Monthly outlook for Port Perry, PA: average high 60.8°, average low 44.2°. That is 2.3° above the climate normal for October. Precipitation is expected on 2 days (about 0.6 inches), against a normal of 6 days and 1.9 inches. The warmest day looks like 26 October (68.3°), the coolest 25 October (35.5°).
60.8°/44.2°
Average high / low
+2.3°
Above normal
2 / 6
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
25 October – 3 November
63.3°
58°
+3°
4 November – 13 November
56.6°
53.1°
+1.9°
14 November – 23 November
at normal
49°
—
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).
Mon, 2668° / 38°0
68 °
Port Perry, Monday, 26 October
Clear. High 68°, low 38°.
Pressure30.36 inHg
Wind2.5 mph SW
Humidity64%
Visibility6.2 mi
Dew point48°
Tue, 2763° / 43°0
63 °
Port Perry, Tuesday, 27 October
Overcast. High 63°, low 43°.
Pressure30.39 inHg
Wind2.4 mph NE
Humidity85%
Visibility6.2 mi
Dew point50°
Wed, 2867° / 47°0
67 °
Port Perry, Wednesday, 28 October
Overcast. High 67°, low 47°.
Pressure30.33 inHg
Wind2.5 mph SE
Humidity69%
Visibility6.2 mi
Dew point51°
Thu, 2968° / 49°0
68 °
Port Perry, Thursday, 29 October
Clear. High 68°, low 49°.
Pressure30.24 inHg
Wind5.1 mph SW
Humidity63%
Visibility6.2 mi
Dew point50°
Fri, 3065° / 52°0.05
65 °
Port Perry, Friday, 30 October
Light rain. High 65°, low 52°.
Pressure30.15 inHg
Wind4.3 mph SW
Humidity74%
Visibility—
Dew point53°
Sat, 3159° / 45°0
59 °
Port Perry, Saturday, 31 October
Overcast. High 59°, low 45°.
Pressure30.33 inHg
Wind4.3 mph NE
Humidity42%
Visibility—
Dew point34°
Sun, 0160° / 46°0
60 °
Port Perry, Sunday, 1 November
Overcast. High 60°, low 46°.
Pressure30.24 inHg
Wind3.2 mph NE
Humidity50%
Visibility—
Dew point40°
Mon, 0256° / 50°0
56 °
Port Perry, Monday, 2 November
Overcast. High 56°, low 50°.
Pressure30.12 inHg
Wind5.6 mph NE
Humidity70%
Visibility—
Dew point46°
Tue, 0361° / 44°0
61 °
Port Perry, Tuesday, 3 November
Clear. High 61°, low 44°.
Pressure30.15 inHg
Wind9.4 mph E
Humidity51%
Visibility—
Dew point41°
Wed, 0454° / 39°0
54 °
Port Perry, Wednesday, 4 November
Overcast. High 54°, low 39°.
Pressure30.09 inHg
Wind6.3 mph NE
Humidity42%
Visibility—
Dew point30°
Thu, 0556° / 42°0
56 °
Port Perry, Thursday, 5 November
Overcast. High 56°, low 42°.
Pressure29.94 inHg
Wind5.9 mph W
Humidity31%
Visibility—
Dew point24°
Fri, 0655° / 43°0
55 °
Port Perry, Friday, 6 November
Overcast. High 55°, low 43°.
Pressure29.97 inHg
Wind3.1 mph E
Humidity45%
Visibility—
Dew point33°
Sat, 0763° / 43°0
63 °
Port Perry, Saturday, 7 November
Partly cloudy. High 63°, low 43°.
Pressure29.91 inHg
Wind5.7 mph SE
Humidity44%
Visibility—
Dew point38°
Sun, 0862° / 45°0
62 °
Port Perry, Sunday, 8 November
Light rain. High 62°, low 45°.
Pressure29.65 inHg
Wind10.9 mph SW
Humidity63%
Visibility—
Dew point47°
Mon, 0950° / 43°0.6
50 °
Port Perry, Monday, 9 November
Rain. High 50°, low 43°.
Pressure29.44 inHg
Wind11.9 mph W
Humidity81%
Visibility—
Dew point42°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Sat, 2147° / 35°0.09
47 °
Port Perry, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.09 in
Chance of precipitation40%
Record high67° (2007)
Record low20° (1984)
Sun, 2247° / 34°0.12
47 °
Port Perry, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.12 in
Chance of precipitation38%
Record high68° (1999)
Record low17° (2000)
Mon, 2349° / 33°0.07
49 °
Port Perry, Monday, 23 November
Climate normal for this date — 60-year average.
Average high49°
Average low33°
Average precipitation0.07 in
Chance of precipitation33%
Record high69° (1979)
Record low18° (2000)
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.