Monthly outlook for Swanville, PA: average high 76.8°, average low 65.4°. That is 0.6° above the climate normal for August. Precipitation is expected on 5 days (about 0.7 inches), against a normal of 7 days and 2.4 inches. The warmest day looks like 20 August (86.8°), the coolest 16 August (57.6°).
76.8°/65.4°
Average high / low
+0.6°
Above normal
5 / 7
Wet days / normal
0.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
74.5°
76.2°
-0.9°
19 August – 28 August
80.7°
75.2°
+3.1°
29 August – 7 September
at normal
74°
—
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 (7 mi).
Mon, 1081° / 69°0.33
81 °
Swanville, Monday, 10 August
Rain. High 81°, low 69°.
Pressure29.94 inHg
Wind17.1 mph SW
Humidity78%
Visibility6.2 mi
Dew point69°
Tue, 1178° / 68°0.07
78 °
Swanville, Tuesday, 11 August
Light rain. High 78°, low 68°.
Pressure29.94 inHg
Wind7.1 mph NW
Humidity65%
Visibility6.2 mi
Dew point63°
Wed, 1276° / 66°0.07
76 °
Swanville, Wednesday, 12 August
Light rain. High 76°, low 66°.
Pressure29.77 inHg
Wind11.2 mph W
Humidity82%
Visibility6.2 mi
Dew point68°
Thu, 1371° / 64°0.15
71 °
Swanville, Thursday, 13 August
Light rain. High 71°, low 64°.
Pressure29.94 inHg
Wind18.7 mph NW
Humidity51%
Visibility—
Dew point51°
Fri, 1470° / 61°0.01
70 °
Swanville, Friday, 14 August
Light rain. High 70°, low 61°.
Pressure30.12 inHg
Wind14.3 mph N
Humidity55%
Visibility—
Dew point51°
Sat, 1568° / 58°0
68 °
Swanville, Saturday, 15 August
Partly cloudy. High 68°, low 58°.
Pressure30.30 inHg
Wind11.2 mph N
Humidity51%
Visibility—
Dew point48°
Sun, 1671° / 58°0
71 °
Swanville, Sunday, 16 August
Overcast. High 71°, low 58°.
Pressure30.15 inHg
Wind8.1 mph S
Humidity56%
Visibility—
Dew point52°
Mon, 1773° / 61°0
73 °
Swanville, Monday, 17 August
Overcast. High 73°, low 61°.
Pressure30.03 inHg
Wind9 mph N
Humidity57%
Visibility—
Dew point56°
Tue, 1873° / 63°0
73 °
Swanville, Tuesday, 18 August
Mostly clear. High 73°, low 63°.
Pressure30.06 inHg
Wind8.9 mph N
Humidity64%
Visibility—
Dew point59°
Wed, 1979° / 62°0
79 °
Swanville, Wednesday, 19 August
Partly cloudy. High 79°, low 62°.
Pressure30.06 inHg
Wind7.7 mph SE
Humidity50%
Visibility—
Dew point56°
Thu, 2087° / 68°0
87 °
Swanville, Thursday, 20 August
Partly cloudy. High 87°, low 68°.
Pressure29.91 inHg
Wind14.3 mph SW
Humidity52%
Visibility—
Dew point63°
Fri, 2183° / 73°0.01
83 °
Swanville, Friday, 21 August
Light rain. High 83°, low 73°.
Pressure29.83 inHg
Wind12.1 mph S
Humidity77%
Visibility—
Dew point74°
Sat, 2279° / 66°0
79 °
Swanville, Saturday, 22 August
Clear. High 79°, low 66°.
Pressure30.00 inHg
Wind11.5 mph NE
Humidity58%
Visibility—
Dew point60°
Sun, 2385° / 72°0.02
85 °
Swanville, Sunday, 23 August
Light rain. High 85°, low 72°.
Pressure29.91 inHg
Wind13.7 mph S
Humidity58%
Visibility—
Dew point67°
Mon, 2472° / 69°0.06
72 °
Swanville, Monday, 24 August
Light rain. High 72°, low 69°.
Pressure30.06 inHg
Wind18 mph NE
Humidity92%
Visibility—
Dew point67°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2576° / 65°0.15
76 °
Swanville, 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 °
Swanville, 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 °
Swanville, 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 °
Swanville, 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 °
Swanville, 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 °
Swanville, 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 °
Swanville, 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 °
Swanville, 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 °
Swanville, 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 °
Swanville, 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 °
Swanville, 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 °
Swanville, 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 °
Swanville, 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)
Mon, 0773° / 63°0.15
73 °
Swanville, Monday, 7 September
Climate normal for this date — 60-year average.
Average high73°
Average low63°
Average precipitation0.15 in
Chance of precipitation42%
Record high84° (1960)
Record low51° (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 Swanville, 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 Swanville, 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.