 mi
Dew point66°
Thu, 1366° / 58°0.03
66 °
Hornby, Thursday, 13 August
Light rain. High 66°, low 58°.
Pressure29.94 inHg
Wind17.4 mph NW
Humidity58%
Visibility—
Dew point50°
Fri, 1469° / 55°0.01
69 °
Hornby, Friday, 14 August
Light rain. High 69°, low 55°.
Pressure30.06 inHg
Wind12 mph W
Humidity51%
Visibility—
Dew point48°
Sat, 1567° / 55°0.03
67 °
Hornby, Saturday, 15 August
Light rain. High 67°, low 55°.
Pressure30.27 inHg
Wind7.8 mph NW
Humidity52%
Visibility—
Dew point48°
Sun, 1671° / 55°0
71 °
Hornby, Sunday, 16 August
Overcast. High 71°, low 55°.
Pressure30.18 inHg
Wind6.2 mph S
Humidity55%
Visibility—
Dew point52°
Mon, 1774° / 59°0
74 °
Hornby, Monday, 17 August
Overcast. High 74°, low 59°.
Pressure30.03 inHg
Wind6 mph N
Humidity51%
Visibility—
Dew point53°
Tue, 1876° / 57°0
76 °
Hornby, Tuesday, 18 August
Partly cloudy. High 76°, low 57°.
Pressure30.00 inHg
Wind5.5 mph SE
Humidity50%
Visibility—
Dew point55°
Wed, 1979° / 62°0.35
79 °
Hornby, Wednesday, 19 August
Rain. High 79°, low 62°.
Pressure29.77 inHg
Wind15.3 mph SW
Humidity58%
Visibility—
Dew point61°
Thu, 2070° / 59°0.2
70 °
Hornby, Thursday, 20 August
Light rain. High 70°, low 59°.
Pressure29.80 inHg
Wind19.8 mph NW
Humidity78%
Visibility—
Dew point55°
Fri, 2166° / 57°0
66 °
Hornby, Friday, 21 August
Clear. High 66°, low 57°.
Pressure30.03 inHg
Wind10.5 mph N
Humidity50%
Visibility—
Dew point46°
Sat, 2271° / 52°0
71 °
Hornby, Saturday, 22 August
Overcast. High 71°, low 52°.
Pressure30.03 inHg
Wind8 mph S
Humidity47%
Visibility—
Dew point47°
Sun, 2380° / 64°0
80 °
Hornby, Sunday, 23 August
Light rain. High 80°, low 64°.
Pressure29.85 inHg
Wind19.5 mph SW
Humidity58%
Visibility—
Dew point61°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2475° / 65°0.11
75 °
Hornby, Monday, 24 August
Climate normal for this date — 60-year average.
Average high75°
Average low65°
Average precipitation0.11 in
Chance of precipitation35%
Record high86° (2007)
Record low52° (1971)
Tue, 2576° / 65°0.15
76 °
Hornby, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high76°
Average low65°
Average precipitation0.15 in
Chance of precipitation38%
Record high84° (1962)
Record low56° (1963)
Wed, 2676° / 65°0.11
76 °
Hornby, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high76°
Average low65°
Average precipitation0.11 in
Chance of precipitation35%
Record high85° (1993)
Record low56° (1963)
Thu, 2776° / 66°0.18
76 °
Hornby, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high76°
Average low66°
Average precipitation0.18 in
Chance of precipitation47%
Record high87° (2024)
Record low56° (1969)
Fri, 2876° / 66°0.18
76 °
Hornby, Friday, 28 August
Climate normal for this date — 60-year average.
Average high76°
Average low66°
Average precipitation0.18 in
Chance of precipitation48%
Record high86° (2018)
Record low53° (1986)
Sat, 2975° / 65°0.16
75 °
Hornby, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high75°
Average low65°
Average precipitation0.16 in
Chance of precipitation37%
Record high85° (2018)
Record low52° (1982)
Sun, 3075° / 65°0.12
75 °
Hornby, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high75°
Average low65°
Average precipitation0.12 in
Chance of precipitation42%
Record high87° (1991)
Record low50° (1965)
Mon, 3174° / 64°0.17
74 °
Hornby, Monday, 31 August
Climate normal for this date — 60-year average.
Average high74°
Average low64°
Average precipitation0.17 in
Chance of precipitation35%
Record high87° (1962)
Record low54° (2025)
Tue, 0174° / 64°0.08
74 °
Hornby, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high74°
Average low64°
Average precipitation0.08 in
Chance of precipitation25%
Record high86° (1973)
Record low55° (2023)
Wed, 0275° / 64°0.18
75 °
Hornby, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high75°
Average low64°
Average precipitation0.18 in
Chance of precipitation45%
Record high87° (2011)
Record low55° (2017)
Thu, 0374° / 64°0.14
74 °
Hornby, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high74°
Average low64°
Average precipitation0.14 in
Chance of precipitation40%
Record high88° (2011)
Record low53° (2024)
Fri, 0474° / 64°0.15
74 °
Hornby, Friday, 4 September
Climate normal for this date — 60-year average.
Average high74°
Average low64°
Average precipitation0.15 in
Chance of precipitation38%
Record high87° (1973)
Record low54° (1987)
Sat, 0573° / 64°0.11
73 °
Hornby, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high73°
Average low64°
Average precipitation0.11 in
Chance of precipitation38%
Record high87° (2018)
Record low53° (1974)
Sun, 0673° / 63°0.09
73 °
Hornby, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high73°
Average low63°
Average precipitation0.09 in
Chance of precipitation40%
Record high88° (2007)
Record low51° (2000)
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 Hornby, 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 Hornby, 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.