Monthly outlook for McKean, PA: average high 76°, average low 59.8°. That is 0.1° above the climate normal for August. Precipitation is expected on 6 days (about 1.3 inches), against a normal of 7 days and 2.4 inches. The warmest day looks like 9 August (85.1°), the coolest 22 August (51.6°).
76°/59.8°
Average high / low
+0.1°
Above normal
6 / 7
Wet days / normal
1.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
76.4°
76.2°
+0.1°
19 August – 28 August
75.2°
75.2°
-0°
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, 1078° / 70°0.17
78 °
McKean, Monday, 10 August
Rain. High 78°, low 70°.
Pressure29.94 inHg
Wind12.4 mph SW
Humidity90%
Visibility6.2 mi
Dew point68°
Tue, 1182° / 62°0.4
82 °
McKean, Tuesday, 11 August
Rain. High 82°, low 62°.
Pressure29.91 inHg
Wind9.7 mph SW
Humidity66%
Visibility6.2 mi
Dew point66°
Wed, 1276° / 65°0.11
76 °
McKean, Wednesday, 12 August
Light rain. High 76°, low 65°.
Pressure29.77 inHg
Wind11.4 mph W
Humidity75%
Visibility6.2 mi
Dew point66°
Thu, 1368° / 59°0.05
68 °
McKean, Thursday, 13 August
Light rain. High 68°, low 59°.
Pressure29.94 inHg
Wind16.1 mph NW
Humidity55%
Visibility—
Dew point50°
Fri, 1471° / 54°0
71 °
McKean, Friday, 14 August
Clear. High 71°, low 54°.
Pressure30.09 inHg
Wind10.9 mph NW
Humidity49%
Visibility—
Dew point49°
Sat, 1570° / 55°0.02
70 °
McKean, Saturday, 15 August
Light rain. High 70°, low 55°.
Pressure30.27 inHg
Wind8.7 mph N
Humidity51%
Visibility—
Dew point49°
Sun, 1675° / 55°0
75 °
McKean, Sunday, 16 August
Overcast. High 75°, low 55°.
Pressure30.18 inHg
Wind7 mph N
Humidity50%
Visibility—
Dew point53°
Mon, 1778° / 59°0
78 °
McKean, Monday, 17 August
Overcast. High 78°, low 59°.
Pressure30.03 inHg
Wind7.2 mph N
Humidity49%
Visibility—
Dew point55°
Tue, 1881° / 57°0
81 °
McKean, Tuesday, 18 August
Partly cloudy. High 81°, low 57°.
Pressure30.00 inHg
Wind5.3 mph N
Humidity44%
Visibility—
Dew point54°
Wed, 1982° / 62°0.37
82 °
McKean, Wednesday, 19 August
Rain. High 82°, low 62°.
Pressure29.77 inHg
Wind15.5 mph SW
Humidity53%
Visibility—
Dew point61°
Thu, 2070° / 60°0.17
70 °
McKean, Thursday, 20 August
Light rain. High 70°, low 60°.
Pressure29.83 inHg
Wind20.3 mph NW
Humidity78%
Visibility—
Dew point56°
Fri, 2169° / 55°0
69 °
McKean, Friday, 21 August
Partly cloudy. High 69°, low 55°.
Pressure30.03 inHg
Wind10.6 mph N
Humidity48%
Visibility—
Dew point47°
Sat, 2274° / 52°0.01
74 °
McKean, Saturday, 22 August
Light rain. High 74°, low 52°.
Pressure30.03 inHg
Wind7.9 mph S
Humidity44%
Visibility—
Dew point49°
Sun, 2384° / 64°0
84 °
McKean, Sunday, 23 August
Light rain. High 84°, low 64°.
Pressure29.83 inHg
Wind16.4 mph SW
Humidity52%
Visibility—
Dew point62°
Mon, 2472° / 60°0
72 °
McKean, Monday, 24 August
Clear. High 72°, low 60°.
Pressure30.03 inHg
Wind13.1 mph NW
Humidity57%
Visibility—
Dew point55°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2576° / 65°0.15
76 °
McKean, 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 °
McKean, 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 °
McKean, 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 °
McKean, 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 °
McKean, 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 °
McKean, 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 °
McKean, 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 °
McKean, 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 °
McKean, 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 °
McKean, 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 °
McKean, 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 °
McKean, 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 °
McKean, 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 °
McKean, 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 McKean, 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 McKean, 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.