Monthly outlook for Port Perry, PA: average high 61.8°, average low 46.3°. That is 2.2° above the climate normal for October. Precipitation is expected on 3 days (about 1.7 inches), against a normal of 6 days and 1.8 inches. The warmest day looks like 31 October (68.6°), the coolest 22 October (34.4°).
61.8°/46.3°
Average high / low
+2.2°
Above normal
3 / 6
Wet days / normal
1.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
22 October – 31 October
64.7°
58.6°
+3.4°
1 November – 10 November
57°
55.3°
+0.9°
11 November – 20 November
at normal
49.8°
—
October records over 66 years
88.5°1 October 2019All-time high
25.5°20 October 1972All-time low
Climate normals and records are computed from the nearest reference point — Turtle Creek (2 mi).
Fri, 2364° / 39°0
64 °
Port Perry, Friday, 23 October
Mostly clear. High 64°, low 39°.
Pressure30.36 inHg
Wind3.7 mph NE
Humidity66%
Visibility6.2 mi
Dew point47°
Sat, 2465° / 37°0
65 °
Port Perry, Saturday, 24 October
Clear. High 65°, low 37°.
Pressure30.47 inHg
Wind1.3 mph SE
Humidity60%
Visibility6.2 mi
Dew point43°
Sun, 2563° / 41°0
63 °
Port Perry, Sunday, 25 October
Clear. High 63°, low 41°.
Pressure30.50 inHg
Wind1.6 mph S
Humidity58%
Visibility6.2 mi
Dew point43°
Mon, 2665° / 42°0
65 °
Port Perry, Monday, 26 October
Mostly clear. High 65°, low 42°.
Pressure30.39 inHg
Wind1.9 mph SW
Humidity67%
Visibility6.2 mi
Dew point47°
Tue, 2760° / 45°0
60 °
Port Perry, Tuesday, 27 October
Partly cloudy. High 60°, low 45°.
Pressure30.36 inHg
Wind3.8 mph N
Humidity50%
Visibility—
Dew point39°
Wed, 2864° / 46°0
64 °
Port Perry, Wednesday, 28 October
Overcast. High 64°, low 46°.
Pressure30.27 inHg
Wind5.8 mph SE
Humidity61%
Visibility—
Dew point47°
Thu, 2968° / 48°0
68 °
Port Perry, Thursday, 29 October
Clear. High 68°, low 48°.
Pressure30.27 inHg
Wind6.1 mph S
Humidity50%
Visibility—
Dew point46°
Fri, 3064° / 50°0
64 °
Port Perry, Friday, 30 October
Overcast. High 64°, low 50°.
Pressure30.18 inHg
Wind7 mph SW
Humidity56%
Visibility—
Dew point46°
Sat, 3169° / 53°0
69 °
Port Perry, Saturday, 31 October
Overcast. High 69°, low 53°.
Pressure30.18 inHg
Wind6.1 mph SE
Humidity53%
Visibility—
Dew point49°
Sun, 0160° / 56°0.37
60 °
Port Perry, Sunday, 1 November
Rain. High 60°, low 56°.
Pressure30.09 inHg
Wind8.3 mph S
Humidity95%
Visibility—
Dew point57°
Mon, 0260° / 57°0.64
60 °
Port Perry, Monday, 2 November
Rain. High 60°, low 57°.
Pressure30.03 inHg
Wind8.8 mph NE
Humidity93%
Visibility—
Dew point56°
Tue, 0361° / 55°0.03
61 °
Port Perry, Tuesday, 3 November
Light rain. High 61°, low 55°.
Pressure30.03 inHg
Wind4.6 mph W
Humidity93%
Visibility—
Dew point58°
Wed, 0455° / 52°0.59
55 °
Port Perry, Wednesday, 4 November
Rain. High 55°, low 52°.
Pressure29.94 inHg
Wind6 mph E
Humidity94%
Visibility—
Dew point53°
Thu, 0551° / 43°0.04
51 °
Port Perry, Thursday, 5 November
Light rain. High 51°, low 43°.
Pressure29.91 inHg
Wind13.6 mph W
Humidity66%
Visibility—
Dew point38°
Fri, 0655° / 42°0
55 °
Port Perry, Friday, 6 November
Light rain. High 55°, low 42°.
Pressure29.74 inHg
Wind13.1 mph W
Humidity60%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 0753° / 39°0.13
53 °
Port Perry, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.13 in
Chance of precipitation37%
Record high72° (1996)
Record low27° (1967)
Sun, 0853° / 38°0.11
53 °
Port Perry, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.11 in
Chance of precipitation28%
Record high73° (2020)
Record low25° (1967)
Mon, 0954° / 39°0.11
54 °
Port Perry, Monday, 9 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.11 in
Chance of precipitation35%
Record high73° (1975)
Record low23° (1976)
Tue, 1054° / 39°0.17
54 °
Port Perry, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.17 in
Chance of precipitation40%
Record high76° (2020)
Record low22° (2017)
Wed, 1152° / 38°0.16
52 °
Port Perry, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.16 in
Chance of precipitation35%
Record high68° (1964)
Record low20° (2017)
Thu, 1251° / 37°0.14
51 °
Port Perry, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.14 in
Chance of precipitation40%
Record high68° (1964)
Record low22° (2019)
Fri, 1349° / 35°0.06
49 °
Port Perry, Friday, 13 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.06 in
Chance of precipitation37%
Record high68° (1989)
Record low9° (2019)
Sat, 1450° / 36°0.11
50 °
Port Perry, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.11 in
Chance of precipitation28%
Record high69° (2011)
Record low16° (2019)
Sun, 1551° / 36°0.14
51 °
Port Perry, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.14 in
Chance of precipitation48%
Record high69° (2005)
Record low21° (1996)
Mon, 1650° / 36°0.14
50 °
Port Perry, Monday, 16 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.14 in
Chance of precipitation40%
Record high69° (1988)
Record low21° (1967)
Tue, 1749° / 35°0.12
49 °
Port Perry, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.12 in
Chance of precipitation35%
Record high66° (2021)
Record low21° (2014)
Wed, 1849° / 35°0.08
49 °
Port Perry, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.08 in
Chance of precipitation33%
Record high69° (2016)
Record low16° (2014)
Thu, 1950° / 36°0.14
50 °
Port Perry, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.14 in
Chance of precipitation37%
Record high71° (1985)
Record low15° (2014)
Fri, 2049° / 36°0.11
49 °
Port Perry, Friday, 20 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.11 in
Chance of precipitation43%
Record high71° (1991)
Record low18° (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 Port Perry, 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 Port Perry, 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.