Monthly outlook for Old Side, PA: average high 58.2°, average low 41.4°. That is 0.1° below the climate normal for October. Precipitation is expected on 4 days (about 2.3 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 13 October (77.4°), the coolest 18 October (27.4°).
58.2°/41.4°
Average high / low
−0.1°
Below normal
4 / 5
Wet days / normal
2.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
59.4°
59.4°
+0°
21 October – 30 October
56.1°
55.8°
+0.2°
31 October – 9 November
at normal
52.6°
—
October records over 66 years
86°8 October 2007All-time high
18.1°31 October 2002All-time low
Climate normals and records are computed from the nearest reference point — Yarnell (8 mi).
Mon, 1268° / 48°0
68 °
Old Side, Monday, 12 October
Overcast. High 68°, low 48°.
Pressure29.94 inHg
Wind8.4 mph NW
Humidity64%
Visibility6.2 mi
Dew point54°
Tue, 1377° / 54°0
77 °
Old Side, Tuesday, 13 October
Clear. High 77°, low 54°.
Pressure29.91 inHg
Wind11.1 mph SW
Humidity67%
Visibility6.2 mi
Dew point61°
Wed, 1472° / 59°0.02
72 °
Old Side, Wednesday, 14 October
Light rain. High 72°, low 59°.
Pressure29.94 inHg
Wind9.8 mph W
Humidity75%
Visibility6.2 mi
Dew point62°
Thu, 1562° / 52°0
62 °
Old Side, Thursday, 15 October
Overcast. High 62°, low 52°.
Pressure30.24 inHg
Wind4.3 mph NE
Humidity56%
Visibility6.2 mi
Dew point43°
Fri, 1665° / 46°0.94
65 °
Old Side, Friday, 16 October
Rain. High 65°, low 46°.
Pressure29.56 inHg
Wind17 mph NW
Humidity99%
Visibility—
Dew point63°
Sat, 1743° / 29°0.05
43 °
Old Side, Saturday, 17 October
Light snow. High 43°, low 29°.
Pressure29.91 inHg
Wind16.1 mph NW
Humidity77%
Visibility—
Dew point32°
Sun, 1842° / 27°0
42 °
Old Side, Sunday, 18 October
Clear. High 42°, low 27°.
Pressure30.50 inHg
Wind11.6 mph NW
Humidity43%
Visibility—
Dew point15°
Mon, 1954° / 28°0
54 °
Old Side, Monday, 19 October
Partly cloudy. High 54°, low 28°.
Pressure30.56 inHg
Wind9.4 mph SW
Humidity46%
Visibility—
Dew point23°
Tue, 2056° / 33°0
56 °
Old Side, Tuesday, 20 October
Clear. High 56°, low 33°.
Pressure30.45 inHg
Wind6.9 mph W
Humidity54%
Visibility—
Dew point31°
Wed, 2159° / 38°0
59 °
Old Side, Wednesday, 21 October
Clear. High 59°, low 38°.
Pressure30.45 inHg
Wind2.9 mph E
Humidity67%
Visibility—
Dew point40°
Thu, 2257° / 41°0
57 °
Old Side, Thursday, 22 October
Overcast. High 57°, low 41°.
Pressure30.42 inHg
Wind5.5 mph SE
Humidity66%
Visibility—
Dew point39°
Fri, 2357° / 39°0
57 °
Old Side, Friday, 23 October
Clear. High 57°, low 39°.
Pressure30.36 inHg
Wind4.6 mph SE
Humidity68%
Visibility—
Dew point40°
Sat, 2461° / 39°0
61 °
Old Side, Saturday, 24 October
Mostly clear. High 61°, low 39°.
Pressure30.15 inHg
Wind7.6 mph N
Humidity59%
Visibility—
Dew point38°
Sun, 2556° / 39°0
56 °
Old Side, Sunday, 25 October
Clear. High 56°, low 39°.
Pressure30.12 inHg
Wind6.6 mph N
Humidity59%
Visibility—
Dew point35°
Mon, 2645° / 36°0.23
45 °
Old Side, Monday, 26 October
Rain. High 45°, low 36°.
Pressure29.80 inHg
Wind6.1 mph SE
Humidity93%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2756° / 41°0.14
56 °
Old Side, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.14 in
Chance of precipitation27%
Record high77° (1963)
Record low28° (1990)
Wed, 2855° / 40°0.09
55 °
Old Side, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.09 in
Chance of precipitation40%
Record high74° (1984)
Record low26° (1976)
Thu, 2953° / 39°0.17
53 °
Old Side, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.17 in
Chance of precipitation33%
Record high69° (1971)
Record low26° (1965)
Fri, 3054° / 38°0.11
54 °
Old Side, Friday, 30 October
Climate normal for this date — 60-year average.
Average high54°
Average low38°
Average precipitation0.11 in
Chance of precipitation28%
Record high73° (2024)
Record low21° (2011)
Sat, 3154° / 39°0.09
54 °
Old Side, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.09 in
Chance of precipitation28%
Record high76° (2024)
Record low18° (2002)
Sun, 0155° / 41°0.08
55 °
Old Side, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.08 in
Chance of precipitation28%
Record high73° (1974)
Record low22° (2002)
Mon, 0255° / 40°0.13
55 °
Old Side, Monday, 2 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.13 in
Chance of precipitation33%
Record high74° (1982)
Record low25° (1993)
Tue, 0354° / 39°0.07
54 °
Old Side, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.07 in
Chance of precipitation30%
Record high72° (2003)
Record low25° (2002)
Wed, 0452° / 39°0.09
52 °
Old Side, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high52°
Average low39°
Average precipitation0.09 in
Chance of precipitation25%
Record high73° (2003)
Record low26° (1991)
Thu, 0552° / 38°0.09
52 °
Old Side, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.09 in
Chance of precipitation37%
Record high71° (2022)
Record low20° (1991)
Fri, 0652° / 38°0.06
52 °
Old Side, Friday, 6 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.06 in
Chance of precipitation28%
Record high73° (2022)
Record low26° (1991)
Sat, 0750° / 37°0.1
50 °
Old Side, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.1 in
Chance of precipitation32%
Record high68° (2020)
Record low27° (1967)
Sun, 0851° / 37°0.12
51 °
Old Side, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.12 in
Chance of precipitation23%
Record high69° (2020)
Record low25° (2019)
Mon, 0950° / 37°0.1
50 °
Old Side, Monday, 9 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.1 in
Chance of precipitation33%
Record high69° (2020)
Record low22° (2019)
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 Old Side, 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 Old Side, 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.