Monthly outlook for Olde West Chester, OH: average high 83.3°, average low 64°. That is 0.6° above the climate normal for August. Precipitation is expected on 7 days (about 2.0 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 10 August (94.6°), the coolest 24 August (57.6°).
83.3°/64°
Average high / low
+0.6°
Above normal
7 / 5
Wet days / normal
2.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
84.9°
82.4°
+1.4°
19 August – 28 August
80.6°
82.3°
-0.9°
29 August – 7 September
at normal
80.6°
—
August records over 66 years
98.2°17 August 1988All-time high
46.9°29 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Lebanon (12 mi).
Mon, 1095° / 72°0.06
95 °
Olde West Chester, Monday, 10 August
Light rain. High 95°, low 72°.
Pressure30.03 inHg
Wind9.9 mph S
Humidity61%
Visibility6.2 mi
Dew point71°
Tue, 1192° / 66°1.1
92 °
Olde West Chester, Tuesday, 11 August
Heavy rain. High 92°, low 66°.
Pressure30.00 inHg
Wind9.8 mph S
Humidity96%
Visibility6.2 mi
Dew point71°
Wed, 1288° / 66°0.1
88 °
Olde West Chester, Wednesday, 12 August
Light rain. High 88°, low 66°.
Pressure29.83 inHg
Wind9.9 mph W
Humidity72%
Visibility6.2 mi
Dew point73°
Thu, 1381° / 66°0.05
81 °
Olde West Chester, Thursday, 13 August
Light rain. High 81°, low 66°.
Pressure29.97 inHg
Wind7.9 mph SE
Humidity62%
Visibility—
Dew point61°
Fri, 1476° / 65°0.12
76 °
Olde West Chester, Friday, 14 August
Light rain. High 76°, low 65°.
Pressure30.09 inHg
Wind7.8 mph NE
Humidity91%
Visibility—
Dew point64°
Sat, 1578° / 60°0
78 °
Olde West Chester, Saturday, 15 August
Overcast. High 78°, low 60°.
Pressure30.24 inHg
Wind8.6 mph E
Humidity45%
Visibility—
Dew point52°
Sun, 1688° / 62°0.01
88 °
Olde West Chester, Sunday, 16 August
Light rain. High 88°, low 62°.
Pressure29.94 inHg
Wind9.6 mph NW
Humidity54%
Visibility—
Dew point66°
Mon, 1777° / 65°0
77 °
Olde West Chester, Monday, 17 August
Overcast. High 77°, low 65°.
Pressure30.03 inHg
Wind8.5 mph N
Humidity57%
Visibility—
Dew point60°
Tue, 1883° / 62°0
83 °
Olde West Chester, Tuesday, 18 August
Mostly clear. High 83°, low 62°.
Pressure29.94 inHg
Wind4 mph SE
Humidity47%
Visibility—
Dew point57°
Wed, 1987° / 66°0.41
87 °
Olde West Chester, Wednesday, 19 August
Rain. High 87°, low 66°.
Pressure29.74 inHg
Wind12.5 mph NW
Humidity58%
Visibility—
Dew point67°
Thu, 2075° / 61°0
75 °
Olde West Chester, Thursday, 20 August
Mostly clear. High 75°, low 61°.
Pressure29.91 inHg
Wind9.8 mph N
Humidity54%
Visibility—
Dew point56°
Fri, 2182° / 58°0
82 °
Olde West Chester, Friday, 21 August
Clear. High 82°, low 58°.
Pressure29.91 inHg
Wind7.1 mph S
Humidity50%
Visibility—
Dew point57°
Sat, 2286° / 65°0.14
86 °
Olde West Chester, Saturday, 22 August
Light rain. High 86°, low 65°.
Pressure29.80 inHg
Wind11.9 mph SW
Humidity55%
Visibility—
Dew point65°
Sun, 2376° / 61°0
76 °
Olde West Chester, Sunday, 23 August
Mostly clear. High 76°, low 61°.
Pressure30.09 inHg
Wind9.9 mph N
Humidity51%
Visibility—
Dew point55°
Mon, 2478° / 58°0
78 °
Olde West Chester, Monday, 24 August
Clear. High 78°, low 58°.
Pressure30.18 inHg
Wind7.1 mph NE
Humidity45%
Visibility—
Dew point52°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2582° / 65°0.07
82 °
Olde West Chester, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.07 in
Chance of precipitation30%
Record high92° (1998)
Record low55° (1984)
Wed, 2683° / 65°0.07
83 °
Olde West Chester, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high83°
Average low65°
Average precipitation0.07 in
Chance of precipitation28%
Record high92° (1983)
Record low52° (2025)
Thu, 2783° / 66°0.07
83 °
Olde West Chester, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.07 in
Chance of precipitation32%
Record high93° (2024)
Record low51° (2025)
Fri, 2883° / 66°0.14
83 °
Olde West Chester, Friday, 28 August
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.14 in
Chance of precipitation37%
Record high92° (1990)
Record low53° (2025)
Sat, 2982° / 65°0.11
82 °
Olde West Chester, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.11 in
Chance of precipitation40%
Record high93° (2007)
Record low47° (1986)
Sun, 3081° / 65°0.12
81 °
Olde West Chester, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.12 in
Chance of precipitation32%
Record high95° (2024)
Record low51° (1986)
Mon, 3181° / 64°0.08
81 °
Olde West Chester, Monday, 31 August
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.08 in
Chance of precipitation33%
Record high91° (1995)
Record low52° (2009)
Tue, 0181° / 64°0.07
81 °
Olde West Chester, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.07 in
Chance of precipitation28%
Record high93° (2011)
Record low51° (1967)
Wed, 0281° / 64°0.09
81 °
Olde West Chester, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.09 in
Chance of precipitation28%
Record high94° (2011)
Record low50° (1965)
Thu, 0380° / 64°0.14
80 °
Olde West Chester, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.14 in
Chance of precipitation28%
Record high94° (2011)
Record low52° (1967)
Fri, 0480° / 64°0.06
80 °
Olde West Chester, Friday, 4 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.06 in
Chance of precipitation22%
Record high90° (1973)
Record low50° (1997)
Sat, 0580° / 63°0.07
80 °
Olde West Chester, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.07 in
Chance of precipitation23%
Record high93° (2007)
Record low49° (1997)
Sun, 0680° / 62°0.04
80 °
Olde West Chester, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high80°
Average low62°
Average precipitation0.04 in
Chance of precipitation15%
Record high94° (1998)
Record low47° (1988)
Mon, 0779° / 63°0.04
79 °
Olde West Chester, Monday, 7 September
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.04 in
Chance of precipitation17%
Record high92° (2002)
Record low47° (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 Olde West Chester, OH 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 Olde West Chester, OH 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.