Monthly outlook for Sibleyville, PA: average high 77.7°, average low 61.4°. That is 1.1° above the climate normal for August. Precipitation is expected on 6 days (about 0.8 inches), against a normal of 7 days and 2.4 inches. The warmest day looks like 16 August (83°), the coolest 23 August (58°).
77.7°/61.4°
Average high / low
+1.1°
Above normal
6 / 7
Wet days / normal
0.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
77.9°
76.2°
+0.9°
19 August – 28 August
77.4°
75.2°
+1.2°
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 (9 mi).
Mon, 1080° / 67°0.34
80 °
Sibleyville, Monday, 10 August
Rain. High 80°, low 67°.
Pressure29.94 inHg
Wind9.8 mph SW
Humidity89%
Visibility6.2 mi
Dew point66°
Tue, 1179° / 64°0.11
79 °
Sibleyville, Tuesday, 11 August
Rain. High 79°, low 64°.
Pressure29.94 inHg
Wind7.6 mph NW
Humidity66%
Visibility6.2 mi
Dew point65°
Wed, 1275° / 63°0.07
75 °
Sibleyville, Wednesday, 12 August
Light rain. High 75°, low 63°.
Pressure29.77 inHg
Wind7.5 mph W
Humidity87%
Visibility6.2 mi
Dew point68°
Thu, 1373° / 58°0
73 °
Sibleyville, Thursday, 13 August
Overcast. High 73°, low 58°.
Pressure30.00 inHg
Wind7.6 mph N
Humidity56%
Visibility6.2 mi
Dew point54°
Fri, 1476° / 61°0
76 °
Sibleyville, Friday, 14 August
Overcast. High 76°, low 61°.
Pressure30.06 inHg
Wind9.6 mph N
Humidity55%
Visibility—
Dew point57°
Sat, 1576° / 62°0.02
76 °
Sibleyville, Saturday, 15 August
Light rain. High 76°, low 62°.
Pressure30.12 inHg
Wind8.1 mph SE
Humidity57%
Visibility—
Dew point58°
Sun, 1683° / 62°0.15
83 °
Sibleyville, Sunday, 16 August
Light rain. High 83°, low 62°.
Pressure29.74 inHg
Wind23 mph W
Humidity60%
Visibility—
Dew point66°
Mon, 1773° / 58°0
73 °
Sibleyville, Monday, 17 August
Overcast. High 73°, low 58°.
Pressure30.06 inHg
Wind7.8 mph N
Humidity52%
Visibility—
Dew point53°
Tue, 1883° / 63°0.08
83 °
Sibleyville, Tuesday, 18 August
Light rain. High 83°, low 63°.
Pressure29.85 inHg
Wind19.9 mph S
Humidity61%
Visibility—
Dew point64°
Wed, 1976° / 62°0.02
76 °
Sibleyville, Wednesday, 19 August
Light rain. High 76°, low 62°.
Pressure30.00 inHg
Wind11.6 mph NW
Humidity51%
Visibility—
Dew point55°
Thu, 2075° / 58°0
75 °
Sibleyville, Thursday, 20 August
Overcast. High 75°, low 58°.
Pressure29.94 inHg
Wind11.5 mph SW
Humidity68%
Visibility—
Dew point60°
Fri, 2178° / 63°0.04
78 °
Sibleyville, Friday, 21 August
Light rain. High 78°, low 63°.
Pressure29.85 inHg
Wind9.6 mph NW
Humidity60%
Visibility—
Dew point60°
Sat, 2277° / 59°0
77 °
Sibleyville, Saturday, 22 August
Mostly clear. High 77°, low 59°.
Pressure29.94 inHg
Wind10 mph N
Humidity48%
Visibility—
Dew point54°
Sun, 2381° / 58°0
81 °
Sibleyville, Sunday, 23 August
Clear. High 81°, low 58°.
Pressure29.97 inHg
Wind8.7 mph W
Humidity45%
Visibility—
Dew point55°
Mon, 2478° / 61°0
78 °
Sibleyville, Monday, 24 August
Partly cloudy. High 78°, low 61°.
Pressure30.00 inHg
Wind13.6 mph NW
Humidity57%
Visibility—
Dew point59°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2576° / 65°0.15
76 °
Sibleyville, 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 °
Sibleyville, 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 °
Sibleyville, 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 °
Sibleyville, 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 °
Sibleyville, 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 °
Sibleyville, 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 °
Sibleyville, 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 °
Sibleyville, 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 °
Sibleyville, 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 °
Sibleyville, 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 °
Sibleyville, 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 °
Sibleyville, 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 °
Sibleyville, 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 °
Sibleyville, 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 Sibleyville, 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 Sibleyville, 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.