Monthly outlook for West Bristol, PA: average high 85.2°, average low 67.8°. That is 1.2° above the climate normal for August. Precipitation is expected on 2 days (about 0.3 inches), against a normal of 6 days and 2.1 inches. The warmest day looks like 11 August (92.6°), the coolest 15 August (60.7°).
85.2°/67.8°
Average high / low
+1.2°
Above normal
2 / 6
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
84.2°
83.9°
+0.2°
19 August – 28 August
86.9°
82.4°
+2.5°
29 August – 7 September
at normal
81.2°
—
August records over 66 years
100°9 August 2001All-time high
50.2°30 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Riverside (6 mi).
Mon, 1091° / 72°0
91 °
West Bristol, Monday, 10 August
Clear. High 91°, low 72°.
Pressure29.97 inHg
Wind7.6 mph W
Humidity30%
Visibility6.2 mi
Dew point57°
Tue, 1193° / 76°0.01
93 °
West Bristol, Tuesday, 11 August
Light rain. High 93°, low 76°.
Pressure29.85 inHg
Wind9.8 mph NW
Humidity48%
Visibility6.2 mi
Dew point65°
Wed, 1289° / 70°0
89 °
West Bristol, Wednesday, 12 August
Light rain. High 89°, low 70°.
Pressure29.83 inHg
Wind1.7 mph S
Humidity47%
Visibility6.2 mi
Dew point59°
Thu, 1388° / 74°0.02
88 °
West Bristol, Thursday, 13 August
Light rain. High 88°, low 74°.
Pressure29.80 inHg
Wind15.6 mph NW
Humidity30%
Visibility—
Dew point51°
Fri, 1480° / 66°0
80 °
West Bristol, Friday, 14 August
Overcast. High 80°, low 66°.
Pressure30.03 inHg
Wind8.4 mph SW
Humidity31%
Visibility—
Dew point45°
Sat, 1580° / 61°0
80 °
West Bristol, Saturday, 15 August
Partly cloudy. High 80°, low 61°.
Pressure30.15 inHg
Wind12.2 mph N
Humidity28%
Visibility—
Dew point40°
Sun, 1683° / 61°0
83 °
West Bristol, Sunday, 16 August
Overcast. High 83°, low 61°.
Pressure30.15 inHg
Wind5.2 mph N
Humidity27%
Visibility—
Dew point43°
Mon, 1769° / 64°0.16
69 °
West Bristol, Monday, 17 August
Light rain. High 69°, low 64°.
Pressure29.88 inHg
Wind7.5 mph NW
Humidity97%
Visibility—
Dew point67°
Tue, 1885° / 61°0
85 °
West Bristol, Tuesday, 18 August
Overcast. High 85°, low 61°.
Pressure29.94 inHg
Wind6.6 mph S
Humidity33%
Visibility—
Dew point49°
Wed, 1987° / 68°0.02
87 °
West Bristol, Wednesday, 19 August
Light rain. High 87°, low 68°.
Pressure29.85 inHg
Wind10.2 mph S
Humidity36%
Visibility—
Dew point54°
Thu, 2087° / 69°0
87 °
West Bristol, Thursday, 20 August
Overcast. High 87°, low 69°.
Pressure29.71 inHg
Wind11.4 mph W
Humidity47%
Visibility—
Dew point62°
Fri, 2185° / 63°0
85 °
West Bristol, Friday, 21 August
Partly cloudy. High 85°, low 63°.
Pressure29.85 inHg
Wind6.6 mph N
Humidity28%
Visibility—
Dew point45°
Sat, 2291° / 68°0
91 °
West Bristol, Saturday, 22 August
Clear. High 91°, low 68°.
Pressure29.94 inHg
Wind14.1 mph SW
Humidity32%
Visibility—
Dew point54°
Sun, 2389° / 74°0.06
89 °
West Bristol, Sunday, 23 August
Light rain. High 89°, low 74°.
Pressure29.85 inHg
Wind15.2 mph W
Humidity34%
Visibility—
Dew point56°
Mon, 2483° / 65°0
83 °
West Bristol, Monday, 24 August
Clear. High 83°, low 65°.
Pressure30.15 inHg
Wind7.2 mph N
Humidity25%
Visibility—
Dew point41°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2583° / 65°0.06
83 °
West Bristol, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high83°
Average low65°
Average precipitation0.06 in
Chance of precipitation13%
Record high96° (1968)
Record low54° (1987)
Wed, 2683° / 66°0.06
83 °
West Bristol, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.06 in
Chance of precipitation27%
Record high92° (1993)
Record low56° (1960)
Thu, 2784° / 67°0.15
84 °
West Bristol, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high84°
Average low67°
Average precipitation0.15 in
Chance of precipitation35%
Record high92° (2020)
Record low57° (1963)
Fri, 2883° / 68°0.2
83 °
West Bristol, Friday, 28 August
Climate normal for this date — 60-year average.
Average high83°
Average low68°
Average precipitation0.2 in
Chance of precipitation47%
Record high96° (2024)
Record low57° (1986)
Sat, 2982° / 67°0.11
82 °
West Bristol, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high82°
Average low67°
Average precipitation0.11 in
Chance of precipitation30%
Record high94° (2010)
Record low50° (1982)
Sun, 3083° / 66°0.06
83 °
West Bristol, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.06 in
Chance of precipitation30%
Record high95° (1973)
Record low50° (1986)
Mon, 3182° / 66°0.07
82 °
West Bristol, Monday, 31 August
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.07 in
Chance of precipitation18%
Record high96° (2010)
Record low52° (1976)
Tue, 0181° / 65°0.12
81 °
West Bristol, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.12 in
Chance of precipitation33%
Record high94° (2010)
Record low56° (1967)
Wed, 0281° / 65°0.11
81 °
West Bristol, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.11 in
Chance of precipitation32%
Record high95° (1980)
Record low54° (1970)
Thu, 0381° / 65°0.12
81 °
West Bristol, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.12 in
Chance of precipitation32%
Record high93° (2015)
Record low50° (1967)
Fri, 0481° / 65°0.08
81 °
West Bristol, Friday, 4 September
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.08 in
Chance of precipitation28%
Record high97° (2023)
Record low53° (2024)
Sat, 0581° / 65°0.09
81 °
West Bristol, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.09 in
Chance of precipitation23%
Record high96° (2023)
Record low54° (1997)
Sun, 0680° / 64°0.19
80 °
West Bristol, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.19 in
Chance of precipitation32%
Record high96° (2023)
Record low53° (1984)
Mon, 0781° / 64°0.09
81 °
West Bristol, Monday, 7 September
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.09 in
Chance of precipitation25%
Record high93° (2023)
Record low49° (1984)
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 West Bristol, 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 West Bristol, 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.